Chaikin Volatility measures the rate of change of the difference between high and low prices, providing a unique view of how the trading range is expanding or contracting. Unlike ATR, which smooths absolute range, Chaikin Volatility focuses on the acceleration of range changes. It is useful in stock and forex markets and can be explored alongside other volatility tools in our indicator guide library.
Chaikin Volatility = [(EMA of High − Low today) − (EMA of High − Low N periods ago)] / (EMA of High − Low N periods ago) × 100. Default period is 10 for the EMA and 10 for the ROC. Rising values mean the high-low spread is widening; falling values mean it is narrowing.
The Mass Index identifies potential trend reversals by measuring the narrowing and widening of the range between high and low prices, generating a "reversal bulge" signal when the range first expands then contracts. It is a unique contrarian tool for <a href="/market/stocks" class="text-primary hover:underline">stock</a> and <a href="/market/forex" class="text-primary hover:underline">forex</a> traders. Combine Mass Index reversal signals with momentum tools from our <a href="/academy/indicators" class="text-primary hover:underline">indicator guide library</a> for higher-probability entries.
Keltner Channels plot an EMA with upper and lower bands based on <a href="/academy/indicators/atr" class="text-primary hover:underline">ATR</a>, producing smoother envelopes than <a href="/academy/indicators/bollinger-bands" class="text-primary hover:underline">Bollinger Bands</a> — and the two are frequently used together for the TTM Squeeze setup. This combination identifies low-volatility compression zones that precede explosive <a href="/guides/trade-breakouts" class="text-primary hover:underline">breakout</a> moves in any market. Apply Keltner Channels on <a href="/tools/platforms/tradingview" class="text-primary hover:underline">TradingView</a> and overlay Bollinger Bands to spot squeeze conditions with a single glance.
Donchian Channels plot the highest high and lowest low over a specified period, forming a simple but effective volatility envelope and breakout system that powered the legendary Turtle Trading strategy. They are widely used in <a href="/market/forex" class="text-primary hover:underline">forex</a> and <a href="/market/crypto" class="text-primary hover:underline">crypto</a> for trend-following breakout <a href="/strategies" class="text-primary hover:underline">strategies</a>. Compare Donchian Channels with <a href="/academy/indicators/bollinger-bands" class="text-primary hover:underline">Bollinger Bands</a> and <a href="/academy/indicators/keltner-channels" class="text-primary hover:underline">Keltner Channels</a> in our <a href="/academy/indicators" class="text-primary hover:underline">indicator guide library</a>.
ATR measures market volatility by calculating the average range of price bars over a specified period — it is essential for position sizing, stop-loss placement, and identifying volatility shifts. Use our <a href="/tools/calculators/position-size-calculator" class="text-primary hover:underline">position size calculator</a> to convert ATR readings into proper trade sizing instantly. Read the <a href="/guides/use-stop-loss-orders" class="text-primary hover:underline">stop-loss guide</a> and the <a href="/guides/calculate-position-size" class="text-primary hover:underline">position sizing guide</a> to master ATR-based risk management across every market. ATR adapts to any asset — apply it in <a href="/market/crypto" class="text-primary hover:underline">crypto</a>, <a href="/market/stocks" class="text-primary hover:underline">stocks</a>, and <a href="/market/forex" class="text-primary hover:underline">forex</a> for volatility-adjusted trading.