The Dow Jones Industrial Average is down over 1% so far today, with stocks sliding as One Direction member Zayn Malik announced his departure from the group.
The Dow is an antiquated and largely useless price-weighted average of 30 large American companies. It became slightly less useless earlier this month when Apple was added to the index, replacing AT&T.
As you can see below, the Dow began falling prior to the announcement of Zayn's departure, suggesting some traders may have been tipped off early.