EMV — Ease of Movement

Overview

Ease of Movement relates price change to volume, showing how easily price is moving — large price change on low volume produces high EMV readings, while small moves on heavy volume produce low readings. It is a unique perspective on market efficiency useful in stocks and forex. Add EMV to your trading strategies alongside other volume tools from our indicator guide library.

How It Works

EMV = Distance Moved / Box Ratio. Distance Moved = ((High + Low) / 2 today − (High + Low) / 2 yesterday). Box Ratio = Volume / (High − Low). The result is typically smoothed with a 14-period SMA. Positive EMV means price is advancing easily; negative means declining easily.

Key Signals

• EMV crossing above zero = price moving up with relative ease.
• EMV crossing below zero = price moving down with relative ease.
• Very low EMV despite a price rise = move lacks conviction.
• EMV divergence from price highlights unsustainable moves.

Common Mistakes

• Using EMV without a smoothing period — the raw data is extremely choppy.
• Treating EMV as a standalone entry signal rather than a confirmation tool.
• Applying EMV to markets with unreliable volume data.