I keep seeing VWAP plotted on other traders’ charts, and people say price is “above VWAP” or “below VWAP” like it means something important. I get that it’s some kind of average, but I don’t understand why big funds and scalpers both seem to care about the same line. Can you explain what it actually measures and how traders use it to time entries or judge whether a price is fair during the day?
1 Answer
VWAP stands for volume-weighted average price. Through a single session it tracks the average price at which a security has changed hands, with each trade weighted by its size. Mechanically, a platform multiplies price by volume for each interval, keeps a running sum, and divides by cumulative volume. Because it accumulates from the opening bell and resets the next morning, VWAP is an intraday, single-day reference that grows steadier as the day’s volume builds.
Institutions watch VWAP because it is an execution benchmark. A desk filling a large order judges the result against the day’s VWAP: buying below it or selling above it means beating the volume-weighted average price everyone paid. Execution algorithms deliberately slice orders to track VWAP, spreading fills across time to reduce market impact.
Day traders treat VWAP as a rough proxy for intraday fair value and a gauge of who is in control. Price holding above VWAP suggests buyers dominate; sustained trade below suggests sellers do. Some enter on pullbacks toward VWAP in the direction of the trend, or fade stretched moves back to it, partly because so many participants and algorithms reference the same line. That pull is a tendency, not a rule: on strong-trend or gap days price can stay extended from VWAP the whole session and never return.
VWAP is descriptive, not predictive. It lags because it reflects trades already done, whipsaws early when little volume has accumulated, and says nothing by itself about news or longer-term value.
SML NewsAugust 30, 2026Sign in to answer this question.
