The Honest Quant.
Open the Lab

Does buying when RSI crosses above 40 work?

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

76OUT OF 100
PLAUSIBLE BUT FRAGILE

There may be something here, but it isn't robust. Don't size into it yet.

The honest verdict

We ran buying when RSI reclaims 40 through an honest backtest — nearly two decades of survivorship-free NIFTY & BANKNIFTY data, out-of-sample, with real costs. The verdict: 76.2/100 — plausible but fragile. There may be something here, but it isn't robust. Don't size into it yet.

Why it scored 76

Here's where it breaks:

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.

76.2/100
Honesty score
226
Trades tested
50%
Win rate
NIFTY/BANKNIFTY · ~2 decades
Data

See the full breakdown — free

Run buying when RSI reclaims 40 live, pick your market, and get its honest score plus all five tests in about 10 seconds — no signup needed to see the score.

Run buying when RSI reclaims 40 now →

Frequently asked

Is buying when RSI reclaims 40 profitable?

On a true, survivorship-free test (76.2/100, plausible but fragile), buying when RSI reclaims 40 is fragile. 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 buying when RSI reclaims 40 work on the NIFTY?

This verdict was computed on NIFTY 50 and BANKNIFTY index data (survivorship-free) over nearly two decades. It scored 76.2/100 — plausible but fragile.

Is buying when RSI reclaims 40 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.

Related strategies, honestly tested

buying when RSI drops below 30 · the Golden Cross · the SuperTrend indicator · the MACD crossover · buying the lower Bollinger Band · see all →

Get the monthly honest teardown

One popular strategy put on trial, in your inbox — once a month. No signals, no hype.

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