# Hull Moving Average (HMA)

> QuantNexus indicator page for the HMA low-lag moving average.

**Route**: `/quantnexus/indicators/hma/`

## What It Does

HMA aims to be smoother than a standard moving average while responding faster to price changes. It is widely used in trend-following systems.

## Formula

`HMA = WMA(2 * WMA(price, n/2) - WMA(price, n), sqrt(n))`

## Parameters

- `period` - default `30`
- `_movav` - default `WMA`

## C++23 API

```cpp
#include <nonabt/indicators/hma.hpp>
auto hma = std::make_unique<nonabt::HMA>(data().close(), 30, "WMA");
```

## Common Usage

- Use HMA as a fast trend baseline.
- Combine it with price crossovers or a second slower average.
- Helpful for trend reversal detection without too much lag.

## Practical Pattern

Buy when price closes above HMA and HMA is sloping upward; exit when price loses that baseline.