Feb 17 2017 closed at 10.00 - max gain achieved (long put exercised for +$1.00, short put and both calls expire worthless). Total return 400%.
Reference 2/2/17, stock 12.29 Short $15 call, +.10 credit Long $14 call, +.15 debit Long $11 put, +.30 debit Short $10 put, +.15 credit Total cost: .20 net debit