# Aroon Up Down (AROONUPDOWN)

> QuantNexus indicator page for Aroon Up Down.

**Route**: `/quantnexus/indicators/aroonupdown/`

## What It Does

Aroon Up Down shows both upward and downward recency in a single framework. It is useful for reading the balance of trend pressure.

## Formula

Aroon Up Down combines the recency of highs and lows within the same lookback window.

## Parameters

- `period` - default `14`
- `upperband` - default `70`
- `lowerband` - default `30`

## C++23 API

```cpp
#include <nonabt/indicators/aroonupdown.hpp>
auto aroonupdown = std::make_unique<nonabt::AROONUPDOWN>(data(), 14, 70, 30);
```

## Common Usage

- Use it to compare bullish and bearish recency at a glance.
- Combine it with the oscillator version for additional confirmation.
- Helpful in regime classification workflows.

## Practical Pattern

If the up component dominates, bullish structure is more recent; if the down component dominates, bearish structure is more recent.