Monday, 9 July 2012

Graphs from the Flash Crash

Here's an amazing picture I found of the flash crash in motion. It's part of a pdf file that was used for a class at University of Maryland.


Pretty amazing to see it caught in motion like that.

The pdf file is a good read for anyone who doesn't have a real understanding of the causes of the flash crash from a technical perspective.

Here is an extract:


Why Did the Flash Crash Occur?
  • 􏰀  One account sold 75,000 contracts ($4 billlion, or about 1.5% of May 6 volume).
  • 􏰀  This was the largest sale by one account from January 1 to May 6, 2010.
  • 􏰀  This sale occurred precisely during the 20 minute period corresponding to the flash crash and V-shaped rebound.
  • 􏰀  The buy side of the limit order book was greatly depleted when the sale occurred, due to large price declines previously during the day.
  • 􏰀  This sale was executed rapidly compared to other sales of similar size.


You can find a copy of the original pdf here:

http://www.q-group.org/pdf/20110325_Kyle_Q-group_06.pdf

Christopher Carrion

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