correlation — daily-return correlation of two names
Return correlation between two names
The return correlation of KO and AAPL: Pearson correlation of daily log-returns over approximately two years, with a 63-day recent window, R² and the beta of KO on AAPL. Computed only where price history exists for both names.
KOvsAAPL
+0.14
correlation over 501 trading days
95% CI +0.05 … +0.22 · n 501
Low correlation (r < 0.3); the 95% interval lies above zero.
Pearson r +0.14501 shared daily log-returns (~2y)Fisher 95% CI +0.05 … +0.22
Recent (63d)
+0.26
R²
0.02
β of KO on AAPL
0.09
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 KO's moves explained by AAPL; β on AAPL is the slope of KO'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.