Backtested and hypothetical results, shown for educational purposes only — not investment advice. Past performance does not indicate future results.
WB WBA — Stretched, weak edge$11.48 · 2025-06-30
WBA shows only a faint, unreliable daily reversal bias.
Current stretch: RSI(2) at 93 is deep overbought — but the daily edge here is thin.
| Rule | Days held | Avg / day | Win rate | Total | CAGR | Sharpe | Max DD |
|---|---|---|---|---|---|---|---|
| ■ After a DOWN close | 5,323 (47%) | +0.063% | 48.8% | +858% | +5.1% | 0.34 | -68.7% |
| ■ After an UP close | 5,467 (48%) | +0.056% | 47.7% | +749% | +4.8% | 0.34 | -93.5% |
| ■ Bottom 10% RSI(2) | 1,144 (10%) | +0.098% | 49.7% | +144% | +2.0% | 0.24 | -34.3% |
| ■ Top 10% RSI(2) | 1,142 (10%) | -0.046% | 45.2% | -52% | -1.6% | -0.12 | -78.9% |
Some assets mean-revert at short horizons (a sharp move tends to partly reverse); others trend (a move tends to continue). At the daily close-to-close horizon the reversal shows up cleanly and consistently in the broad equity indices and mostly breaks down elsewhere — commodities, crypto, and individual stocks carry their own momentum. The names above are the ones where it holds up.
RSI(2) is a 2-day momentum oscillator — below ~10 is short-term oversold, above ~90 overbought. Distance from the 50-day average is measured in standard deviations (z-score). Streak counts consecutive up or down closes. For each, we show what happened over the next 1–5 days, historically.
The strategy table pairs each dip-buy rule against its opposite — day-after-a-down-close vs day-after-an-up-close, and the bottom vs top RSI(2) decile. Both legs of a pair are held one day and trade a similar number of days, so raw returns compare fairly (unlike buy & hold, which wins on total return simply by always being invested). Avg / day — mean return on the days the rule is in the market — is the cleanest apples-to-apples number. Frictionless: no commissions or slippage. A character test, not a tradeable system. Past behaviour is not a forecast.