Quote from nassau:
supply / demand ..?...it comes down to math ..
day traders buy/sell/short as a result of their perception..
an example is today...mrvl..drops 3dollars then rallies 3plus to close at a new high for the day...
did the value of the stock really change..? ..the funds just took out all the little guys...math...and they do take advantage of news...although it is acknowledged that the brokers have orders to buy / sell today 1million of x...
portfolio managers are long term..18months -3yrs..
block traders ..100k shares is not really that big..
the market markers create the liquidity...even from themselves...to create the sceanario of supply and demand of a perceived stock value/price.
News does make a difference..todays news ? squawk box etc say..market discounted the news...always an excuse / explanation...
I can tell you that when Bush fired two officals in Dec 3years ago...He caused the usd/euro to drop ....big time....
w
Major News does play a role in moving the markets short term.
If you went short U.S. Bonds and Long EUR right after Bernankes appointment announcement you made some decent change.