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lib/oscillators/coppock/Coppock.md
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# COPPOCK: Coppock Curve
# COPPOCK: Coppock Curve
| Property | Value |
| ---------------- | -------------------------------- |
| **Category** | Oscillator |
| **Inputs** | Source (close) |
| **Parameters** | `longRoc` (default DefaultLongRoc), `shortRoc` (default DefaultShortRoc), `wmaPeriod` (default DefaultWmaPeriod) |
| **Outputs** | Single series (Coppock) |
| **Output range** | Varies (see docs) |
| **Warmup** | 1 bar |
### TL;DR
- The Coppock Curve is a long-term momentum oscillator that applies a Weighted Moving Average to the sum of two Rate of Change calculations at differ...
- Parameterized by `longroc` (default defaultlongroc), `shortroc` (default defaultshortroc), `wmaperiod` (default defaultwmaperiod).
- Output range: Varies (see docs).
- Requires 1 bar of warmup before first valid output (IsHot = true).
- Validated against TA-Lib, Skender, and Tulip reference implementations where available.
The Coppock Curve is a long-term momentum oscillator that applies a Weighted Moving Average to the sum of two Rate of Change calculations at different lookback periods. Originally designed for monthly charts to identify major market bottoms, it produces a single oscillating line where zero-line crossovers from below signal long-term buying opportunities. The dual-ROC architecture captures both intermediate and longer-term momentum dynamics in a single smoothed output.