VWAP explained: the line institutions benchmark against
What volume-weighted average price measures, why it resets every day, and how day traders use it.
VWAP, the volume-weighted average price, is the average price paid for a stock during the session, with each price weighted by how much traded there.
How it is calculated
VWAP = cumulative (price × volume) ÷ cumulative volume, starting at the session open. Many charting tools use the typical price of each bar, (high + low + close) ÷ 3, as the price. Standard VWAP resets every trading day.
Why it matters
Large funds often measure their execution against VWAP. Buying below it means you paid less than the average participant that day. That makes VWAP a reference many big orders care about, which is why price often reacts around it.
How traders use it
- Trend read: price holding above a rising VWAP suggests buyers are in control for the session; below a falling VWAP, sellers.
- Pullback area: in a trending day, a return to VWAP can be where trend traders look to join.
- Reclaim or loss: a decisive move back above or below VWAP can mark a shift in who is in control.
Limits
- VWAP lags more as the day goes on, because each new bar is a smaller share of total volume.
- It says little in the first minutes of the session, when there is not much volume behind it.
- Anchored VWAP, started from an event such as earnings or a major low, can be more useful for multi-day views.
VWAP is a reference, not a signal by itself. Combine it with levels and context.
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Educational, not financial advice.
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