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.
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.
On-Balance Volume tracks cumulative buying and selling pressure by adding volume on up days and subtracting volume on down days — it often leads price breakouts by showing institutional accumulation or distribution. OBV divergence is one of the strongest early-warning signals available, especially when confirming <a href="/guides/trade-breakouts" class="text-primary hover:underline">breakout setups</a> in <a href="/market/stocks" class="text-primary hover:underline">stocks</a> and <a href="/market/crypto" class="text-primary hover:underline">crypto</a>. Pair OBV with the <a href="/academy/indicators/volume-profile" class="text-primary hover:underline">Volume Profile</a> for a complete picture of where institutional money is flowing. Browse our <a href="/academy/indicators" class="text-primary hover:underline">indicators hub</a> to discover more volume-based analysis tools.
The Volume Weighted Moving Average weighs each price bar by its volume before averaging, so high-volume bars have more influence on the average than low-volume bars. VWMA gives traders a truer picture of the "agreed-upon" price compared to a standard <a href="/academy/indicators/simple-moving-average" class="text-primary hover:underline">SMA</a>. It is especially useful in <a href="/market/stocks" class="text-primary hover:underline">stock</a> and <a href="/market/crypto" class="text-primary hover:underline">crypto</a> trading on <a href="/tools/platforms/tradingview" class="text-primary hover:underline">TradingView</a>, and can be explored alongside other volume tools in our <a href="/academy/indicators" class="text-primary hover:underline">indicator guide library</a>.
The Positive Volume Index tracks price changes exclusively on days when volume increases, reflecting crowd-driven activity and retail sentiment. PVI works in tandem with the <a href="/academy/indicators/negative-volume-index" class="text-primary hover:underline">NVI</a> to contrast smart-money behaviour with public participation in <a href="/market/stocks" class="text-primary hover:underline">stock</a> and <a href="/market/crypto" class="text-primary hover:underline">crypto</a> markets. Explore our <a href="/academy/indicators" class="text-primary hover:underline">indicator guide library</a> for the full suite of volume-based analytical tools.
The Accumulation/Distribution (A/D) line uses both price and volume to assess whether a security is being accumulated (bought) or distributed (sold) — a refinement on <a href="/academy/indicators/on-balance-volume" class="text-primary hover:underline">OBV</a> that considers where price closes within the bar. A/D divergence is a powerful early signal for <a href="/market/stocks" class="text-primary hover:underline">stock</a> and <a href="/market/crypto" class="text-primary hover:underline">crypto</a> traders who want to spot institutional moves before the crowd. Integrate A/D analysis into your <a href="/strategies" class="text-primary hover:underline">trading strategies</a> alongside price structure for higher-confidence entries. Explore more volume tools in our complete <a href="/academy/indicators" class="text-primary hover:underline">indicator guide library</a>.