VWAP Explained on TradingView

Walk onto any professional intraday trading desk and there’s a strong chance VWAP is plotted on nearly every chart in the room. This lesson explains what VWAP actually calculates, why it resets each day, and why it’s treated as such a common intraday reference point.

What Is VWAP?

VWAP stands for Volume Weighted Average Price. It calculates the average price at which a stock, index, or contract has traded so far during the current session - but unlike a plain average, it weights each price level by how much volume traded there. A price level where a huge number of shares changed hands counts more heavily in the calculation than a price level only briefly touched on low volume.

The result is plotted as a single line, directly on the price chart (making it an overlay indicator, in the language of Lesson 18), showing the running volume-weighted average price from the market’s open up to the current moment.

Why VWAP Resets Every Trading Day

Unlike an SMA or EMA, which rolls forward continuously across many days, VWAP is built specifically as an intraday tool - it starts calculating fresh from each day’s market open and accumulates through the session, resetting completely at the start of the next trading day. This design reflects VWAP’s purpose: describing where today’s activity has actually concentrated, not blending today’s numbers together with last week’s.

   Monday's VWAP        Tuesday's VWAP        Wednesday's VWAP
   9:15 ──────► 3:30    9:15 ──────► 3:30    9:15 ──────► 3:30
   (resets)              (resets)              (resets)

On an intraday chart, VWAP typically won’t display a value before the market opens for the day, since there’s no session volume yet to weight it with.

Why Traders Treat VWAP as a Fair-Value Reference

Because VWAP reflects where actual trading volume has concentrated during the session, many intraday traders and institutional desks use it as a rough, real-time benchmark for the day’s “typical” price so far. A large institutional order, for instance, is often too big to execute all at once without moving the market - so some institutions compare their own execution price against VWAP to gauge whether their order was filled, on average, favourably relative to the rest of the session’s activity.

For a retail intraday trader watching Nifty 50 or a liquid stock like Reliance Industries, VWAP offers a similar kind of reference: a sense of whether the current price sits above or below where most of today’s volume has actually traded.

How VWAP Differs From a Moving Average

Both VWAP and a moving average (Lesson 19) plot a single line describing “average price” in some sense, but they differ in two important ways:

• Volume weighting - VWAP incorporates how much volume traded at each price; a plain SMA or EMA uses only price.
• Reset behaviour - VWAP restarts every session; a moving average simply keeps rolling forward across as many periods as it’s set to cover, day after day.

Adding VWAP on TradingView

1. Open an intraday chart (such as a 5-minute or 15-minute timeframe) for the instrument you want to study.
2. Click “Indicators,” search “VWAP,” and select it from the list.
3. VWAP appears as a line directly on the price chart, starting from the beginning of the current session.
4. Its settings allow adjusting bands (standard deviation bands around VWAP, similar in spirit to Bollinger Bands, covered in Lesson 23) if a trader wants that additional detail.

Real-Life Example: Watching VWAP During a Bank Nifty Session

Suppose a trader adds VWAP to a 15-minute Bank Nifty chart at market open. Through the morning, price trades above VWAP during a steady buying phase, then dips slightly below it around midday before recovering in the afternoon. Rather than treating each touch of the VWAP line as an automatic decision point, the trader simply notes it as one more piece of context - alongside support and resistance levels and the day’s overall volume - when thinking through their intraday plan. By the close, VWAP has accumulated the entire session’s volume-weighted average; the next morning, it starts over completely fresh.

Analogy: The Average Price at a Busy Vegetable Market

Imagine a busy vegetable market where tomato prices shift slightly through the day - a little higher at the crowded morning rush, a little lower during a quiet afternoon lull. If you wanted to know the “real” average price for the day, simply averaging the morning price and the afternoon price equally would be misleading if far more kilograms sold in the morning rush than in the quiet afternoon. VWAP is like weighting that average by how many kilograms actually sold at each price - giving a more honest sense of where most of the day’s actual business happened, rather than treating every moment of the day as equally important.

Common Beginner Mistakes

• Applying VWAP to daily or weekly charts and expecting the same significance it has intraday. VWAP is built around a single session; its meaning changes on longer timeframes.
• Treating a price crossing VWAP as an automatic trading decision, rather than one reference point among several.
• Confusing VWAP with a moving average. They look similar as a line on the chart, but VWAP incorporates volume and resets daily, while a typical moving average does neither.
• Expecting VWAP to have a value before the market opens. It only begins accumulating once the session’s first trades occur.

Practical Tips

• Add VWAP specifically to intraday charts, not daily or weekly ones, to see it behave as intended.
• Watch how VWAP behaves across a few different sessions on a liquid instrument like Nifty 50 before drawing any conclusions about how you personally want to use it.
• Remember that VWAP, like every indicator so far, describes the current and past session - it’s a reference point, not a forecast of the rest of the day.

Conclusion

VWAP takes the moving-average idea from the last lesson and adapts it specifically for a single trading session, weighting price by actual volume rather than treating every period equally. With this session-based reference point covered, the next lesson turns to RSI - a momentum oscillator that measures how fast and how far price has recently moved, rather than where its average currently sits.