Large caps distinctively negative today. It is the Q stocks with higher B being played up today. It would hard to believe that Naz traders would much on the table if weakness continues today. It seems that an afternoon reversal would seal shorts fate since it would look like some broadening of the market advance as leaders will be hard pressed to hang on to the recent gains.
Last but not least volume will always be misleading because after WCOM is delisted you will always have other stocks like Q and WMB to play with even if they are on NYSE.