What is VWAP? The volume-weighted average price explained
VWAP — the Volume-Weighted Average Price — is the single most important intraday reference for many professional traders. It's the average price of the session weighted by volume, which makes it the benchmark large players measure their own fills against. It's also the anchor of one of our own strategies.
Unlike a simple moving average, VWAP weights each price by the volume traded there, so it reflects where the bulk of the session's business actually happened. Institutions use it as an execution benchmark — buying below VWAP or selling above it is, by definition, doing better than the average participant. Because so much capital references it, VWAP often behaves like a magnet and a dynamic support/resistance line intraday.
Standard-deviation bands and mean reversion
Plotting bands at one, two, and three standard deviations from VWAP turns it into a map of how stretched price is. When price extends far above or below VWAP, it's statistically far from the session's volume-weighted fair value — and tends, more often than not, to revert toward it. That tendency is the basis of a probabilistic mean-reversion edge.
Why VWAP suits systematic trading
VWAP is objective and identical for everyone, which makes it ideal for rules: “price is N standard deviations from VWAP and showing rejection” is a precise, testable condition, not a feeling. The discretionary trader hesitates to fade a move that's stretched (it feels scary to sell strength); a system simply takes the defined setup.
VWAP in our own strategy
This isn't theoretical for us: our Anchor strategy is a systematic VWAP mean-reversion model — it waits for price to extend to a defined number of standard deviations from session VWAP, looks for rejection, and scales targets back toward the mean. The edge lives in applying that rule identically every session, which is precisely why a system that never gets bored can trade it where a human's nerve would fail.
VWAP is the volume-weighted fair-value line institutions trade around, resetting each session. Stretched far from it, price tends to revert — the basis of mean reversion, and the anchor of our Anchor strategy.
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Get the PlaybookEducational content, not financial advice. No indicator predicts the future or guarantees profits; indicators describe past and present price behaviour only. All strategy figures referenced are hypothetical, from backtested data and Monte Carlo simulation; past and simulated performance does not guarantee future results. Trading involves substantial risk of loss.