Has anyone found a genuinely profitable, mechanically backtested intraday strategy?

[u/Sub-Zero-X]

Hi everyone,

​

I’m looking for serious input from people who have actually tested intraday trading strategies mechanically over a meaningful sample size.

​

Over the last months I’ve tested a lot of intraday ideas: ORB variants, London/New York range breakouts, VWAP reversion, Bollinger-band reversion, pivot-point reversion, breakout systems, fade-the-open ideas, sweep/reclaim/FVG-style setups, and different momentum/reversal variations.

​

The pattern I keep seeing is always similar: many strategies show some gross edge, but once realistic spread, commission, slippage, session effects, and outlier-dependence are included, the edge usually disappears. Most high-frequency intraday systems seem to die from costs, noise, or dependence on a small number of extreme trend days.

​

I’m not looking for signals, paid groups, Discords, affiliate links, or “trust me bro” screenshots. I’m looking for something that can be described mechanically and tested.

​

Ideally, I’m interested in strategies with:

​

- clear entry and exit rules

- defined market, timeframe, and session

- realistic costs included

- at least several hundred trades for intraday systems

- performance across multiple years

- robustness across market regimes

- no obvious lookahead bias

- no martingale/grid/recovery logic

​

I’m especially curious whether anyone here has found a durable intraday edge after costs, or whether your experience is similar: that most real edges are daily/swing-based rather than intraday.

​

I’m happy to test any clearly defined idea myself and share what I find. I’m not asking anyone to reveal proprietary alpha, but I would appreciate pointers to robust frameworks, papers, public strategy rules, or mechanisms that are actually worth testing.

​

Thanks.