Today selling is attributed to the monthly scare-of-interest -rise further accentuated by the traders. BX is a traders tool.
Have to own by July 31. That is the ex div. date.
The cap gain sellers sell a couple of days before ex div. to gain the div. run.
Today's selling reflects disappointment in the results and the chronic fear of rising rates.
All they have to do is cross the border illegally and they will be taken care of.