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Finaxion Research · RSI 14: buy oversold (30/70) · single stocks · Recomputed 2026-09-10

Does RSI 14: buy oversold (30/70) work on CB?

RSI 14: buy oversold (30/70) does not beat buy-and-hold on CB: -6.6 points a year over 33 years.

Total return
797.2%
Buy and hold
×67
CAGR
6.8%
Sharpe
0.23
Max drawdown
-60.1%
Trades
54
Out of sample
overfit
Years
33
1×10×19941997200020032006200920122015201820212024
StrategyCB

Findings

  1. RSI 14: buy oversold (30/70) does not beat buy-and-hold on CB: -6.6 points a year over 33 years.
  2. Against the S&P 500 over the same window: -4.0 points a year.
  3. Total return +797.2% versus ×67 for buy-and-hold, with 54 trades.
  4. The result does not hold out of sample: it is overfit.
  5. Maximum drawdown -60.1%.
  6. It beats in neither half of the history (split at 2009).
  7. It ranks #85 of 235 markets for this strategy by annual excess over the S&P 500.

Findings derived from the full panel. Each carries its number and its denominator; the computations are reproducible with artifact 4941ce415f47.

Exactly what was tested

RSI(14) crosses below 30 → entry. RSI(14) crosses above 70 → exit. Next-close execution.

How to read it

The verdict compares the strategy with buying and holding CB over the same window, with round-trip costs per asset class. “Out of sample” is walk-forward: the rule is fit on one stretch and judged on the next. A result that beats in the full sample but not out of it is overfit. Full methodology in the protocol. How we test.

Open this backtest with its trades   Trades (CSV)

Every strategy on CB → · Full page for RSI 14: buy oversold (30/70) →

How to cite

Finaxion Research (2026). Does RSI 14: buy oversold (30/70) work on CB?. Daily backtest 1962-01-01–2026-08-31, artifact 4941ce415f47. https://finaxion.app/en/research/rsi-14-oversold/cb

Not a recommendation. Past performance does not guarantee future results.