Trading volume shows how many trades went through on an asset over a chosen period, adding information about real market participant activity on top of price analysis. Price movement without volume confirmation often turns out weak and short-lived, while a price rise on elevated volume more likely reflects genuine, sustained interest in the asset.
Why volume matters in binary options
On traditional exchanges, volume is considered one of the most reliable confirming signals, but using it in binary options has a quirk: many broker platforms don't have access to real exchange volume data and instead use tick volume — the number of price changes over a period. This is an approximate, but still useful, measure of market activity.
Main volume indicators
On-Balance Volume (OBV) is a cumulative indicator that adds volume on days the price rises and subtracts it on days it falls. OBV rising along with price confirms trend strength; a divergence between price and OBV (price rising, OBV falling) signals weakness in the move.
Volume-Weighted Average Price (VWAP) is the average price weighted by volume over a period. Price above VWAP is considered a sign of buyer strength, below VWAP a sign of seller strength.
Tick volume indicator shows relative market activity at a given moment, helping distinguish a move on high activity from one during a period of low liquidity, which is statistically less reliable.
How volume confirms signals
A breakout of a support or resistance level confirmed by a sharp rise in volume is considered more reliable than the same breakout on low activity — the latter more often turns out to be false. Likewise, a reversal candlestick pattern on elevated volume gives more confidence in the signal than a similar shape during minimal market activity.
Table of volume indicator applications
| Indicator | What it shows | How to use it |
|---|---|---|
| OBV | Cumulative volume relative to price direction | Looking for price/volume divergences |
| VWAP | Average price weighted by volume | A reference for buyer/seller strength |
| Tick volume | Market activity at a given moment | Confirming breakouts and patterns |
Limitations of volume indicators in options trading
Since most binary options platforms don't provide access to real exchange volume, volume indicators in this field work as an approximate rather than an exact tool. It is wiser to use them as additional confirmation alongside other signals rather than as the sole basis for a trade — more on the principles of combining indicators is covered in the article on combining indicators.
Connection to trading strategy
Volume indicators are especially useful in breakout strategies and trend-following strategies, where it matters to distinguish the start of a sustained move from a brief spike. A detailed breakdown of using volume as a standalone strategy is covered in the article on a volume-based trading strategy.
Conclusion
Volume indicators add a dimension to market analysis that isn't visible when looking at price alone — the real activity of trading participants. Despite the limitations caused by the lack of exact exchange data at most brokers, tick volume and derived indicators remain a useful tool for confirming signals in binary options.