hmm none! The Cryptocurrency market is very unstable right now. This is different from usual stock market instability. When stock indices fall, given enough time they will bounce back. However, Crypto's very viability is in question so it is a very risky gamble.
That said, it all depends on your investment profile. Are you a big risk big reward person? Even if that is the case crypto's don't really offer high rewards for the high risk at this point in history