AAPL332.21-0.06 (-0.02%) session● PRIOR SESSION CLOSE
market beta & sensitivity — vs SPY, real returns
Market beta and sensitivity to the benchmark
The name's beta (covariance ÷ variance) against SPY from real daily returns — how much it amplifies or dampens the market's moves — plus the return correlation, R² (the share of the move the market explains) and the annualized alpha (the return the market does not explain). Beta is a sensitivity, not a direction.
AAPLvs SPY · 493 real daily returns
Beta · 2y
1.07×
vs SPY · ±0.06 (1 SE)
Beta · 3m
0.10×
recent 63-day window — noisy by construction
Correlation
0.61
R² 37% explained by market
Alpha · ann.
+3.75%
no significance test — a description, not a verdict
beta 1.07×493d daily log-returns vs SPYOLS cov/var · SE ±0.06beta 0.10×recent 63dsame regression · approx SE ±0.18 (√n-scaled)alpha +3.75%493d dailyOLS intercept ×252 — descriptive, no t-stat served
AAPL has a beta of 1.07× vs SPY — it moves about with the market. The market explains about 37% of its day-to-day moves; the rest is name-specific. Drift: recent (63-day) beta is lower (0.10× vs 1.07×), beyond the ±0.36 two-SE noise band — sensitivity is falling.
2-year1.07×
3-month0.10×
Beta = cov(name, market) ÷ var(market) on 493 real daily log-returns vs SPY. Annualized alpha = the daily excess the market doesn't explain × 252, reported without a significance test. SE(β) = |β|·√((1/R²−1)/(n−2)) on the served R² and window; the 63-day SE is √n-scaled from it (approximate), and rising/falling is only claimed beyond 2 SE. Your decisions, your risk.