If you are invested with some of the top 25 coins that have been established for more than a few months then I would suggest that you increase what you currently hold and reduce you cost average buy-in price. If you are holding some recent ICO coins that are not showing any signs of development progress then I would consider selling them and switch to some of the reliable alts that will probably increase quickly when things recover.

If you do not have and available funds to invest then I would suggest you just HOLD your position for now and wait for a recovery