Opened (Margin): MU January 21st 69/97.5 Short Strangle

... for a 2.22 credit.

Comments: Earnings announcement volatility contraction play with rank/implied at 79/59. 2.22 credit on buying power effect of 8.07 (on margin); 27.5% at max as a function of buying power effect; 13.8% at 50% max.

Will look to take profit at 50% max; manage sides on approaching worthless/side test.