Moderate confidence: R² is 0.24; these three factors explain some but not most of META's day-to-day variance. Treat the split below as directional.
Of META's +5.5pp move over this window, -0.9pp (17% of the total magnitude) is idiosyncratic, not explained by riding market, sector, or rate moves. The rest (+6.4pp) came from systematic exposure: market +28.7pp, sector -22.8pp, rate +0.6pp.