Nanex Research

Nanex 13-May-2014 ~ 15:49:41 Flash Crash Event

On May 13, 2014 at 15:49:41, at least 28 stocks suddenly jumped or dropped in price while 99 stocks had 50 or more trades during the one second period. During the same one second, $268 million worth of NMS stocks traded. Chart 2 below puts this in perspective.

List of 28 affected stocks with high activity and significant price movement during this event (trade count and percent change corresponding to a several second period):

Symbol #Trades %Change
NBR13069.64%
CNQ4753.73%
CXDC732.80%
AMT3311.61%
CAT6681.04%
CAH3330.58%
EA5250.50%
GRMN3350.42%
MRK3540.39%
EOG1470.33%
HAS442-0.49%
NAVI169-0.50%
ABC163-0.52%
VRNG99-0.63%
TWGP69-0.63%
PSX362-0.98%
LUV464-1.06%
DNB110-1.09%
PSA214-1.24%
XRX786-1.69%
DFS404-1.91%
OCR316-2.02%
WU565-2.20%
AVY339-3.13%
NDAQ1423-5.09%
MPC512-6.21%
LO581-6.29%
AOL861-11.07%
1.The 28 Stocks listed above.
Note that the stocks that went up in price started about 1/2 second before the stocks that dropped in price moved.


2. Value of NMS Stocks traded each second for each day over the last month (in $ millions).
The thick red line is May 13, 2014.


3. NDAQ.

4. AOL.

5. CNQ.

6. LO.

7. NBR.


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