If you are not using the Cash, you can flip it in to a money market mutual fund. If you need the cash for BP, you are stuck with the 1.125% rip off rate.
Just realized that TradeStation does not pay interest for futures account. I only have a futures account with them.
So basically TS can take the interest earned by clients money for themselves? That does not sound reasonable. Are they allowed to do that? Is there any regulation that governs this?
But at TS, futures account, equity account and Forex account are seperate accounts, not like IB as combined account. I don't know if one can buy T Bill in a TS futures account.