Established Bull Put Credit Spreads

Established paper trade with a pair of put credit spreads:

1. IWM at $71.80
    Sell put IWM 64 @ .18 expires on 9/23
    Buy put IWM 63 @ .09 expires on 9/23

    Credit: $.09
    ROI before commission: .09/1 = 9%

2. SPY at $121.09
    Sell put SPY 110 @ .19 expires on 9/23
    Buy put SPY 108 @ .13 expires on 9/23

    Credit: $ .06
    ROI before commission: .06/2 = 3%