VV provides the %Vol for each stock that compares the EOD volume for that stock to its 50 day moving average of volume but this is strictly an EOD value. Real-Time needs its equivalent. I call it the VIVA , which stands for Virtual Intraday Volume Assessment.. This would be a new field, for Real Time users only, that tracked that fraction of the 50 day SMA for each stock according to the fraction of the trading day that had passed up to that time. For example, Northrop (NOC) trades about 13 million shares each day and there are 390 minutes or 13 half-hour segments in each market day. That means that NOC, on an average day, would trade about 1 million shares per half hour. So, if at 10:00 am, it has already traded 2.5 million shares, something strange is at work! There are different ways this could be implemented; on a minute-by-minute update or in half hour steps, like in my example. It could be a simple implied volume number or reported as a percentage similar to the %Vol. This tool would greatly improve Real-Time by making it possible to spot over-heated stocks early in the trading day. Real-Time gives you real time price data and real time volume data but no tools to easily assess that volume data as the day goes by.