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Finaxion Research · Bounce off the lower Bollinger band · single stocks · Recomputed 2026-09-10

Does Bounce off the lower Bollinger band work on HSIC?

Bounce off the lower Bollinger band does not beat buy-and-hold on HSIC: -8.8 points a year over 31 years.

Total return
54.4%
Buy and hold
×20
CAGR
1.4%
Sharpe
-0.06
Max drawdown
-61.9%
Trades
244
Out of sample
overfit
Years
31
1×10×20×19961999200220052008201120142017202020232026
StrategyHSIC

Findings

  1. Bounce off the lower Bollinger band does not beat buy-and-hold on HSIC: -8.8 points a year over 31 years.
  2. Against the S&P 500 over the same window: -9.1 points a year.
  3. Total return +54.4% versus ×20 for buy-and-hold, with 244 trades.
  4. The result does not hold out of sample: it is overfit.
  5. Maximum drawdown -61.9%.
  6. It beats in neither half of the history (split at 2011).
  7. It ranks #128 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 30497848a621.

Exactly what was tested

Close crosses back above the lower band (20, 2σ) after piercing it → entry. Close reaches the 20-day mean → exit.

How to read it

The verdict compares the strategy with buying and holding HSIC 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 HSIC → · Full page for Bounce off the lower Bollinger band →

How to cite

Finaxion Research (2026). Does Bounce off the lower Bollinger band work on HSIC?. Daily backtest 1962-01-01–2026-08-31, artifact 30497848a621. https://finaxion.app/en/research/bollinger-bounce/hsic

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