The S&P 500 has outpaced U.S. inflation in 16 of the past 20 years, a record that highlights equities' long-term ability to preserve purchasing power. That same history, however, also shows that stocks can struggle when inflation, financial stress, and tighter monetary policy coincide.

That long-term advantage is being tested again in 2026. Inflation remains above the Federal Reserve's target, yet corporate profits continue to support equities: the index has gained more than 12% this year and sits close to its August record despite persistent price pressures. The dynamic matters beyond investor portfolios: for savers holding cash or low-yielding assets, an inflation rate above 3% erodes purchasing power each year, which is one reason long-horizon investors often compare equity returns against consumer-price growth rather than in nominal terms alone.

S&P 500 Delivered Real Gains in 16 of the Past 20 Years

The Kobeissi Letter highlighted the long-term trend on Sunday, pointing to strong inflation-adjusted returns across the three most recent completed calendar years. In 2025, the benchmark produced a real return of roughly 14.76% after a total gain of 17.88% including dividends, with U.S. consumer prices up 2.7% through December.

US stocks are well positioned for inflation.

In 2025, the S&P 500 posted a +14.76% inflation-adjusted return, with inflation running at +2.70% for the year.

This followed real returns of +21.47% in 2024 and +22.11% in 2023.

Over the last 20 years, the largest real return was… pic.twitter.com/VCVAyxpf2h

— The Kobeissi Letter (@KobeissiLetter) August 30, 2026 (X post)

Those 2025 results followed even stronger inflation-adjusted performances of 21.47% in 2024 and 22.11% in 2023. Earlier periods produced similarly wide gaps between stock returns and consumer prices. In 2013, the S&P 500 delivered a 32.39% total return while year-end inflation stood at just 1.5%, translating into a real return of roughly 30.4% — an illustration of how rising stock values can substantially exceed moderate consumer-price growth.

The long-term record also contains notable exceptions. The benchmark failed to beat inflation in 2008, 2011, 2018, and 2022. During the financial crisis, the index fell 37% in 2008. It returned only 2.11% in 2011 as inflation reached 3%, declined 4.38% in 2018, and dropped 18.11% in 2022, when annual inflation ended at 6.5%. Those years underline the limits of treating equities as a guaranteed short-term inflation hedge. Reports have also found that real equity returns historically weaken when inflation exceeds 3%. The failure years also share a common feature: each coincided with either a financial shock or an aggressive monetary tightening cycle, underscoring that the inflation-adjusted record depends heavily on the broader policy and credit backdrop rather than on inflation alone.

34.5% Earnings Growth Keeps 2026 Rally Near Record Highs

That 3% threshold has become increasingly relevant this year. U.S. CPI inflation reached 3.4% in July, according to the Bureau of Labor Statistics, while the PCE price index increased 3.7%. Core PCE, which excludes volatile food and energy prices, rose 3.3%, keeping underlying inflation well above the Federal Reserve's 2% objective.

Fed Chair Kevin Warsh reinforced that stance on Friday, saying inflation remained too high and describing the central bank's 2% target as firm, according to his speech. His remarks leave open the question of how long the central bank can hold policy restrictive without weighing on the earnings growth that has underpinned this year's advance — a tension markets will be watching in upcoming inflation prints and Fed communications.

Despite those pressures, corporate earnings have kept strengthening. Second-quarter S&P 500 earnings are tracking approximately 34.5% above year-earlier levels, according to LSEG I/B/E/S data. FactSet also reported that analysts raised third-quarter earnings estimates during July rather than cutting them — an uncommon development at that stage of the quarter.

That earnings momentum has helped push the index more than 12% higher during 2026. The S&P 500 closed Friday at 7,711.76, slightly more than 1% below its August record. A Reuters strategist poll produced a median year-end target of 7,900.

Valuations, however, remain elevated. The benchmark traded near 20.2 times forward earnings in late August, with leadership concentrated among large technology and AI-linked companies. That concentration means overall index performance has become increasingly sensitive to results from a small group of mega-cap names, a factor worth monitoring as third-quarter earnings season approaches and the next rounds of CPI and PCE data arrive.

The 20-year record therefore shows a clear pattern rather than a guarantee. Stocks usually beat inflation, but earnings growth remains critical when price pressures stay elevated. In 2026, corporate profits have so far provided that support, allowing equities to advance even with inflation running above 3%.