I was shocked to see my limit order at 201.5 executed today. The daily chart reveals why. Some institution must have dumped shares at the open, I guess, as the price plummeted from the 203 range to near 201, but the share price quickly recovered. I see a similar magnitude 2 point 'flash' drop occurred right after the open on 9/14 between the 208 to 206 level. Well, hopefully that is the end of that!