Just looked at your stock PGNX and would have done the same thing myself. Would have sold at the first sign of a red day. You need to lose that I want more attitude, if you want to succeed at trading. The goal for trading is to have more wins then losses. It's not to get the biggest gain or most possible in one trade.
IMO you did great. You have a 10 cent gain in the bank and there is no way to lose it now that it's safe. You can always re-enter if the play warrants it. And get another piece of the pie.
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