Definition of 'VOLD - NYSE Volume Difference'
The VOLD (also $VOLD) is the difference between the up volume and down
volume on the NYSE. i.e. NYSE $UVOL minus $DVOL; the net up volume.
If you consider that VOLD is the net value between UVOL (up volume) and DVOL
(down volume) then you need to understand these two to understand VOLD.
UVOL or DVOL are a total of the volume on all stocks that are up or down in
price. Up or down is based on the previous session's closing price. The size
of the stock's price change is irrelevant. If the stock is up only $.01,
then its volume is grouped into the UVOL total. If that stock's price then
drops by $.02 it will be down $.01 and the day's volume for that stock will
now be grouped with the DVOL total.