05/31/2013：典型强势整理

05/31/2013：典型强势整理

尾盘直线跳水。

Mon Feb 25th出现过，Wedn May 1st也出现过。

Mon and Fri are sort of special because of weekly options, so are the 1st trading day and the last trading day of each month because of monthly options.

Fri May 31st is of dual specialty.