The correlation between Apple Inc. and Microsoft Corporation below:
Correlation of monthly returns
1Y
0.72
Strong positive
3Y
0.41
Moderate positive
5Y
0.54
Moderate positive
10Y
0.57
Moderate positive
Correlation quantifies the degree to which two stocks move in relation to each other. It is a value between -1 and 1 where 1 indicates a perfect correlation where the two stocks move in tandem and -1 indicates a perfect inverse correlation, meaning when one zigs the other one zags. A zero indicates no correlation.
Adjusted close price
AAPL MSFT