META: factor decomposition (Technology)

How much of META's move over the window is systematic (market, XLK sector-excess, rate-excess via TLT) vs. idiosyncratic (stock-specific).

Return decomposition (log-return points, additive)

Market+28.68ppSector (excess)-22.85ppRate (excess)+0.59ppIdiosyncratic-0.94pp

Factor betas

Beta · Market (SPY)+1.42
Beta · Sector-excess (XLK)-0.55
Beta · Rate-excess (TLT)-0.16
R²0.24
Window2025-08-22 → 2026-09-24 (273 trading days)

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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.