Quote from quannabe:
Anyone able to chart constant volume bars for more than 40 days? My third party app is limited to 40 days of data.
The only data vendors with accurate volume bar charts are E-signal and Barchart, and I know you've got e-signal.
You'll have to beg for data from somebody, or network with somebody with a large database and especially dump any app that's not multicharts right now.