What does the Fit rating mean?

Fit says adds, neutral or detracts.

Cupel · 2026-10-03 23:05 · official answer

Fit is what replacing a fifth of the index by this run adds to the index's return at the index's own risk, in points a year, with the run's edge cut by the decay curve. It adds at +0.30 or more, and detracts at -0.30 or worse.