Update: Here is what happened during the NYSE Trading suspension...
Following a 15 minute "technical issue" glitch, which forced the NYSE to halte trading from 10:50am to 11:05am, and which according to CNBC's Bob Pisani was again the result of a "software update", the NYSE is back online and running, and according to an update post on its Alerts site, "all systems are now functioning normally."
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The last time the NYSE halted all trading, the market was surprised by just how little impact the half-day disruption had. Well, we are about to find out if that is again the case because moments ago the NYSE reported that "NYSE Arca has identified a technical issue that will require a temporary suspension of trading at 10:50 ET. Trading is expected to resume at 11:05 ET. All orders on NYSE Arca will be cancelled."
NYSE advises customers with questions to contact the NYSE Trading Operations Desk at 1-212-896-2830.