NASDAQ is an American stock exchange that is located in New York City. On August 22, 2013, NASDAQ had a three-hour trading halt because of technical problems.
 
The glitch was immediately called “NASDARK” (NASDAQ + dark).
     
 
Wikipedia: NASDAQ
The NASDAQ Stock Market, commonly known as the NASDAQ, is an American stock exchange. “NASDAQ” originally stood for National Association of Securities Dealers Automated Quotations. It is the second-largest stock market comparing to official stock exchanges by market capitalization in the world, after the New York Stock Exchange. The exchange platform is owned by NASDAQ OMX Group, which also owns the OMX stock market network.
 
Twitter
D‏
@dschorrnyc  
#NASdunked #NASdark
11:08 AM - 22 Aug 13
 
Twitter
Timothy Connolly CFA‏
@SconsetCapital  
NASDARK!!! 😊 RT @hblodget: Um, NASDAQ, how about some info on what the heck happened?
12:44 PM - 22 Aug 13
 
Zero Hedge
Market Soars On NASDARK Day
Submitted by Tyler Durden on 08/22/2013 16:10 -0400
The Dow has its best day since August 1st but its the NASDARK that takes the biscuit with a 1.4% gain - its best day in 6 weeks. S&P 500 futures ramped all the way to recent highs, snagging stops all the way to its 50DMA once again. Trannies were the big short-squeeze high-beta muppet-killers today though +2%!!
   
BlogZone Australia
August 23, 2013
Stocks end up; glitch-free day for Nasdaq
Just over three hours ago, when discussing the NASDARK 3 hour trading halt, we asked: “what was it about Apple’s locked Bid and/or Ask that caused the NASDAQ freak out, and was all the Tape C trouble at the NASDAQ
 
NEW YORK, Aug 23 (Reuters) – U.S. stock index futures were little changed on Friday, a day after the Nasdaq stock exchange suffered a historic trading halt of roughly three hours as a result of technical problems. * Trading in thousands of U.S. stocks
 
The latest disruption at Nasdaq – the longest trading halt in the floor’s history and also the biggest one since Hurricane Sandy last year – has again raised questions over potential dangers of the super-fast electronic trading
 
The outage — caused by what Nasdaq called a “connectivity issue” — frustrated traders and investors who couldn’t buy or sell stocks due to the freeze. It’s the latest in a string of problems with the Nasdaq and other U.S. markets at a time when
   
Zero Hedge
The Quote Blasts That Killed The NASDARK Caught On Tape
Submitted by Tyler Durden on 08/27/2013 08:43 -0400
With AAPL plunging below the critical $500 level and equity markets slumping this morning, it seems appropriate to reflect once again on the cause of last week’s NASDARK debacle. As Nanex so obviously points out in these charts, digging into market data before the Nasdaq blackout at 12:20 EDT on August 22, 2013, we came across several significant periods of extremely high quote volumes. By plotting the number of messages for each of the 6 multicast lines used by the Tape C SIP (Securities Information Processor), we discovered the quote blasts map directly to individual multicast lines. The ‘line’ carrying AAPL’s ticker saw the largest and most egregious quote volumes (spamming perhaps) that eventualy ovehwlemed NASDARK’s creeking infrastructure.