On Nov. 10th the FAS did a 1-5 stock split. What is interesting to me is that at least via Yahoo http://finance.yahoo.com/q/hp?s=FAS+Historical+Prices volume remained the same or increased. I would have expected it to fall by a substantial amount. Any insight into this would be appreciated.
Lots of times it takes sites a while to calculate the split-adjusted numbers. when I was working there it was part of my job to reach out to places like Yahoo & Google and make sure they stayed on top of this stuff... You get what you pay for. Bloomberg & Reuters are spot-on. Give it a few days.
I actually think the volume being reported on Yahoo is correct. What I am puzzled by is that with a reverse 1-5 split - stock went from $10 to $50 - since shares are 5x higher in price - you would anticipate that volume would decline by 5x. This is not the case.