Charting and Studies User Guide - CQG.com

TFlow On Balance Volume (TFOBV)
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TFlow On Balance Volume is the running sum of the difference between bid and ask volume for
each TFlow bar. The starting point of this sum is selected via study parameters. This study only
works when applied to TFlow bars. It works with aggregated TFlow bars as well.
This study provides more complete information compared to the on balance volume (OBV)
study applied to standard time-based price bars. The classic OBV study is the running sum of
total volume traded for the price bar. The current bar’s volume is added to the previous value if
the bar closes higher than the previous bar and the total traded volume is subtracted if the bar
closes lower than the previous bar. You don’t know how much of the traded volume was
actually buying or selling volume. TFlow OBV provides the actual measure of difference between
buying and selling volume in the calculation.
TFlow On Balance Volume Parameters
• Display
• Start Time: Select number of bars back, days back, or a specific time.
Charting and Studies User Guide