Dunkin' Donuts keeps its doors open for law enforcement during the Boston lockdown. - 

Ticker symbol DNKN picked up a percent and a bit today. Analysts will tell you it was because business at Dunkin' Donuts is pretty good.

I, however, would like to think it's because Wall Street knows a good deed when it sees it.

In the middle of the insanity in Boston today came this news: That Dunkin' Donuts outlets would stay open despite the lockdown order to make sure police and first responders would be taken care of.

Make all the jokes you like about cops and donuts, but you gotta be thankful for 'em today.

Follow Kai Ryssdal at @kairyssdal