Invested in corporate 1
Got profit
Sold the shares
To be invested in corporate 2
Is the investment in corporate 2 dependent/independent of the investment in corporate 1?
Invested in corporate 1
Got profit
Sold the shares
To be invested in corporate 2
Is the investment in corporate 2 dependent/independent of the investment in corporate 1?
Another statistical oriented method is to download the EOD data from a provider, say yahoo.com, for a longer period - 2 years for example, and use Excel to calculate the correlation coefficient between the daily close of the 2 securities.
Anything above +0.7 shows a strong dependency, you would want it to be below that figure.
Exactly –1. A perfect downhill (negative) linear relationship
–0.70. A strong downhill (negative) linear relationship
–0.50. A moderate downhill (negative) relationship
–0.30. A weak downhill (negative) linear relationship
0. No linear relationship
+0.30. A weak uphill (positive) linear relationship
+0.50. A moderate uphill (positive) relationship
+0.70. A strong uphill (positive) linear relationship
Exactly +1. A perfect uphill (positive) linear relationship