What it does
The Coppock Curve is a long-term momentum indicator built for monthly charts: it is a 10-period weighted moving average of the sum of the 14-period and 11-period rate of change. Edwin Coppock designed it to find major stock market bottoms, reasoning that market grief, like personal grief, takes 11 to 14 months to heal. It oscillates around zero and moves slowly by construction.
Typeoscillatorseparate pane
How to add it
Click Indicators (ƒx) in the header.
Search “Coppock Curve” and click the result.
Hover its legend row and click the gear to open settings.
How traders use it
- Use the classic buy rule: the curve turning upward from below zero on a monthly chart historically flags major bear-market bottoms in stock indices.
- Treat it as a long-horizon regime tool for investors, not a trading trigger; it answers whether the multi-year tide is turning.
- Some traders adapt the same construction to weekly or daily charts for shorter cycles, with correspondingly weaker evidence.
- Combine an upturn with breadth or valuation signals for major allocation decisions.
Inputs
| Input | Type | Default | Range / Options |
|---|---|---|---|
| WMA Length | number | 10 | 1–5000 |
| Long RoC Length | number | 14 | 1–4999 |
| Short RoC Length | number | 11 | 1–4999 |
Plots & styling
| Plot | Style | Default color |
|---|---|---|
| Coppock(10,14,11) | line | #2196F3 |
Every plot's color, line width and visibility can be changed on the Style tab. Precision (default 2 decimals), price-scale labels and status-line values are configurable at the bottom of the Style tab.
Tips
- Hide the study from the legend eye instead of removing it when you only want it out of the way temporarily.
- Merge multiple oscillators into one pane from the legend ⋯ menu to compare them on a shared axis.
- Double-click the plot to open settings directly, skipping the legend hover.
Watch out for
- Signals are extremely rare (often years apart) and heavily lagged; part of the new bull move is always missed.
- It was designed for buy signals on indices; sell-side and single-stock use is unproven.