Hi Traders. I am quite new to trading but I came up with an "idea". Please forgive me in advance if it sounds to silly. The thing is: What if you open an Account at a prop firm with lets say 100k. With the overnight lev. 6 to 1 or so you will buy for about 300k DIA shares and short sell for 300k SPY shares. In that case you should get interest on the 300k short position , right. Could you please tell me, in a spare moment you my have, what the catch is with that idea. Thanks in advance for your comments on this. Regards. C.