new york stock exchange traderREUTERS/Brendan McDermid

NASDAQ froze trading today for three hours due to a technical glitch.

Trades halted due to an issue with something called UTP SIP quote dissemination, reminding us all that life is so fragile.

We knew that the NASDAQ froze because of the faulty SIP. We knew that regulators were coordinating to figure out what went wrong. And we knew that trading eventually resumed.

So what did NASDAQ have to say for itself in the new explanation? Not much. Check out their press release (via CNBC):






The crucial question of what caused this remains unanswered.