Beta
271.58
36.08
(15.32%)
07/31/2026
Amazon.com, Inc. (AMZN)
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Beta Analysis
AMZN vs. SPY · 501 trading days · 01 Aug 2024 – 01 Aug 2026
Beta
1.39
Slope vs SPY
Adjusted Beta
1.26
Blume, toward 1.0
Alpha
-0.1%
Annualized, mkt-adj
R²
0.46
Explained by SPY
Correlation
0.68
Daily returns
Vol AMZN
34.7%
Annualized
Vol SPY
16.9%
Annualized
Key Observations
- High-beta / aggressive (β = 1.39): AMZN amplifies SPY — a 1% benchmark move maps to ~1.39%, cutting both ways.
- Benchmark explains 46% of AMZN's daily variance (R² = 0.46); a meaningful share is stock-specific, so treat beta as approximate.
- Forward-looking adjusted beta ≈ 1.26 (Blume: pulls the raw β one-third of the way toward the market's 1.0).
- Annualized volatility: AMZN 34.7% vs SPY 16.9% — 2.05× as volatile (more than the benchmark).
Derived from the values above · point-in-time over the selected window · not investment advice.