# Coint N (COINTN)

> QuantNexus indicator page for COINTN utility logic.

**Route**: `/quantnexus/indicators/cointn/`

## What It Does

COINTN is a cointegration-oriented helper indicator. It is generally used in statistical arbitrage and relationship analysis between time series.

## Formula

COINTN applies a regression or cointegration routine over the lookback window to estimate relationship stability.

## Parameters

- `period` - default `10`
- `regression` - default `c`

## C++23 API

```cpp
#include <nonabt/indicators/cointn.hpp>
auto cointn = std::make_unique<nonabt::COINTN>(data().close(), 10, "c");
```

## Common Usage

- Use COINTN for spread analysis.
- Combine it with pairs trading logic.
- Helpful in mean-reversion and relative-value systems.

## Practical Pattern

Stable cointegration can justify spread-based entries when two instruments diverge from their normal relationship.