I'm invested in eight, and of the three that have now fully cycled through to exchange: Cashaa - purchased in the first week of November, tokens transferred to wallet in mid January, bonus tokens in March, and it started trading on HitBTC towards the end of March. Faceter - purchased in the first week of February, tokens received in first week of April, started trading on HitBTC two days ago. Mark.Space - purchased in late January, tokens received earlier this month, on exchange but still waiting for a credible exchange. All three were purchased in the earliest stage of the ICO. If you are buying early, it takes a while to run through the various stages of the ICO, KYC, token minting, getting onto a major exchange etc. I usually factor in around six months.