After Ico the highest selling price in the stock will drop from Ico own price caused by the company's project in development.
examples of Monaco cards
price Ico 1eth = 120 MCO
after Ico dropped to 1ETH = 300 MCO, but in a few months later after they released the black card the Monaco price soared to 1eth = 40 MCO.
I think it's just a matter of time to benefit from Ico purchases