I am saying this because:
some one is buying only 100 shares of bidding price for many shares.,That will drag down the indexes.,
It appears to me this is done purposely and also the heavy weights are too on negative side.
If you can think why is this happening, one answer could be some are trying to drag the market down to buy or perhaps they will do the other way around at the end of the day and will sell.
This is opinion only