"SPY up 1.5% AMZN (Amazing) is up 6.
That''s a beta of 4.0
especially when you add that it's a mega market cap that has a multiple of almost infinity while the S&P is somewhat expensive at about 19. Usually it's the smaller speculative market caps stuff that gets that kind of beta: AMZN still possess it over $170 billion in cap. You're right, it's amazing in alot of ways.