Volume is one of the most powerful indicators in technical analysis. High-volume stocks often lead to big price movements, strong trends, and profitable opportunities. However, manually checking volume across the entire market is impossible. This is where a stock market scanner becomes essential. It automatically identifies high-volume stocks and highlights them in real time.

Why High Volume Matters

High volume indicates strong activity, usually driven by institutions, big traders, or major market events. High volume can signal:

• Trend beginning or reversal

• Breakout confirmation

• Increased liquidity

• Strong price momentum

• Market interest in the stock

Traders rely on high volume to validate signals and avoid weak trades.

How Stock Market Scanners Detect High Volume

1. Real-Time Volume Tracking

The scanner tracks live volume tick-by-tick.
As soon as volume spikes, it triggers alerts.

2. Relative Volume (RVOL)

Relative Volume compares current volume to historical averages.
A common threshold:

• RVOL > 2 means the stock is trading double its usual activity.

3. Comparing to Moving Average Volume

Scanners check whether current volume is greater than the 10-day, 20-day, or 50-day average.

4. Volume Spikes per Candle

A stock market scanner can detect sudden bursts of volume on a single candle, signaling abrupt interest.

5. Price + Volume Logic

Best scanners combine price movement with volume:

• Rising price + rising volume = bullish strength

• Falling price + rising volume = bearish pressure

Final Thoughts

A stock market scanner is the fastest way to catch high-volume stocks as they emerge. Volume is a key indicator for intraday and swing traders, and a scanner ensures you never miss a major move caused by sudden institutional activity.