NASDAQ Halt: What Happened?
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In our modern world, where we're all hyper-sensitive to the relentless onslaught of cyber-attacks, any time a major site, service or piece of infrastructure stops working properly, the immediate speculation is that hackers are to blame.
On the afternoon of Thursday, Aug. 22, the NASDAQ exchange halted trading for nearly 4 hours. The exchange publicly identified the root cause of the issue as being related to trouble with the Unlisted Trading Privileges (UTP) Securities Information Processor (SIP) quote dissemination system.
What we don't know at this point is why there was trouble with the UTP SIP quote dissemination system. Was it just human or system error? Or was it the action of a malicious actor? -