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What gets me is how mysterious it sounds, when there is a ton of obvious troubleshooting that should have happened... and probably did but I can't find reported anywhere.

Hedge fund places order. NASDAQ returns an order id.

Did that order show up in the market data feed?

Did they see that order get hit on the market data side?

Did they get an order accept?

Did they try to cancel?

What happened when they tried to cancel?

What actually happened? Did the orders really just get accepted and then go into a black hole?



Black hole sounds about right. Apparently NASDAQ's systems went completely quiet for 17 seconds centered around the 11:30am open of Facebook:

http://www.nanex.net/aqck/3122.html


Looks crooked as anything.


Do you think NASDAQ shut their computers down? Were automated traders crippling the system? Perhaps something else?




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