I do not know of any SW offhand to do this but the calculation is not difficult. For example, if the market has been open 2 hours and your stock has traded 1,000,000 shares, do the following:
1,000,000 / 2 = 500,000 ; 500,000 X 6.5 (hours the market is open) = 3,250,000 shares for the day...