Trade 1 (10:14:53 am, PT)
sell -4 August 20, 2018 2850 puts at $0.65
buy +4 August 20, 2018 2825 puts at $0.05
Stats:
- delta for short put (2850): 15
- net credit (max profit): $0.60 x 4 x 100 = $240
- SPX trading at 2857
Trade 2 (12:31:12 pm, PT)
buy back short puts (2850) at $0.05
PROFIT: $220 (in 2.25 hours)