What is Volume in the Stock Market?
Volume in the stock market refers to the total number of shares traded in a specific period, usually one trading day. High volume means many shares are changing hands; low volume means fewer transactions. Volume is one of the most important indicators in technical analysis because it confirms price movements and helps traders understand the strength of a trend.
Why Volume Matters
Price moves are more meaningful when accompanied by high volume. For example:
- A stock breaking out above resistance on high volume suggests genuine buying interest and a strong trend
- The same breakout on low volume may be a false signal or a temporary move with little conviction
- A price fall on high volume indicates strong selling pressure; a fall on low volume may just be a temporary pullback
How to Read Volume on Charts
Volume is typically displayed as a bar chart at the bottom of a price chart. Green volume bars represent days when the stock closed higher; red bars represent days when it closed lower. Compare current volume to the 20-day average volume to determine if volume is unusually high or low.
Volume Indicators Used by Traders
- On-Balance Volume (OBV): Accumulates volume on up days and subtracts on down days. Rising OBV with rising price confirms an uptrend.
- Volume Moving Average: Shows the average daily volume over a period, helping identify days with unusually high or low activity.
- VWAP (Volume Weighted Average Price): Average price weighted by volume for the day. Widely used by intraday traders and institutions.
Volume and Liquidity
Stocks with consistently high daily volume are easier to trade. You can enter and exit large positions without significantly affecting the price. Stocks with very low daily volume (less than 1 to 2 lakh shares) have wider bid-ask spreads and are more susceptible to price manipulation.
Volume in NSE vs BSE
NSE generally shows higher trading volumes for most large cap stocks compared to BSE. When comparing volume data, use NSE figures for the most representative picture of market interest in Indian equities.
Key Takeaway
Volume confirms price movements and reveals the conviction behind trends. High-volume breakouts and high-volume support bounces are stronger signals than those on low volume. Incorporate volume analysis into every trade decision. Use the Lemonn app's charts to monitor volume data alongside price for more reliable signals.
