VWAP
VWAP (Volume Weighted Average Price) is the average price at which a security has traded throughout the day, weighted by the volume transacted at each price level. On NSE, VWAP is a key reference for institutional order execution and is widely monitored by intraday traders of Nifty futures and large-cap stocks.
VWAP is calculated by multiplying the price of each transaction by the volume traded at that price, summing these across all transactions, and dividing by total volume. This produces a price that reflects where the majority of the day's trading activity occurred in value terms. Unlike a simple average of prices, VWAP weights heavier-volume transactions more, making it a more representative measure of the 'fair value' over the session.
For institutional participants on NSE — mutual funds, FIIs, insurance companies — VWAP served as a benchmark for evaluating execution quality. A fund that executed a large equity purchase at a price below the day's VWAP was considered to have achieved above-average execution quality, having acquired shares at prices where less than average aggregate trading had occurred above them. SEBI and internal compliance frameworks often used VWAP as an execution benchmark.
Intraday traders on NSE futures and options markets used VWAP as a dynamic support and resistance reference. When Nifty futures or a large-cap stock traded above VWAP during the session, this was interpreted as intraday bullish context; trading below VWAP was interpreted as bearish intraday context. Reclaiming VWAP after a dip or failing to hold VWAP after a rally were observations used to contextualise intraday price behaviour.
VWAP resets at the beginning of each trading session, making it relevant only for intraday analysis. Anchored VWAP — where the VWAP is calculated from a specific prior date or event rather than the session open — was used by some practitioners to assess longer-term price relative to volume-weighted cost basis since a significant market event.
A misconception is that trading above VWAP is inherently bullish and below VWAP is inherently bearish as a predictive statement. VWAP position is a contextual observation, not a predictor. Instruments can trade below VWAP for extended periods in bear markets and above VWAP in bull markets without a mean-reversion to VWAP, depending on broader market conditions.