Interpretation of volume as it pertains to share/contracts traded. How is volume recorded/stamped/represented when shown on a volume histogram at the bottom of a chart, or in the case of CV bars on a chart? Consider a bar of 1000. What does this imply? Is this a count of all buys and sells combined (traded) or as individual buys and sells. Is this 800 buys, and 200 sells or is it 500 buys and 500 sells?