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

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

ADX: trade only in strong trends does not beat buy-and-hold on MRVL: -5.3 points a year over 26 years.

Total return
386.1%
Buy and hold
×17
CAGR
6.2%
Sharpe
0.24
Max drawdown
-79.4%
Trades
870
Out of sample
overfit
Years
26
1×10×2001200320052007200920112013201520172019202120232025
StrategyMRVL

Findings

  1. ADX: trade only in strong trends does not beat buy-and-hold on MRVL: -5.3 points a year over 26 years.
  2. Against the S&P 500 over the same window: -2.2 points a year.
  3. Total return +386.1% versus ×17 for buy-and-hold, with 870 trades.
  4. The result does not hold out of sample: it is overfit.
  5. Maximum drawdown -79.4%.
  6. It beat before 2013 and stopped afterwards.
  7. It ranks #36 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 MRVL 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 MRVL → · Full page for ADX: trade only in strong trends →

How to cite

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

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