If it were a Dow systems glitch then I wouldn’t expect all the other indices (4Q,R2k, S&P, etc.) to all show the same pothole at the same time. But they do so I call BS on that. Besides, QQQ did 3B in volume today without a real problem and supposedly the Dow clearinghouse has more CPU cycles and more network bandwidth available.

There’s a divot in all their charts within a few moments of each other. THAT looks like a robot trader that barfed sell orders onto the floor. The major indices are not that tightly coupled.

We’ll see over the next week or so if this is the much-anticipated unwinding.