re: HSA was moved and now all in cash- what would you with it?

I moved my HSA to Fidelity last year. I also moved my 401k plan into a rollover IRA at Fidelity in 2019. Fidelity is the best investment company . I have self- invested with Schwab , TD, Merrill Lynch and Vanguard for 30 years. No minimum amount of cash is required. If you have a 30 year horizon, you need to be in 100% stocks. Good luck