Category: Technical · Complexity: ★★☆☆☆ (2/5)
Tags: technical, live-overlay, price
Live chart overlay: ROC
Formula
ROC = 100 · (C_t − C_{t-n}) / C_{t-n}
How to read
Zero-line is unchanged price. Rising ROC = accelerating advance; falling ROC = decelerating or reversing.
Limitations
Sensitive to the lookback spike n bars ago (drop-off effect).
Typical settings
12 or 21
Rate of Change is part of the ClearPath Encyclopedia of Indicators — 190 models explained with standard SVG illustrations, so you can study an indicator before you put it on a live chart.