FINAXIONResearch
Finaxion Research · ADX: trade only in strong trends · single stocks · Recomputed 2026-09-10

Does ADX: trade only in strong trends work on DECK?

ADX: trade only in strong trends does not beat buy-and-hold on DECK: -17.1 points a year over 33 years.

Total return
-66.5%
Buy and hold
×71
CAGR
-3.3%
Sharpe
0.04
Max drawdown
-88.1%
Trades
1040
Out of sample
overfit
Years
33
0.1×1×10×100×19941997200020032006200920122015201820212024
StrategyDECK

Findings

  1. ADX: trade only in strong trends does not beat buy-and-hold on DECK: -17.1 points a year over 33 years.
  2. Against the S&P 500 over the same window: -14.1 points a year.
  3. Total return -66.5% versus ×71 for buy-and-hold, with 1040 trades.
  4. The result does not hold out of sample: it is overfit.
  5. Maximum drawdown -88.1%.
  6. It beats in neither half of the history (split at 2010).
  7. It ranks #209 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 5bea546c394a.

Exactly what was tested

Long while +DI(14) is above −DI(14); flat when −DI overtakes +DI. Next-close execution.

How to read it

The verdict compares the strategy with buying and holding DECK 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)

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How to cite

Finaxion Research (2026). Does ADX: trade only in strong trends work on DECK?. Daily backtest 1962-01-01–2026-08-31, artifact 5bea546c394a. https://finaxion.app/en/research/adx-trend-filter/deck

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