Direct feed clock.

The Dow today:

You see today. Yep, markets gone up.

There seem to be loads of good reasons here: http://moneymorning.com/2015/08/10/dow-jones-industrial-average-moving-today-on-these-top-stories-2/

However, I wonder if it is actually because of this (NYSE's 'direct feed clock' from a few days ago, Thursday or something):

Not sure what a 'direct feed clock' is. But what it sounds like to me is the thing that gives a feed to the marketers of the values of the stock.