You can get more technical details from nanex: http://www.nanex.net/aqck2/3522.html http://www.nanex.net/aqck2/3522.html Essentially, they were buying high and

You can get more technical details from nanex: http://www.nanex.net/aqck2/3522.html http://www.nanex.net/aqck2/3522.html Essentially, they were buying high and selling low. Many times a second.