# Confirmed period pivots (`ta.pivot_points`)



<a id="ta-pivot-points"></a>

Compute support and resistance from the previous complete period marked by explicit anchor values; Woodie additionally uses the new period's open. developing=True outputs cumulative levels for the current anchored interval; the first anchor bar is immediately available, invalid OHLC contaminates values until the next anchor, and Woodie forbids developing.

[Indicator catalog](https://docs.openbacktesting.com/reference/indicators/index.md) · [How to use indicators](https://docs.openbacktesting.com/reference/indicator-api/index.md)

## Run this example

This complete script uses bundled data. It observes the selected output without placing trades.

```python
import numpy as np
from openbacktesting import Backtest, Strategy
from openbacktesting.test import GOOG

data = GOOG.copy()
data["anchor"] = (np.arange(len(data)) % 20 == 0).astype(float)

class Example(Strategy):
    def init(self):
        self.value = self.ta.pivot_points(inputs={'open_': 'Open', 'high': 'High', 'low': 'Low', 'close': 'Close', 'anchor': 'anchor'})
        self.latest_value = None

    def next(self):
        channel = self.value.p
        if channel.valid[-1]:
            self.latest_value = float(channel[-1])

result = Backtest(data, Example).run()
print(result["_strategy"].latest_value)
```

Example inputs: anchor marks every twentieth bar; replace it with actual period starts.

## Call and parameters

```python
self.ta.pivot_points(
    *,
    method='traditional',
    developing=False,
    inputs=None,
    backend=None,
    required_outputs=None,
)
```

Register in `init()`. Read the returned channel in `next()` after checking `valid[-1]`.

| Parameter | Meaning | Type | Default | Allowed values |
| --- | --- | --- | --- | --- |
| `method` | Pivot-point formula family; choose one of the listed methods. | `str` | `traditional` | Allowed values: `['traditional', 'fibonacci', 'woodie', 'classic', 'demark', 'camarilla']` |
| `developing` | Use the current anchored interval instead of the previous complete interval. | `bool` | `False` | No additional constraints |

`source`/named source arguments accept a column name or same-run single-channel handle. Alternatively, `inputs` maps each input below to a column or handle. `backend` selects a supported implementation; `required_outputs` selects channels for readiness diagnostics. See [shared arguments and handles](https://docs.openbacktesting.com/reference/indicator-api/index.md#bind-inputs-and-read-outputs).

## Inputs and outputs

Required inputs: `open_`, `high`, `low`, `close`, `anchor`.

| Channel | Meaning |
| --- | --- |
| `p` | Central pivot level |
| `r1` | Resistance level 1 |
| `s1` | Support level 1 |
| `r2` | Resistance level 2 |
| `s2` | Support level 2 |
| `r3` | Resistance level 3 |
| `s3` | Support level 3 |
| `r4` | Resistance level 4 |
| `s4` | Support level 4 |
| `r5` | Resistance level 5 |
| `s5` | Support level 5 |

## Reading values safely

Insufficient history or missing inputs can make a channel invalid. Check that channel's `valid` mask; `ready` is diagnostic and never suppresses `next()`. Multi-output results may have different valid channels on the same bar.

Supply a complete 0/1 anchor series. The example resets every 20 bars only to demonstrate binding; replace it with your intended periods. Exchange sessions are not inferred.

[Indicator catalog](https://docs.openbacktesting.com/reference/indicators/index.md) · [Custom calculations](https://docs.openbacktesting.com/reference/strategy/index.md#register-custom-calculations)