Reversal & mean-reversion

Pairs mean-reversion

Disconfirmed

The question

Do short-term price reversals and mean-reversion patterns produce a tradeable, cost-surviving edge after realistic frictions?

How it was tested

This is a live observability instrument rather than a pre-registered forward-edge hypothesis: it measures and reports a market condition for operator decision-support. It never auto-trades. Where a forward-edge claim exists, it is pre-registered separately and appears in the log with its own hash.

The outcome

DISCONFIRMED 4/4 (2026-05-06)

The backfill ran and the hypothesis failed its pre-registered bar. It is recorded and retired — not re-tested without a fresh, separately-registered hypothesis.

Pre-registration record

Registered
Pre-registered
n/a (live instrument)
SHA-256 hash

The hash and timestamp are a contemporaneous, immutable record that the hypothesis and its success criteria were fixed before testing — not chosen with hindsight.