# MACD Histo (MACDHIST)

> QuantNexus indicator page for the MACD histogram.

**Route**: `/quantnexus/indicators/macdhist/`

## What It Does

MACDHIST shows the distance between the MACD line and its signal line, which makes momentum shifts easier to see.

## Formula

`MACD Histogram = MACD Line - Signal Line`

## Parameters

- `period_me1` - default `12`
- `period_me2` - default `26`
- `period_signal` - default `9`
- `movav` - default `ExponentialMovingAverage`

## C++23 API

```cpp
#include <nonabt/indicators/macdhist.hpp>
auto macdHist = std::make_unique<nonabt::MACDHIST>(data().close(), 12, 26, 9, "ExponentialMovingAverage");
```

## Common Usage

- Watch zero-line crosses for momentum regime changes.
- Use histogram expansion to confirm trend acceleration.
- Pair it with MACD line crossovers for cleaner timing.