Laissez Faire originally asked,
"Assuming that volume analysis of various kinds is useful in technical analysis - would a market like index futures be any different than other markets like for instance commodities? Or single stocks?"
The answer is; yes and no or same same but different. Certain aspects of volume will be consistent across all markets and others will not. There is total volume, there is delta-bid/ask volume, there is the volume of larger traders, iceberged volume, hft volume, there is the speed of volume, there is the range created by the volume, the price level volume occurs, the time of day when it occurs - news or report generated, etc. It depends on how far down the rabbit hole you want or have resources to go.
Scapathagos had a problem with Laissez Faire's assumption in the original question (is volume necessary to trade profitably?) and has ended up fueling a nice discussion on how others use volume. I think there are numerous traders like Scataphagos that do not use volume and are profitable just using price action. Other's like Xela swear by it. Then there are those who can trade an instrument without using its price action or volume. Everyone's trading style is different and thus anyone who lasts in this business ultimately settles into a certain style of trading and certain instruments that fit their style.
Since Xela can't post her charts because of signing a NCNDA I'll post one using volume bars for her
Instrument: NQ
Bar Segment: 3000V
Event Trigger: Speed Threshold of traded volume
Each event occurred at a turning point in the market or low risk entry point.
View attachment 180626
Supply and demand is all there is, everything else is just a giver of confidence.
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