I'm very familiar with the theoretical aspects of credit spreads, but would appreciate insights in to the practical side of trading credit spreads. Assuming it's now 2-Jun-01 and a stock is currently at 21.00. I feel slightly neutral to bullish about it and initiate a 30/20 bull put spread for a net credit of 8.00. I have two questions regarding the situation at expiration. First, if the stock hovers in the 20.00 to 30.00 range, how LIKELY would I be assigned on the short put? Secondly, if I was assigned on the short put, how would I know about it, and would I then have a window of time to exercise my long put? I'm currently holding an account with Interactivebrokers. I also welcome feedback on what generally works with credit spreads, in real life. For example, what's the success rate of ITM/OTM vs OTM/OTM credit spread positions? Thanks everybody.