S&P 500 Forecast: Long-Term Prediction for the Next 10 Years

By [Author Name], CFA | Reviewed by [Reviewer Name], CFP | Last Updated: January 2025

Disclaimer: This content is for informational purposes only and does not constitute investment advice. Past performance is not indicative of future results.

Key Takeaways

• Institutional forecasts for the S&P 500 over the next decade range from approximately 3% annualized nominal returns (Bear Case) to 4-7% (Base Case) to 9-12% (Bull Case), all below or at the lower end of the historical average.
• Goldman Sachs Research, in its October 2024 report, projected approximately 3% annualized nominal returns for the next decade, citing elevated valuations, mega-cap market concentration, and profit margin pressure.
• The S&P 500 has delivered approximately 10.5% annualized total returns (nominal) since 1957, making current institutional forecasts a meaningful step down from historical norms.
• The CAPE ratio (Shiller P/E) currently sits well above its long-run historical average of approximately 17x, and elevated starting valuations are the strongest empirical predictor of below-average 10-year forward returns.
• The only true lost decade in modern S&P 500 history was 2000-2009, which began from a CAPE of approximately 44, far above today's reading of approximately 35-38.
• For investors contributing monthly via 401(k) or auto-invest, dollar-cost averaging reduces the impact of any single entry-point valuation, and a period of lower near-term returns means accumulating more shares at cheaper prices.

Table of Contents

1. What the S&P 500 Is Projected to Return Over the Next 10 Years
2. Historical S&P 500 10-Year Returns: What the Track Record Shows
3. How Long-Term S&P 500 Forecasts Are Made
4. What Major Institutions Project for the S&P 500 Over the Next Decade
5. S&P 500 Bull, Base, and Bear Case Scenarios for 2025-2035
6. Key Risks That Could Drive the S&P 500 Below Consensus Forecasts
7. What These Forecasts Mean for Your Long-Term Investment Strategy
8. Frequently Asked Questions About the S&P 500 10-Year Forecast
9. The Bottom Line on the S&P 500's 10-Year Outlook

What the S&P 500 Is Projected to Return Over the Next 10 Years

Most major Wall Street institutions now project S&P 500 annualized returns well below the historical average for the next decade. Institutional forecasts range from approximately 3% nominal CAGR (compound annual growth rate, the steady annual return that takes an investment from its starting value to its ending value assuming gains are reinvested) at the bearish end, to 4-7% in the consensus range, to 9-12% in an optimistic bull case scenario. For comparison, the S&P 500 (the market-capitalization-weighted index of approximately 500 of the largest publicly traded US companies, also referred to as SPX) has delivered approximately 10.5% annualized total returns since 1957, and that historical figure includes reinvested dividends, not just price appreciation alone. For a comprehensive overview of what the S&P 500 is and how it works, see our beginner's guide.

The central tension driving this forecast gap is valuation. Goldman Sachs Research, in its October 2024 report, projected the index would return approximately 3% annually over the coming decade, compared to approximately 13% over the prior decade. That projection sits at the bearish end of the institutional spectrum, but even the more moderate forecasts from JPMorgan Asset Management and Vanguard cluster in the 4-6% range, still roughly half the long-run average.

This article covers the full picture: the historical track record that serves as a baseline, the forecasting methodologies that explain why projections have shifted lower, the specific institutional estimates and what drives them, three scenario frameworks with explicit return ranges, the risks that could make outcomes worse, and what all of it means for investors building toward retirement or financial independence over the next decade. For near-term context, see our S&P 500 forecast for 2026.

Historical S&P 500 10-Year Returns: What the Track Record Shows

The S&P 500 has delivered an average annualized total return of approximately 10 to 10.5% (nominal) since 1957, according to historical data from Aswath Damodaran's dataset at NYU Stern, but individual 10-year periods have ranged from approximately -1% to over 17%, a spread that matters enormously for retirement planning.

All figures cited in this section are total return, meaning price appreciation plus reinvested dividends. Price return alone (what most index charts display) runs approximately 2-3 percentage points lower. The historical average real return (inflation-adjusted) has been approximately 7-7.5% annually since 1957, according to data adjusted using CPI figures from the U.S. Bureau of Labor Statistics.

All figures represent total return (price appreciation plus reinvested dividends). Sources: Aswath Damodaran, NYU Stern; Macrotrends. Real returns calculated using CPI data from the U.S. Bureau of Labor Statistics. Figures are approximate and rounded. Past performance is not indicative of future results.

The decade-by-decade data shows that the 1990s (approximately 18% nominal CAGR) and 2010s (approximately 13%) were exceptional periods, while the 1970s and 2000-2009 were the worst. The 2000-2009 period, known as the "lost decade," is the only 10-year period in modern S&P 500 history that produced a negative total return: approximately -9% cumulatively, or roughly -1% annualized. That outcome required a specific combination: the index entered 2000 at a historically extreme CAPE valuation of approximately 44, was followed by the dot-com bust (a bear market, defined as a 20% or greater decline from a prior peak, that took the index down approximately 49% from 2000 to 2002), and then the 2007-2009 financial crisis pushed it down a further 57% peak-to-trough. A bull market (defined as a 20% or greater gain from a prior market trough) followed in 2009 but did not complete the recovery until late in the decade. For context on historical recovery patterns and S&P 500 all-time highs, the index has ultimately surpassed every prior peak.

The 20-year perspective is reassuring: 100% of all 20-year rolling periods in S&P 500 history have produced positive total returns. Decade-by-decade performance, however, is genuinely variable, and the starting valuation at the beginning of each decade has been the strongest predictor of which end of that range investors experienced.

How Long-Term S&P 500 Forecasts Are Made

Institutional and academic forecasters rely on three primary methodologies when projecting S&P 500 returns over 10-year horizons. Understanding these methods helps investors evaluate the credibility and limitations of the projections they encounter. The three approaches are: (1) valuation-based models anchored to the CAPE ratio, (2) return decomposition models that break future returns into their component parts, and (3) macro-based models that constrain long-run earnings growth using economic fundamentals.

The CAPE Ratio: The Strongest Long-Term Valuation Signal

The CAPE ratio, also called the Shiller P/E, is the most empirically supported tool for forecasting S&P 500 returns over a 10-year horizon. It divides the S&P 500's current price by its average inflation-adjusted earnings over the prior 10 years, smoothing out short-term volatility in corporate earnings. It was developed by Robert Shiller, a Nobel Prize-winning economist at Yale University, whose historical CAPE dataset is publicly available at econ.yale.edu.

As of early 2025, the CAPE ratio sits at approximately 35-37 (verify current reading at multpl.com), compared to its long-run historical average of approximately 17x. The pre-dot-com-bubble peak was approximately 44 in late 1999 and early 2000. The table below shows how starting CAPE levels have historically corresponded to subsequent 10-year returns.

Based on Robert Shiller's historical S&P 500 CAPE data (econ.yale.edu) and subsequent academic research. Historical relationships are probabilistic, not deterministic. Past performance is not indicative of future results.

The CAPE ratio explains approximately 40% of the variance in 10-year S&P 500 returns, statistically meaningful, but leaving 60% driven by factors that cannot be predicted today. Another widely-cited valuation gauge, the Buffett Indicator (total US market capitalization divided by GDP, named after Berkshire Hathaway CEO Warren Buffett), currently exceeds 200%, consistent with the CAPE ratio's elevated reading. The equity risk premium (ERP, the expected excess return of stocks over the risk-free rate, typically the 10-year Treasury yield) has also compressed significantly from the 2010s near-zero rate environment, raising the bar for equities to justify their valuations.

Return Decomposition: How Earnings, Dividends, and Valuation Multiple Changes Combine

Long-term S&P 500 returns break down into three measurable components: earnings per share (EPS) growth (the aggregate earnings of all S&P 500 companies divided by total shares outstanding), dividend yield, and change in the price-to-earnings multiple. Understanding each component reveals why current forecasts fall below historical averages.

EPS growth has historically averaged approximately 6-7% annually (nominal). US real GDP has grown approximately 2-2.5% annually in recent decades, which sets a practical ceiling on real EPS growth over multi-decade periods: corporations are part of the economy, and their earnings cannot sustainably outpace the broader economy indefinitely. Real EPS growth above approximately 2.5% over the long run requires either profit margin expansion (currently near historical highs) or share count reduction through buybacks.

The dividend yield component has compressed structurally. Today's S&P 500 dividend yield sits at approximately 1.3-1.5% (verify current figure at multpl.com), compared to a historical average of 2-3%. In the 1950s-1970s, dividend yields of 4-6% provided a substantial return floor. Today's lower yield means price appreciation must carry more of the return burden.

The third component, P/E multiple change, is the most uncertain. Mean reversion (the tendency of elevated valuations to drift back toward long-run historical averages) from the current CAPE of approximately 35-37 toward the historical average of approximately 17 would subtract approximately 3-4% annually from total returns over a decade. Goldman Sachs' bearish forecast is partly driven by an assumption that current profit margins of approximately 12-13% will revert toward historical norms of approximately 8-9%, compressing future EPS growth.

A worked example illustrates the math: if EPS grows 6%, dividend yield contributes 1.4%, and the P/E multiple contracts by 2%, the net total return is approximately 5.4% annually, below the historical average but positive.

Current Valuation: Is the S&P 500 Overvalued?

By several traditional measures, the S&P 500 is trading at elevated valuations relative to its long-run history, and starting valuation is the strongest empirical predictor of 10-year forward returns.

Three metrics tell the same story. The CAPE ratio at approximately 35-37 sits more than double its historical average of approximately 17x. The forward P/E ratio (current price divided by estimated next-12-months earnings) stands at approximately 21-23x, above its historical average of approximately 16x. The Buffett Indicator exceeds 200%, another reading well above long-run norms.

Elevated valuations do not signal an imminent market decline. Markets can remain at elevated valuations for years, and extended periods of elevated valuations are sometimes justified by structural economic changes. The AI productivity argument, addressed fully in the Bull Case scenario below, makes a credible case that some portion of current valuations may reflect real future earnings potential. The empirical record, however, is clear: starting valuation is the strongest single predictor of subsequent 10-year returns, and elevated starting valuations have historically been followed by below-average returns. These valuation signals form the primary input into current institutional forecasts, which is why most models project returns well below the historical average.

How Accurate Are Long-Term S&P 500 Forecasts?

Long-term S&P 500 forecasts are more useful for setting expectations than for predicting outcomes. Even the best valuation-based models explain only approximately 40% of the variance in 10-year returns, leaving 60% driven by factors that cannot be reliably predicted today.

The historical record of forecast failures runs in both directions. After the market bottomed in March 2009, nearly all institutional and academic models projected subdued returns based on the damage of the financial crisis. What followed was approximately 13-15% annualized returns through 2019, a bull market that outperformed nearly every forecast. In the opposite direction, optimistic forecasts from late 1999, when the CAPE ratio peaked at approximately 44, failed entirely to predict the lost decade that followed.

The practical conclusion: treat 10-year forecasts as probability ranges, not point predictions. A model that correctly identifies the direction of returns (below-average versus above-average) and a plausible range is doing its job well. Using a forecast to time the market or predict a specific annual return asks more than the data can support.

What Major Institutions Project for the S&P 500 Over the Next Decade

Most major Wall Street institutions project S&P 500 annualized nominal returns of 3-7% over the next decade, well below the historical average of approximately 10.5%, with the most bearish projection coming from Goldman Sachs Research and the more moderate estimates from JPMorgan Asset Management and Vanguard. The table below summarizes the current institutional consensus.

All forecasts represent published projections from named third-party institutions as of the dates noted. These projections do not constitute investment advice. Institutional forecasts are subject to change; verify current figures at time of reading. Sources: Goldman Sachs Research, JPMorgan Asset Management LTCMA, Vanguard Capital Markets Model, Bank of America Global Research. All forecasts represent the published views of these institutions and do not represent the views of this publication.

Goldman Sachs: The Bear Case at 3% Nominal

Goldman Sachs Research, in its October 2024 report, projected that the S&P 500 will deliver approximately 3% annualized nominal returns over the next decade, compared to approximately 13% annualized over the prior decade. Goldman Sachs, one of Wall Street's largest investment banks and a widely followed source of market research, cited three primary drivers for this projection.

First, historically elevated starting valuations as measured by the CAPE ratio. With the index entering the forecast period at a CAPE of approximately 35-37, the empirical relationship between high starting valuations and below-average forward returns argues strongly for subdued outcomes.

Second, extreme market concentration in a small number of mega-cap technology stocks. The Magnificent 7 (Apple, Microsoft, NVIDIA, Amazon, Alphabet, Meta, and Tesla) collectively represent approximately 35% or more of total S&P 500 market-cap weight as of early 2025. Goldman's analysis notes that traditional valuation models were calibrated on a more diversified index, meaning this concentration introduces single-company and sector-specific risks that historical CAPE models do not fully capture.

Third, expected compression of currently above-average corporate profit margins. Current S&P 500 profit margins of approximately 12-13% sit well above the historical norm of approximately 8-9%. Goldman assumes a partial reversion toward historical averages will compress future EPS growth relative to revenue growth, reducing one of the three return components. Goldman's projection represents the bearish end of the institutional spectrum; JPMorgan and Vanguard, using different methodological assumptions, arrive at more moderate conclusions.

JPMorgan Asset Management: A Moderate View at 4-6%

The multi-factor methodology behind JPMorgan Asset Management's forecast produces a more moderate projection than Goldman's valuation-focused model. JPMorgan Asset Management, the investment arm of JPMorgan Chase, publishes its Long-Term Capital Market Assumptions (LTCMA, the firm's annual multi-factor return forecast) report annually, making it one of the most detailed and widely cited institutional return forecasts available.

The LTCMA projects approximately 4-6% annualized nominal returns for US large-cap equities over the coming decade. The model incorporates earnings growth projections, dividend yield, valuation normalization assumptions, and macroeconomic inputs including interest rate trajectories and GDP growth forecasts. This approach allows JPMorgan to model partial CAPE mean-reversion scenarios rather than assuming full reversion, which produces more moderate return estimates than the most pessimistic CAPE-anchored models. The result is a forecast still well below the historical 10.5% average, but meaningfully above Goldman's bearish projection.

Vanguard: CAPE-Anchored Model Projects 4-6%

Vanguard's published range of 4-6% annualized nominal returns for US equities comes from the Vanguard Capital Markets Model (VCMM, Vanguard's proprietary quantitative forecasting framework anchored to CAPE-based valuation inputs). Vanguard, the investment management firm that created the first retail index fund and manages trillions in S&P 500-linked assets (VOO is among the world's largest ETFs by assets under management), publishes its annual Economic and Market Outlook using the VCMM.

The model is CAPE-anchored and quantitatively rigorous, making it methodologically similar to academic approaches. Vanguard's 2025 outlook notes that international developed market equities currently trade at lower CAPE valuations than US equities, and projects that international stocks may outperform US large-cap on a 10-year horizon from current starting valuations, a consideration relevant to diversification decisions addressed later in this article.

S&P 500 Bull, Base, and Bear Case Scenarios for 2025-2035

Three scenarios capture the plausible range of S&P 500 outcomes for the decade from 2025 to 2035. Each scenario requires specific economic conditions to materialize, and the probability of any single scenario occurring exactly as described is low. The value is in understanding the range and the drivers behind each outcome.

Bear Case (0-3% Nominal CAGR): Valuation Compression and Margin Pressure

The Bear Case projects 0-3% annualized nominal returns for the S&P 500 over the next decade, a scenario that requires current elevated valuations to compress significantly toward historical averages.

This scenario would require four conditions to converge: the CAPE ratio reverts toward 20-25x from its current approximately 35-37; corporate profit margins compress from approximately 12-13% toward historical norms of approximately 8-9%; dividend yield remains near current lows of approximately 1.3-1.5% (providing limited return support); and no major AI-driven productivity acceleration materializes to offset the valuation and margin headwinds.

Goldman Sachs' approximately 3% nominal forecast represents essentially the optimistic end of the bear case range. Under the most pessimistic version of this scenario (full CAPE reversion, full margin compression), returns could approach 0% nominally.

The purchasing power implication is significant: at 3% nominal with 2.5% average inflation, the real return is approximately 0.5%, meaning the purchasing power of a portfolio barely grows over the decade.

Base Case (4-7% Nominal CAGR): Below-Average but Positive

Rather than mirroring the bear case's worst assumptions or the bull case's most optimistic projections, the Base Case builds from the median of current institutional evidence. It projects 4-7% annualized nominal returns, below the historical average but positive, consistent with the central estimates from JPMorgan Asset Management and Vanguard.

This scenario rests on four assumptions: moderate EPS growth of 5-7% annually, roughly in line with historical norms; partial CAPE reversion toward 25-28x (not full reversion to the historical average of approximately 17, which would be more damaging); inflation settling at 2-2.5%; and a Federal Reserve neutral rate in the 3-3.5% range. Under these conditions, the return decomposition math produces outcomes in the 4-7% range: earnings growth contributes the bulk of the return, dividend yield adds approximately 1.3-1.5%, and modest P/E compression subtracts approximately 1-2%.

The base case real return is approximately 2-5% annually after inflation, below the historical average but genuinely positive. This is the most planning-relevant scenario for most long-term investors.

Bull Case (9-12% Nominal CAGR): AI-Driven Earnings Acceleration

The Bull Case stands apart from the other two scenarios because its primary driver is a structural shift rather than a cyclical one. It projects 9-12% annualized nominal returns, roughly in line with historical averages, and depends primarily on artificial intelligence delivering measurable productivity gains that accelerate corporate earnings growth beyond historical norms.

This scenario requires four specific conditions: AI-driven productivity gains accelerate S&P 500 EPS growth to 8-10% annually (above the historical approximately 6-7%); profit margins hold near current highs or expand further as AI reduces labor costs; inflation remains contained at approximately 2%; and interest rates normalize at moderate levels of approximately 3%.

The AI mechanism deserves specific examination. If generative AI delivers a productivity revolution analogous to the internet's long-term economic impact, compressing costs across industries, accelerating revenue growth for technology companies (which represent approximately 30% of S&P 500 weight), and raising corporate output per dollar of labor, the bull case has genuine analytical grounding. NVIDIA, Microsoft, and Alphabet are already reporting accelerating revenue from AI-related products and services, and these companies constitute a significant portion of the index. If AI delivers GDP-level productivity gains analogous to the internet's eventual economic impact (but with more durable earnings realization than the late 1990s bubble), current valuations may prove partially justified.

The symmetric risk must be stated: if AI revenue growth disappoints relative to the capital being invested, a tech-led valuation correction is possible. Current AI investment is concentrating valuations in already-expensive mega-cap stocks, which is also part of Goldman Sachs' bear case argument. The bull case is genuinely plausible, and genuinely conditional.

What These Scenarios Mean in Real (Inflation-Adjusted) Terms

Nominal returns tell only part of the story. What matters for retirement planning is purchasing power growth, which requires adjusting for inflation.

Nominal return is the raw percentage gain. Real return adjusts for inflation, showing actual growth in purchasing power. A worked example: a 6% nominal return with 3% inflation produces a 3% real return, meaning your purchasing power grows at 3%, not 6%. The distinction is most consequential for the bear case: Goldman Sachs' approximately 3% nominal forecast with 2.5% inflation produces approximately 0.5% real returns, essentially flat in purchasing power terms.

Table T4a: S&P 500 Scenario Returns (Nominal)

Table T4b: S&P 500 Scenario Returns, Nominal vs. Real (Inflation-Adjusted)

Real returns calculated by subtracting the assumed inflation rate from the nominal CAGR. Precise formula: (1 + nominal) / (1 + inflation) - 1. Figures do not account for taxes or fees. Past performance is not indicative of future results.

Where Will the S&P 500 Be in 2030 and 2035?

Based on an S&P 500 level of approximately 5,900 as of early January 2025 (verify current level at time of reading), the following scenario projections apply for 2030 and 2035. These figures use the compound growth formula FV = PV x (1 + r)^n and assume a constant annual growth rate. Actual annual returns will be volatile and non-linear.

Projections calculated using compound growth formula: FV = PV x (1 + r)^n from an approximate starting level of 5,900 in January 2025. Assumes constant annual growth rate; actual market returns vary year to year. These are illustrative projections, not forecasts or investment recommendations. Verify current S&P 500 level at the time of reading. Past performance is not indicative of future results.

Key Risks That Could Drive the S&P 500 Below Consensus Forecasts

Six specific risk factors, each with a defined mechanism, could push S&P 500 returns below even the current below-consensus institutional forecasts.

The Six Primary Risk Factors

1. Valuation Mean Reversion. The CAPE ratio at approximately 35-37 sits more than double its long-run historical average of approximately 17. Full reversion over 10 years would subtract approximately 3-4% annually from total returns, by itself sufficient to reduce a 7% earnings-growth scenario to a 3-4% total return outcome. Even partial reversion toward 25x would create a meaningful return headwind.

2. Earnings Margin Compression. Current S&P 500 profit margins of approximately 12-13% are near historical highs and above long-run norms of approximately 8-9%. If margins revert due to wage inflation, rising input costs, or competitive pressure, aggregate EPS growth will disappoint relative to revenue growth, reducing the earnings component of the return decomposition. Tracking quarterly S&P 500 earnings season results provides the earliest signal of whether margin compression is materializing.

3. Prolonged Higher Interest Rates. If the Federal Reserve maintains a structurally higher neutral rate than the near-zero environment of 2010-2020, the multiple expansion that drove much of that decade's returns is unlikely to repeat. Higher rates raise the discount rate applied to future earnings, compressing P/E multiples. They also make bonds more competitive versus equities, reducing the equity risk premium. And they raise corporate borrowing costs, particularly for debt-heavy companies, squeezing margins from the cost side.

4. Market Concentration Risk. The Magnificent 7 mega-cap technology companies (Apple, Microsoft, NVIDIA, Amazon, Alphabet, Meta, and Tesla) represent approximately 35% or more of total S&P 500 market-cap weight. The GICS Information Technology sector plus Communication Services (which includes Alphabet and Meta) together represent approximately 40% or more of the index. Any valuation re-rating, regulatory action, or earnings disappointment among these companies would affect the index disproportionately, and traditional CAPE models calibrated on a more diversified historical index may understate this concentration risk.

5. Inflation Resurgence. Even if nominal returns remain adequate, a return to elevated inflation (as experienced during the 2021-2023 cycle when CPI peaked above 9%) would erode real returns significantly. A bear case 3% nominal return with 4% inflation produces a negative real return, meaning purchasing power actually shrinks despite the index posting positive nominal gains.

6. Geopolitical Tail Risks. Escalating US-China technology and trade tensions, military conflicts with potential global economic spillovers, and energy supply disruptions represent tail risks that are difficult to model but have historically caused short-term market dislocations. While individual geopolitical events have rarely derailed long-term S&P 500 returns on their own, a sustained period of deglobalization or supply chain fragmentation could structurally raise input costs and compress corporate margins across industries.

Could the S&P 500 Have Another Lost Decade?

A lost decade (a 10-year period with near-zero or negative total returns) is possible but historically uncommon, and would require conditions more extreme than current starting valuations alone.

The 2000-2009 period is the only true lost decade in modern S&P 500 history, producing approximately -9% cumulative total return, or roughly -1% annualized. The conditions that created it were specific: the index entered the decade at a CAPE of approximately 44 (the highest reading in modern history), was followed by a -49% decline in the dot-com bust from 2000-2002, and then absorbed a -57% peak-to-trough decline in the 2007-2009 financial crisis.

The current CAPE of approximately 35-37 is elevated, but it is not at 1999-level extremes. A true lost decade from today's valuations would require both sustained elevated valuations and a sustained major bear market event, either a second prolonged structural bear market within the decade or a significant recession that compresses earnings for multiple years. A bear market (a 20% or greater decline from a prior market peak) is near-certain within any 10-year window based on historical frequency; the S&P 500 has experienced bear markets roughly every three to five years on average. The question is whether the next bear market is a brief cyclical correction of 20-30% (as in 2020 and 2022) or a prolonged structural decline of 40-60% (as in 2000-2002 and 2007-2009). The more probable below-average scenario involves positive but low returns (1-4% nominal) rather than outright losses.

Investors who understand these specific risk mechanisms, rather than treating "market risk" as a vague abstraction, are better positioned to assess whether their portfolio is appropriately constructed for the range of likely outcomes. For a comparison of how the S&P 500 performs relative to alternative safe-haven assets during downturns, see our analysis of gold vs. the S&P 500.

What These Forecasts Mean for Your Long-Term Investment Strategy

The scenario analysis above provides the analytical framework. This section translates it into the practical questions most investors are actually asking.

If You Invest $10,000 Today: Lump-Sum Projections

A $10,000 lump-sum investment today produces meaningfully different ending values across the bear, base, and bull case scenarios, and inflation erodes those nominal figures further.

For the S&P 500 to double in 10 years, it would need to achieve a CAGR of approximately 7.2%. This figure comes from the Rule of 72 (72 divided by 10 years equals 7.2% CAGR required). Historically, the S&P 500's approximately 10.5% nominal CAGR would have doubled an investment in roughly seven years. Under most current institutional forecasts projecting 3-6%, a doubling within 10 years is less certain than historical norms would suggest.

Projections assume a single lump-sum investment of $10,000 and a constant annual growth rate. Actual returns vary year to year. Figures calculated using FV = $10,000 x (1 + r)^10. Real values calculated using 2.5% annual inflation assumption. Figures do not account for taxes, transaction fees, or fund expense ratios. Past performance is not indicative of future results.

If You Invest Monthly: Dollar-Cost Averaging Projections

Most long-term S&P 500 investors do not commit a lump sum today. They invest monthly through payroll deductions or auto-invest, which changes how the forecast matters for them.

Dollar-cost averaging (DCA, the practice of investing a fixed amount at regular intervals regardless of market price) is how most long-term S&P 500 investors actually build wealth, through 401(k) payroll deductions or automatic brokerage contributions. You buy more shares when prices are lower and fewer when prices are higher, which reduces the impact of any single entry-point valuation. Because most S&P 500 forecast analyses model only lump-sum investments, the table below fills a gap by showing what monthly investing actually produces across the scenario range.

Projections use the future value of annuity formula with monthly compounding: FV = PMT x [((1 + r/12)^(120) - 1) / (r/12)]. Assumes consistent monthly contributions for 120 months. Figures are approximate and do not account for taxes, fund expense ratios, or transaction costs. Actual results depend on the price path of the S&P 500, not just the ending CAGR. Past performance is not indicative of future results.

Even in the bear case, $500 per month invested consistently for 10 years grows to approximately $69,000 from $60,000 contributed. A period of lower near-term returns means accumulating more shares at cheaper prices, and a correction during the accumulation phase can actually improve long-term outcomes compared to a steadily rising market. DCA projections assume consistent contributions throughout; results depend on the price path over the period, not just the ending CAGR.

Is It a Good Time to Invest in the S&P 500 Long Term?

At current valuations, the S&P 500 offers a lower expected return than historical averages suggest, and that is a real consideration worth examining before you decide how to proceed.

Four factors deserve weight in this decision:

The valuation concern is real. The CAPE ratio at approximately 35-37 is well above its historical average of approximately 17. Starting valuations are the strongest empirical predictor of 10-year returns, and elevated starting valuations have historically produced below-average returns. This article does not dismiss that evidence.

Time-in-market has historically outperformed market-timing. Research on investor behavior consistently shows that investors who delay investing while waiting for better entry points typically underperform those who invest consistently, because markets can remain elevated longer than expected. The cost of waiting in cash while valuations remain elevated has historically exceeded the benefit of eventually finding a lower entry point.

For regular contributors, market timing is largely irrelevant. If you invest monthly via a 401(k) or auto-invest plan, you are already dollar-cost averaging. The entry-point valuation question is less relevant to you than to a lump-sum investor. A period of below-average near-term returns would actually benefit you by lowering the average price at which you accumulate shares.

Time horizon determines outcome more than entry point. For investors with a 10-year or longer horizon, even historically elevated starting valuations have produced positive real returns in most historical periods (the 2000 exception required a CAPE near 44 plus two consecutive bear markets). A 15- or 20-year horizon further improves the odds significantly.

Consider speaking with a qualified financial advisor before making investment decisions. Individual circumstances, including your time horizon, risk tolerance, existing portfolio composition, and tax situation, significantly affect which strategies are appropriate for you.

How S&P 500 Forecasts Compare to Bonds and International Stocks

The compressed equity risk premium at current S&P 500 valuations makes the comparison against bonds and international equities more relevant than it was in the 2010s.

S&P 500 versus bonds: With the S&P 500 projected at 3-7% annually (nominal) and 10-year Treasury bonds currently yielding approximately 4.2-4.5% (verify current yield), the margin by which equities are expected to outperform bonds has narrowed substantially. In the bear case (S&P 500 at approximately 3% nominal), Treasury bonds at current yields offer comparable nominal returns with substantially lower volatility. In the base and bull cases, equities still project to outperform bonds, but the margin is smaller than it was during the 2010s when bond yields were near zero.

S&P 500 versus international stocks: Several institutional forecasters, including Vanguard's VCMM and Research Affiliates, project that international developed market equities may outperform US large-cap equities over the next decade from current relative valuations. International stocks in Europe and Japan currently trade at lower CAPE valuations than the S&P 500, which historically has been associated with higher forward returns. The counterargument is real: US earnings growth quality and dollar strength have consistently exceeded international peers over the past decade. Neither outcome is certain, and the relative valuation case for international stocks is directionally meaningful over long horizons but has been unreliable on short horizons.

For investors deciding to maintain or establish S&P 500 exposure, Bybit offers S&P 500 index trading through its TradFi platform, and SPCXX/USDT spot trading provides tokenized S&P 500 exposure with flexible access. Traditional low-cost index funds such as the Vanguard S&P 500 ETF (VOO), SPDR S&P 500 ETF Trust (SPY), iShares Core S&P 500 ETF (IVV), and Fidelity 500 Index Fund (FXAIX) also provide direct index exposure with expense ratios below 0.05%. For a detailed walkthrough on how to invest in the S&P 500, see our step-by-step guide.

Consider consulting a qualified financial advisor before making asset allocation decisions. Individual circumstances, including your time horizon, risk tolerance, existing portfolio composition, and tax situation, significantly affect which strategies are appropriate.

Disclaimer: This content is for informational purposes only and does not constitute investment advice. Past performance is not indicative of future results.

Frequently Asked Questions About the S&P 500 10-Year Forecast

What is the S&P 500 predicted to do in the next 10 years?

Institutional forecasts for the S&P 500 over the next 10 years range from approximately 3% annualized nominal returns (Goldman Sachs Research, October 2024, the most bearish major institutional forecast) to approximately 4-6% in the consensus range (JPMorgan Asset Management LTCMA, Vanguard VCMM) to 9-12% in an optimistic bull case scenario. This compares to the historical average of approximately 10.5% annualized since 1957. The primary driver of below-historical-average forecasts is the index's elevated starting valuation as measured by the CAPE ratio, which currently sits well above its long-run historical average of approximately 17. Forecasts carry significant uncertainty; even the best models explain only approximately 40% of the variance in 10-year returns.

What is the average return of the S&P 500 over 10 years?

The S&P 500 has delivered an average annualized total return of approximately 10 to 10.5% (nominal) or approximately 7-7.5% (inflation-adjusted) since 1957, according to data from Aswath Damodaran's dataset at NYU Stern. Individual 10-year periods vary significantly, from approximately -1% annualized during the 2000-2009 lost decade to over 17% annualized during the 1990s. The wide variability across decades is why starting valuations matter: the highest-CAPE starting points have consistently produced the lowest subsequent 10-year returns.

Will the S&P 500 double in 10 years?

For the S&P 500 to double in 10 years, it would need to achieve a compound annual growth rate (CAGR) of approximately 7.2%, derived from the Rule of 72 (72 divided by 10 years equals 7.2%). Historically, the S&P 500's approximately 10.5% nominal CAGR would have doubled an investment in roughly seven years. Most current institutional forecasts project annualized returns of 3-6% for the next decade, which puts a doubling within 10 years below the central estimate, though the bull case scenario at 9-12% CAGR would produce a doubling in approximately 8-9 years.

What will the S&P 500 be worth in 2030?

Based on an approximate S&P 500 level of 5,900 in early January 2025 (verify current level at time of reading), scenario projections for 2030 are: Bear Case at 3% CAGR, approximately 6,843; Base Case at 4% CAGR, approximately 7,173; Base Case at 7% CAGR, approximately 8,280; Bull Case at 10% CAGR, approximately 9,500. These figures use compound growth calculations (FV = PV x (1 + r)^5 for the five-year horizon to 2030) and assume constant annual returns. Actual market paths will be volatile and non-linear, and these are illustrative projections, not forecasts or guarantees.

Is it a good time to invest in the S&P 500 long term?

At current valuations, the S&P 500 offers a lower expected return than historical averages, a real, data-supported consideration that should inform expectations. Research on investor behavior consistently shows that investors who remain invested through valuation cycles have historically outperformed those who wait for better entry points, because markets can remain elevated for extended periods. For investors contributing monthly via 401(k) or auto-invest, DCA smooths the impact of any single entry-point valuation. For investors with a 10-year or longer horizon, even historically elevated starting valuations have produced positive real returns in most historical periods. Consider consulting a qualified financial advisor to assess how these forecasts apply to your specific goals and circumstances.

What does Goldman Sachs predict for the S&P 500 over the next 10 years?

Goldman Sachs Research, in its October 2024 report, projected that the S&P 500 will deliver approximately 3% annualized nominal returns over the next decade, compared to approximately 13% annualized over the prior decade. Goldman cited three primary drivers: historically elevated starting valuations as measured by the CAPE ratio; extreme market concentration in mega-cap technology stocks (the Magnificent 7 representing approximately 35% or more of index weight); and expected compression of currently above-average corporate profit margins from approximately 12-13% toward historical norms of approximately 8-9%. Goldman's projection represents the most bearish major institutional forecast currently published.

How accurate are long-term S&P 500 forecasts?

Long-term S&P 500 forecasts explain only approximately 40% of the variance in actual 10-year returns, even when using the most empirically supported tools like the CAPE ratio, leaving 60% driven by factors that cannot be reliably predicted today. Historical forecast failures run in both directions: after the 2009 market bottom, nearly all models underestimated the subsequent bull market that produced approximately 13-15% annualized returns through 2019; in the late 1990s, optimistic forecasts from peak-CAPE conditions failed entirely to predict the lost decade. The appropriate use of 10-year forecasts is to set realistic return expectations and scenario ranges, not to time the market or predict specific annual returns.

What is the CAPE ratio predicting for the S&P 500?

The CAPE ratio (also called the Shiller P/E), currently at approximately 35-37 as of early 2025 (verify at econ.yale.edu or multpl.com), is well above its long-run historical average of approximately 17. Based on Robert Shiller's historical data from Yale University, starting CAPE ratios above 35 have historically been associated with median 10-year forward returns of approximately 3% nominal CAGR, though the full range of outcomes at this CAPE level spans from approximately -3% to approximately 8% annualized. The relationship is probabilistic, not deterministic: elevated CAPE predicts below-average returns with statistical support but cannot predict the specific path or annual returns investors will experience.

The Bottom Line on the S&P 500's 10-Year Outlook

The current evidence points toward a decade of S&P 500 returns that are positive but below historical averages, not a disaster, but a meaningful recalibration from the exceptional 2010s.

Three findings anchor the picture. First, current institutional forecasts cluster in the 3-7% nominal CAGR range, well below the historical approximately 10.5% average, with Goldman Sachs at the bearish end and JPMorgan and Vanguard projecting more moderate but still below-historical outcomes. Second, the primary driver of these subdued projections is the elevated starting valuation as measured by the CAPE ratio, the most empirically supported predictor of long-term returns. Third, the range of plausible outcomes remains genuinely wide: from the bear case at 0-3% nominal (near-zero purchasing power growth) to the bull case at 9-12% (roughly matching historical averages), driven substantially by whether artificial intelligence delivers the productivity revolution that current index concentration implies.

The honest recalibration: lower projected returns than the exceptional 2010s does not mean the S&P 500 is a poor long-term investment. No model predicted the 2010s bull market's strength, and no model can predict the next decade's outcome with certainty. What the data supports is adjusting return assumptions from the exceptional recent decade toward a more historically normal range, planning for 5-7% nominal returns while acknowledging that outcomes could be both better and worse.

For investors building toward retirement or financial independence, the most durable response to this outlook is consistent action: contribute regularly, diversify thoughtfully, and size expectations against the base case rather than the exceptional recent decade. To get started or adjust your S&P 500 exposure, you can trade through Bybit's TradFi platform or explore our guide on how to invest in the S&P 500 step by step.

Consider speaking with a qualified financial advisor before making investment decisions. Individual circumstances, including your time horizon, risk tolerance, existing portfolio composition, and tax situation, significantly affect which strategies are appropriate for you.