Friday, 2/26/2021 (11:45 am, PT) <--- Expiration Day
buy +1 Feb 26, 2021 3895 call at $0.17 (prob ITM 1.78%)
sell -1 Feb 26, 2021 3855 call at $2.37 (prob ITM 17.61%)
net credit: $2.20 x 1 x 100 = $220 (max profit)
margin: $3767
Friday, 2/26/2021 (12:54 pm, PT) <--- 70 minutes later
buy back 3855 call at $0.10
let long call expire "worthless"
Note: SPX closed at 3811.15 at 1 pm, PT (settlement)
NET PROFIT: $206.46 (in 70 minutes)
ROC: 5.48% (1 hour) = 2000% (annualized)
