I would not risk investing such an amount of USD at such condition of market. If you want to risk - choose a single powerful ICO and go full in there.
Well I suggest you've search a lot first about ICX or ICON before saying anything about ICOs. Not all of ICOs are really good and a lot of them right now are scam and it is really hard to find a good ICOs right now but ICX already establish how good they are just waiting for a big announcement or implementation of their projects so they could be really huge.