Opening: QQQ May 27th 315/380 Short Strangle

... for a 6.20 credit.

Comments: Selling 16 delta-ish strikes on both sides after closing out my previous QQQ position for a small winner. 6.20 credit on buying power effect of 41.91 (on margin); 14.8% ROC at max; 7.4% ROC at 50% max. Delta/theta .37/17.