Just another quick study using RIMM here:
(All numbers according to Yahoo - sorry if any typos or errors!)
Apr 27th close - 55.57
Apr 55 Call close - $81
Apr 55 Put close - $22
Straddle cost $103
First of all, with earnings coming tonight (28th) I am surprised looking at this that they were that cheap.
Today RIMM went as high as 57.32, and prices at that time were probably:
Apr 55 Call - $237 (Day high according to Yahoo)
Apr 55 Put - $5 (Day low according to Yahoo)
Straddle value ~ $230
Stock closed at $56.59
Apr 55 Call - $167 (Last according to Yahoo)
Apr 55 Put - $7 (Last according to Yahoo)
Straddle value ~ $170
Either way a profit. Of course, if these were held, now you would probably really be happy with RIMM at ~ $50.00 in After hours, meaning the puts should open ~$500 if all remains the same. Just to mention it, during the days High range, if a person had done a qty of this straddle, they could have sold half and left the other half as a free be for the earnings report.
Again, I am a bit shocked the Aprs were that cheap with 2 full days including an earnings report to go. I always seem to find this stuff too late though

. I'll be looking more now though.
JJacksET4