Out of AAPL Aug 17 '13 $505 Calls @ $2.77 + Into AAPL Aug 23 '13 $525 Calls @ $1.87...

Gain of $1.19 per share, or +75% on $505 calls...

Got into higher strike calls that expire one week later as I saw the $505s were being sold - perhaps part of people doing spreads...