It's amazing to see what Ballmer stepping down from Microsoft has done. Microsoft's stock has outperformed Google's in the past year: https://www.google.com/finance?chdnp=1&chfdeh=0&chdet=140847..., msft&ntsp=0&ei=qJbzU7D4JvLLiQLNuYCACg
Specifically, he addresses CEO's as well as the stock market. I think equating Ballmer's leaving of Microsoft to the stock market success is coincidental at best.