The fair price, in motion.

The VWAP — volume-weighted average price — is the average price actually paid in the session, where every trade counts in proportion to its size. It is not an indicator someone invented to predict anything: it is an accounting fact. If you bought the whole session, the VWAP is roughly what you paid. That is why it matters.

Why every desk watches it

Institutions that execute large orders are judged against the VWAP: buy below it and the execution was good; buy above it and someone asks why. That turns the VWAP into a benchmark with real money behind it — which is exactly what gives it gravity. Above the session VWAP, the average buyer is in profit and tends to defend; below it, the average buyer is trapped. One line, and you know how the average participant is doing.

The bands: how stretched is price?

VWAP bands measure the distance between price and the average, in units of the session's own volatility. Near the VWAP, price is at consensus; at the outer bands, it is stretched — far from what the average participant paid. Stretched does not mean reversal: in a trend day, price can ride the upper band for hours. The band tells you the tension; the day type from Season 2 tells you whether that tension tends to snap back or keep pulling.

Horizons: one VWAP per timeframe that matters

The session VWAP resets every day — but weekly, monthly, quarterly and yearly VWAPs exist for the same reason, each watched by participants operating at that scale. The longer the horizon, the slower the line and the bigger the decisions anchored to it. And yesterday's finished VWAP does not disappear: frozen as a reference, it often keeps acting as a magnet and a test the following day.

The VWAP is today's fair price. But yesterday also voted — and it left a map. That is next.