Heikin Ashi: follow the coloured candles does not beat buy-and-hold on NXPI: -25.6 points a year over 16 years.
Findings derived from the full panel. Each carries its number and its denominator; the computations are reproducible with artifact 2aad8ceec7e6.
Long while the Heikin Ashi candle is bullish (HA close above HA open); exit on the first bearish candle.
The verdict compares the strategy with buying and holding NXPI 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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Finaxion Research (2026). Does Heikin Ashi: follow the coloured candles work on NXPI?. Daily backtest 1962-01-01–2026-08-31, artifact 2aad8ceec7e6. https://finaxion.app/en/research/heikin-ashi/nxpi
Not a recommendation. Past performance does not guarantee future results.