# Down Move (DOWNMOVE)

> QuantNexus indicator page for DOWNMOVE.

**Route**: `/quantnexus/indicators/downmove/`

## What It Does

DOWNMOVE measures downside movement magnitude in percentage terms. It is a compact utility for bearish momentum evaluation.

## Formula

`Down Move = percentage downward movement over the selected window`

## Parameters

- `perc` - default `2.5`

## C++23 API

```cpp
#include <nonabt/indicators/downmove.hpp>
auto downmove = std::make_unique<nonabt::DOWNMOVE>(data(), 2.5);
```

## Common Usage

- Use DOWNMOVE to quantify downside displacement.
- Combine it with reversal detection.
- Helpful for filtering sharp selloffs.

## Practical Pattern

Large negative DOWNMOVE values can indicate an extended bearish burst.