
Sep 19, 2026 · 7 min
Opening Range Breakout: What the 1,637% Paper Really Says
The famous 5-minute opening range breakout paper reports 1,637%. Its unfiltered baseline made 3.2% a year. What the tables show, and what they skip.
arthur

The famous 5-minute opening range breakout paper reports 1,637%. Its unfiltered baseline made 3.2% a year. What the tables show, and what they skip.

Thirty trades cannot tell a winning system from a losing one. The arithmetic that sets your real sample size, and why every variant you tried raises it.

The right way to use a frontier model in trading work is as a fast, well-read junior analyst — not as a principal making calls. The framing changes which prompts you write, which outputs you trust, and where the model's value actually lives.