4. Trade

Option expiration 20th July

Current price: 163.95 Up 0.93(0.57%)  => Call credit spread 168/170

168.00    SPY130720C00168000    0.18    0.07    0.16    0.19    14,873    78,093
170.00    SPY130720C00170000    0.04    0.00    0.04    0.06    3,264    162,190


1 call credit spread = 0.16 - 0.06 = 0.10$


10$ - 2$ (commision) = 8$

Blocked margin:       800$
Margin available:     1962$

Summary:
3x Call Credit Spread 167/169 (Expiration 20th & 26th July)
1x Call Credit Spread 168/170 (Expiration 20th July)