MA trading(gapup after er)

if ma gapped up after er, it usually can go up another 2 days.  On April 29, ma gapped up after er from 240 to 260, May 260 call was 8 in the early morning trading ( bot around 9 when it was trade around 264). it went up to 43 in next 2 days. Same thing happened in 2007(from 180 to 200)