AOL is the best example and they are in the same market. IBM, Apple without Jobs and i think Microsoft's stock correlates also to these indicators. The economi

AOL is the best example and they are in the same market. IBM, Apple without Jobs and i think Microsoft's stock correlates also to these indicators. The economic theory behind this is very good explained in this TED talk: http://www.ted.com/talks/malcolm_gladwell_on_spaghetti_sauce.html http://www.ted.com/talks/malcolm_gladwell_on_spaghetti_sauce... There are a lot of other examples of companies on their peak, acted defensive and then failed. I would count GM as another popular example, but the ones above are better when you compare them to Facebook.