buy +3 May 9 2018 2720 calls at $0.10
sell -3 May 9 2018 2705 calls at $1.20
- net credit (max profit): $1.10 x 3 x 100 = $330
- short call (2705) delta: 23
- expiration: 1 pm (PT)
- margin: $4500
Wed. 5/9/2018 (12:38:07 pm, PT)
buy back short calls (2705) at $0.05 to remove the risk
PROFIT: $315