$AMBA In September and October of 2015 I became the proud owner of 400 shares of AMBA after 4 put spreads went way in the money. I was assigned 200 @ $100.00 and 200 @ $85. I had received around $9000 from selling the good puts. I have been selling calls and have my cost basis down to 61.42. Today I rolled some 52.50 calls out to November 62.50. Pretty volatile stock. 52 week range is 33-125.