# forge.ta.piercing

```python
forge.ta.piercing(open: ArrayLike, high: ArrayLike, low: ArrayLike, close: ArrayLike, long_body_pct: float = 50.0, penetration: float = 0.5) -> np.ndarray
```

Piercing line: a rise that closes deep into the previous fall. Found: 1.

The first bar falls with a long body, the second opens at or below its close and closes at least
``penetration`` of the first body above that close, still below the first open.

Since Forge API 1.

## Class forge.ta.Piercing

```python
forge.ta.Piercing(**inputs: Any) -> None
```

A rise that closes deep into the previous fall.

body = |close - open|, range = high - low, upper wick = high - max(open, close), lower wick = min(open, close) - low

the first bar falls with a long body; the second rises, opens at or below the first close and closes at or above first close + penetration * first body, below the first open

Found: 1

A bar whose high equals its low, or that has a missing price, is never part of a pattern. Computed on the prices the bars are drawn with: on Heikin-Ashi or Renko bars those are the built candles.

Since Forge API 1.