correlation — daily-return correlation of two names
Return correlation between two names
The return correlation of NFLX and AAPL: Pearson correlation of daily log-returns over approximately two years, with a 63-day recent window, R² and the beta of NFLX on AAPL. Computed only where price history exists for both names.
NFLXvsAAPL
+0.24
correlation over 501 trading days
95% CI +0.16 … +0.33 · n 501
Low correlation (r < 0.3); the 95% interval lies above zero.
Pearson r +0.24501 shared daily log-returns (~2y)Fisher 95% CI +0.16 … +0.33
Recent (63d)
+0.29
R²
0.06
β of NFLX on AAPL
0.30
Pearson correlation of daily log-returns over ~2 years and a recent 63-day window; the 63-day figure is a short window and varies more than the full-window figure. R² is the share of NFLX's moves explained by AAPL; β on AAPL is the slope of NFLX's daily returns regressed on AAPL's. Negative values are shown in green. Correlations typically rise toward 1 in a sell-off. Research — your decisions, your risk.