Looking for an indicator that alerts when price starts moving fast, can anybody help ?

<p id="isPasted">This is what I wrote for my own use. It comes with a sweet voice that tells you when a price level has been crossed (thanks to Accrete who showed us how to to do this). I use it when I have to get away from the computer or when prices are not moving.</p><p>Copy the indicator file to the "Indicator" folder and the wav files to the "Sound" folder.</p><p><img data-fr-image-pasted="true" src="data:image/png;base64,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" alt="File Type: zip" width="16" height="16" border="0" title="File Type: zip" style="-webkit-tap-highlight-color: transparent; border: 0px; color: rgb(0, 0, 0); font-family: Verdana, Helvetica, sans-serif; font-size: 11.088px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; background-color: rgb(244, 246, 249); text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;" id="isPasted" class="fr-fic fr-dii fr-draggable">&nbsp;<a href="https://www.forexfactory.com/attachment/file/14492?d=1163671871" target="_blank" rel="noopener noreferrer">Alert Price.zip</a> 437 KB </p><p><br></p><p><br></p>

<p id="isPasted">Yes, several indicators can help detect rapid price movements, primarily by measuring momentum or volatility. Most modern trading platforms, such as MetaTrader and TradingView, allow you to set up alerts based on these indicators or specific price changes.&nbsp;</p><p><strong>Here are the key indicators used for this purpose:</strong></p><p><strong>Volatility-Based Indicators</strong></p><p>These indicators measure the speed and range of price fluctuations and can alert you when volatility is increasing.&nbsp;</p><ul><li>Average True Range (ATR): The ATR measures the average range between high and low prices over a specific period, quantifying market volatility.</li><li>How it works: A higher ATR value indicates greater market volatility and faster price movements, while a lower ATR suggests a calmer market.</li><li>Alert setup: You can typically set an alert in your platform when the ATR value crosses a certain threshold or changes by a specific percentage.</li><li>Bollinger Bands: These bands consist of a middle moving average line and upper and lower bands that expand and contract based on market volatility (standard deviation).</li><li>How it works: A rapid widening of the bands (Bollinger Band Squeeze breakout) or price breaking outside the bands often signals a significant increase in momentum and fast price action.</li><li>Alert setup: Platforms allow you to set alerts when the price touches or crosses an upper/lower band or when the bands widen/narrow significantly. </li></ul><p><strong>Momentum-Based Indicators</strong></p><p>Momentum indicators measure the speed or velocity of price changes and can signal when a trend is gaining strength quickly.&nbsp;</p><ul><li>Rate of Change (ROC) / Momentum Indicator: This simple oscillator directly measures the percentage change in price over a defined period (e.g., 10 or 14 days).</li><li>How it works: A sharp rise in the ROC indicator indicates a rapid increase in price momentum.</li><li>Alert setup: You can set alerts for when the ROC line crosses above the zero line (or another specific level) with unusual steepness, indicating a potential price surge.</li><li>Relative Strength Index (RSI): While primarily used for overbought/oversold conditions, the RSI measures the speed and magnitude of recent price changes.</li><li>How it works: Sharp movements of the RSI line towards the overbought (above 70) or oversold (below 30) zones can highlight fast price action.</li><li>Alert setup: Alerts can be triggered when the RSI crosses specific levels (e.g., 70 or 30) or crosses a centerline (50), indicating a shift in momentum. </li></ul><p><strong>Platform-Specific Tools</strong></p><p>Most platforms also have built-in features that don't require an extra indicator:&nbsp;</p><ul><li>Price Level Alerts: The simplest method is to set a price alert at specific support or resistance levels. When the price quickly reaches and crosses that line, you receive a notification.</li><li>Custom Scripts/EAs: For specific conditions (like a large price move within a very short, specific timeframe), you may need a custom Expert Advisor (EA) or script in platforms like MetaTrader that can monitor and alert you to these precise scenarios. </li></ul><p>The best approach is often to combine a volatility indicator (like ATR) with a price level alert to confirm the strength and significance of the price movement.&nbsp;</p>