I have a couple questions base on the following scenario. I'd appreciate it if you can spare a few minutes to help me out. Thanks! QQQ trading at $30. If I have a buying power of $10,000 to begin with, and I buy 20 call options contracts with strike 25.00 for $500/contract (5 X 100 = 500) for a total cost of $10,000. Questions: 1) Am I allow to short 2000 shares of the QQQ? (because I have 20 calls contracts as my hedge) 2) What kind of margin requirement am I subject to? 3) What is my buying power now? Is it still $10k?