100 Years of the S&P 500: What the Long Arc Tells You - Test

The Long Game: S&P 500 Historical Performance

Forget the week-to-week noise. Sometimes the most useful thing a macro analyst can do is zoom all the way out. The S&P 500 is currently sitting at 7,445.72, up 1.25% on the day. That number means almost nothing in isolation. In context, it means everything.

The Chart That Wins Every Argument

Below is the S&P 500's price history on a log scale — the only honest way to display exponential growth over time. Each horizontal band represents a tenfold increase in index value.

S&P 500 — Approximate Milestones (Log Scale)

10,000 ┤                                               ╭── 7,446 (May 2026)
        │                                            ╭╯
5,000  ┤                                           ╭╯
        │                                          ╯
1,000  ┤                                   ╭────╯
        │                                  ╯
100    ┤                       ╭───────╯
        │                     ╯
10     ┤     ╭─────────────╯
        │   ╯
1      ┼───┬──────┬──────┬──────┬──────┬──────┬──────┬──
          1926  1940  1955  1970  1985  2000  2015  2026

Approximate log-scale representation. Shaded drawdown periods include: Great Depression (1929–32), WWII (1937–42), Oil Crisis (1973–74), Black Monday (1987), Dot-Com Bust (2000–02), GFC (2008–09), COVID Crash (2020).

The Numbers That Matter

The data is straightforward. Since 1926, the S&P 500 has delivered approximately 10% annualised total returns (including dividends). In real, inflation-adjusted terms, that figure settles closer to 7% per year. A $1 investment in 1926 would be worth over $10,000 in nominal terms today.

• Best single calendar year: 1954 — up ~53%

• Worst single calendar year: 1931 — down ~47%

• Number of positive years (since 1928): roughly 70% of all years

• Average peak-to-trough drawdown in bear markets: approximately 33%

• Longest bull market: March 2009 – February 2020 — nearly 11 years, +400%+

What the Chart Actually Argues

The log-scale view makes one thing unmistakeable: every crash looks like a blip on a multi-decade horizon. The Great Depression, the dot-com collapse, the GFC — catastrophic in real time, barely visible at scale. This is not an argument for complacency. Drawdowns are real, and a 50% decline requires a 100% gain just to break even. Sequence-of-returns risk is a genuine threat for anyone withdrawing capital.

But the structural case is durable. The index has compounded through two world wars, multiple recessions, inflation spikes, rate cycles, and geopolitical shocks. The underlying engine — corporate earnings growth, productivity gains, and capital reinvestment — has proven remarkably resilient across regimes.

Today's Context

Where does the current level — 7,445 — fit historically? The index has roughly doubled since 2020 and is trading at elevated valuations by most long-run measures. With CPI still running at 3.95% YoY, the Fed funds rate anchored at 3.64%, and consumer sentiment at a depressed 53.3, the macro backdrop is not uniformly supportive. Real returns from here will likely be lower than the historical average — that is the honest reading of starting-point valuations.

The forward-looking point is this: mean reversion works in both directions. The same history that validates long-run equity ownership also warns that periods of above-trend returns are typically followed by below-trend ones. Investors entering at current levels should calibrate expectations accordingly — but the century-long arc remains intact.