Observed arrival · 2026-09-06
Researchbook, an investing lab that publishes its failures
A public research book for systematic investing techniques, with ideas preregistered, tested against real costs, and monitored or killed in the open.
Field notes
Researchbook uses a four-stage record: commit the hypothesis and kill criteria, test after accounting for spread, fees, tax, and latency, publish failures, then monitor survivors. Its atlas currently describes 92 techniques across 10 research areas, with 41 killed and 51 standing. The page also separates 13 kills with written reopen conditions from 28 without them, preserving the difference rather than smoothing it into a success narrative.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
One card from the complete issue