SHARES STRONGLY UP/DOWN this week 19/12/05 (Master RSI)

HCEG 21.25 -22p -1.25p

The stock is now on SETS
The market it seems wants the shares down at the moment, large buying this morning, but not "AT" trades after buys of 684K and sells of 204K ( 5 hours of trading and 24 trades ) and the shares were down to 22.50 - 23p

Then 1 hour later a couple 10K "AT" come along and the shares go down, though there was buying on the market.

It does makes me think that: I do not understand how SETS works or the market is being manipulated
           No SETS is also