The following are transactions that took place before and after the regular hours of trading which canceled out gains or losses of the regular hours of trading from the same day. The purpose of tracking this activity is to see if the trends or patterns can be established in the behavior of the related stocks or the general market. One conclusion that I've come to so far can be found in the following related articles:
Articles
Pre-Market Data
The following information demonstrates that low volume pre-market trading determines the closing price of high volume regular hour trading. In most instances, you can find traders are able to buy or sell large allotments of stock without affecting the pre-market price while small allotments can be seen to crush or inflate the price. This defies the basic economic principle of supply and demand affecting price.
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August 21, 2009
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August 20, 2009
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August 17, 2009
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August 10, 2009
After Hour Market Data
The following information demonstrates that low volume, after hour trading can undo or off-set all of the previous high volume regular hour trading. As mentioned before, you can find traders are able to buy or sell large allotments of stock without affecting the after hour price while small alloments can be seen to crush or inflate the price.
- August 10, 2009
- August 7, 2009
- August 6, 2009
- August 5, 2009
- August 4, 2009
- August 3, 2009
- August 29, 2008