INTC .. April 17.50 calls cost like DNA ($0.25) expecting a bounce sometime to 17.50 whether it be before earnings or after, I'd never commit to holding anything through earnings, RIMM was just a 'stroke of luck'. DNA did great in anticiption and so did most everything else, but holding through is another ball game, especially if there is the following:
a) too much pullback before the report (which made YHOO oversold)
b) too much upside before the report (DNA) which made DNA a target for pullback. So I would feel safe to trade these a lot before the report and would buy/ or short on the premarket following the report and/or the crap after any gap up.