Does the 20/50 EMA crossover actually work?

A computed answer — not an opinion. Here's what nearly two decades of honest data say.

The honest verdict

Across nearly two decades of survivorship-free NIFTY & BANKNIFTY data — out-of-sample, after real costs — the 20/50 EMA crossover scored 82.0/100 and actually survives honest scrutiny. That's rare: most strategies people teach fall apart under this kind of test.

Why it holds up

Here's what it gets right:

• Its edge holds up out-of-sample — it isn't curve-fit
• It's robust to chance, not driven by a few lucky trades
• It still makes money after real costs and slippage

How we tested it

Five statistical tests, no mercy: out-of-sample decay (is the edge curve-fit?), Monte-Carlo robustness (is it just luck?), real cost & slippage survival, survivorship-bias exposure, and sample-size adequacy. Run on NIFTY 50 and BANKNIFTY — survivorship-free by construction, the most honest data available — across roughly two decades. Rules are read at each day's close and filled the next open, so the strategy can never peek at the bar it trades on.

Frequently asked

Is the 20/50 EMA crossover profitable?

On a true, survivorship-free test (82.0/100, survives scrutiny), the 20/50 EMA crossover holds up. A backtest looking profitable is not the same as a strategy being real — most aren't. Test your own version free at The Honest Quant.

Does the 20/50 EMA crossover work on the NIFTY?

This verdict was computed on NIFTY 50 and BANKNIFTY index data (survivorship-free) over nearly two decades. It scored 82.0/100 — survives scrutiny.

Is the 20/50 EMA crossover overfit?

Our overfitting test checks how much of the edge survives out-of-sample. See the full breakdown — and run your own parameters — in the lab.

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Educational, not financial advice. An honest backtest score measures whether a result survives statistical scrutiny — it does not predict future profit, and is not a buy or sell signal. · About · FAQ · All strategies