Nanex Research

Nanex ~ 19-Dec-2012 ~ Ross Sparkles 2.7%

The stock of Ross Stores Inc (symbol ROST) has a market cap of 12 billion. About 3 second after market open (9:30 EST) on December 19, 2012, the stock rocketed 2.7% in about 2/10ths of a second on 177 trades (50,000 shares); 3 minutes later, the price came all the way back. For a brief moment, the market valued Ross 320 million higher, then changed its mind.


1. ROST - 1 second interval chart showing trades color coded by exchange.



2. ROST - 1 second interval chart showing bids and asks color coded by exchange.



3. ROST - 25 millisecond interval chart showing trades color coded by exchange.



4. ROST - 1 millisecond interval chart showing trades color coded by exchange. Chart shows 1 second of time.




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