Mostly: Classical

[lvlamb]

site is reported down
http://www.siliconinvestor.com/stocktalk/msg.gsp?msgid=20444854

Who knows, they must be scanning the message boards. LOL.

"Manipulation".
Have another theory: trading programs.
You can study crowd behaviour, make statistics on the most popular indicators TAers use and how they trade on them, include some markets idiosynchrasies, scan message boards, test .... whatever, run some "what if" scenarios and determine for each what little pitch you should give to the tend and chose the best risk/reward action in a couple of micro-seconds.

A couple of micro-seconds later, the program shoots the order.

I know this is the way I would trade if I had the computer power and skills.
I also remember trading the traders pivots on the spoos with some success (I was not the only one), and one day all my trades started to be losers.
Do I call this manipulation? No, when a system starts to work, the industry will use it against you: fair deal.

Sometimes, trading programs which in the end all start using the same algorythms fight against eachother. <vbg>

I have no other explanation of the sudden spike in Nyse reported program trading activity for the week June 21-25
http://www.nyse.com/marketinfo/p1020656068262.html?displayPage=%2Fmarketinfo%2FProgramTrading.html

Hence, I don't trade in their timeframes.<ggg>