Out of MTU Nov 16 '13 $7.50 Calls @ $0.50 + Into MTU Aug 17 '13 $7.50 Calls @ $0.40...

+$0.15 per share gain, or +42.85% gross profits...

Same sort of situation as NMR calls... got out of same strike calls with later expiry date at a profit and got into earlier expiry date same strike calls at slightly higher entry price, locking in a large part of the gains whilst keeping some calls to ride in case of further momentum...