▲ QUANTGPTTHE STRATEGY LIBRARY ▸
// STUDY RESULT · 1995-01 TO 2026-07

Graham's Defensive Investor Screen

TRADE-OFF

A mechanical quality-value checklist protects the amateur: size, financial strength, earnings stability, dividends, and a sane price.

THE STRATEGY$SPX BUY & HOLD
Growth a year (CAGR)9.7%9.3%
Return per unit of risk (Sharpe)0.590.66
Worst fall (max drawdown)-64.1%-52.6%

// GROWTH OF $1, LOG SCALE

AMBER: THE STRATEGY · GREY: $SPX BUY & HOLD

Tested on years it never saw (from the split): 15.0% a year against 12.4% for the benchmark; Sharpe 0.47 in the training years, 0.75 after.

After 25 bps of trading costs: 8.5% a year. WITHIN RANDOM

// DECADE BY DECADE

ERASTRATEGYBENCHMARK
1990s-0.2%24.3%
2000s7.5%-2.6%
2010s11.0%11.6%
2020s19.6%14.1%

// THE IDEA, AS PUBLISHED

Benjamin Graham, 'The Intelligent Investor' (1949; criteria from the 4th rev. ed., 1973, ch. 14) · 1973

RUN IT YOURSELF ▸ IN THE LIBRARY

A real computation on the QuantGPT warehouse, survivorship-free, walk-forward. Gross returns, no costs except where stated. Past performance is not a promise. Findings, not advice. COMPUTED 2026-09-24 19:41 ON THE QUANTGPT WAREHOUSE: EVERY DELISTED NAME KEPT, FUNDAMENTALS AS FILED. NOT INVESTMENT ADVICE.