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 NVI to contrast smart-money behaviour with public participation in stock and crypto markets. Explore our indicator guide library for the full suite of volume-based analytical tools.
When today's volume exceeds yesterday's: PVI = previous PVI + (percentage price change × previous PVI). When volume decreases, PVI stays unchanged. A 255-day EMA is used as a signal line. PVI rising on high volume reflects crowd enthusiasm and retail participation.
Chaikin Money Flow measures the volume-weighted <a href="/academy/indicators/accumulation-distribution" class="text-primary hover:underline">accumulation/distribution</a> pressure over a set period, oscillating between −1 and +1 to show sustained buying or selling. CMF is one of the most reliable volume indicators for confirming breakouts in <a href="/market/stocks" class="text-primary hover:underline">stocks</a> and <a href="/market/crypto" class="text-primary hover:underline">crypto</a>. Use it alongside the <a href="/academy/indicators/on-balance-volume" class="text-primary hover:underline">OBV</a> for dual volume confirmation in your <a href="/strategies" class="text-primary hover:underline">trading strategies</a>.
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 Negative Volume Index tracks price changes exclusively on days when volume decreases, based on the theory that smart money operates during quieter trading sessions. NVI is a long-term tool primarily used in <a href="/market/stocks" class="text-primary hover:underline">stock</a> markets to detect institutional accumulation. Pair it with the <a href="/academy/indicators/positive-volume-index" class="text-primary hover:underline">PVI</a> for a complete picture and browse our <a href="/academy/indicators" class="text-primary hover:underline">indicator guide library</a> for additional volume analysis tools.
Price Volume Trend is similar to <a href="/academy/indicators/on-balance-volume" class="text-primary hover:underline">OBV</a> but adjusts each period's volume by the percentage change in price, giving proportionally more weight to large moves and less to small ones. PVT provides a more nuanced view of accumulation and distribution 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 PVT with trend-following <a href="/strategies" class="text-primary hover:underline">strategies</a> and explore our <a href="/academy/indicators" class="text-primary hover:underline">indicator guide library</a> for complementary tools.