I'm with TradeStation. For about 3 weeks I get a message saying that shares of Spy are hard to locate and my order is rejected. Yesterday I tried to short SPY, DIA, and IWM early in the morning and got the same message. With orders of only 100 shares I get rejected. What gives? Is everyone really leaning the same way or does TradeStation have a very small supply or is something else going on? I haven't contact them yet, I wanted to be fully prepared to discuss the issue. Thanks