With Fidelity and Schwab being the leading online brokers, I find it strange that uninvested cash (sweep) at Schwab earns close to 0% while uninvested cash at Fidelity earns money market returns. (Trading at Fidelity is done directly from a money market. At Schwab one first one must move the funds to cash and then trade.) My question is "how much does this hurt Schwab in their competition with Fidelity?" Does Schwab make accommodations for high net worth clients to do this Fidelity's way?