If you deposit Cash.. then cash is available right away.  If you make a bank transfer deposit...not coming from an account in Schwab it takes 3 days.  Schwab Bank transfer to Schwab Brokerage One account is available immediately.    Otherwise it takes  3 Days for the money to clear.   Schwab gives me the option to use the funds if the stock is marginable. PTSC is not.   Either way, i always just wait the 3 days....