Volume Profile
A histogram plotted on the price axis showing how much volume traded at each price level over a period, revealing the prices where the most business was done rather than when.
Where a normal volume bar shows volume per time period, a volume profile (also called volume-by-price) rotates the question onto the price axis: it divides the chosen range into horizontal price bins and sums the volume that traded within each. The result is a sideways histogram whose longest bars mark the most heavily traded prices. The single highest-volume bin is the Point of Control (POC); the contiguous band holding about 70 percent of volume is the Value Area, bounded by the Value Area High and Low.
High-volume nodes are prices where buyers and sellers transacted heavily and effectively agreed on value — they act as magnets and as strong support or resistance because so many positions sit there. Low-volume nodes are prices the market passed through quickly; price tends to move fast across them and they offer weak support. The POC and Value Area edges are common reversion targets and decision points. Reading the shape tells you where the market's fair-value consensus formed and where price is merely transiting.
Volume profile is among the more robust technical tools because it is built on transacted volume — objective fact about where business occurred — rather than a price formula that can be curve-fit. Its levels tend to hold better than pivot-derived support and resistance for that reason. Its main caveats are data quality and resolution: on daily OHLCV the single per-bar volume must be approximated across the bar's range, blurring the profile, so it is far sharper on intraday or tick data. It tells you where, never when — it is a context map, not a timing signal, and is most powerful combined with a trigger that fires as price reaches a key node.
This definition is for informational and educational purposes only. Nothing on Finance Compass constitutes financial, investment, or trading advice. Always conduct your own research and consult a qualified professional before making financial decisions.