These days, it's better to just wait until the project is listed on an exchange to buy. Most likely, you'll be paying much less than if you purchased during the ICO. The ICO fever is over.
Every year these kind of price fluctuation is enter into the market but price fluctuation is not depends on ICO. So we should analyse the project worth then invested in any potential platform because these are make more in future. After listed in exchange this will move forward or backward so better before to investing in ICO surely we will make profit. My suggestion is only for good project not all projects so carefully pick the best platform.