# Market activity

The Market activity box shows a heatmap of [merchant](https://docs.p2pprice.app/glossary/) activity across the week. Use it to find the best days and hours to trade in [P2P](https://docs.p2pprice.app/glossary/) markets.

## What is a heatmap?

A heatmap is a grid of colored cells. Each cell stands for one hour of one day of the week. Brighter cells mean more activity happened during that time. Darker cells mean less activity.

## What counts as activity?

The heatmap counts actions that merchants take on their offers, such as:

- Price changes
- Refills (adding more [USDT](https://docs.p2pprice.app/glossary/) supply to an offer)
- Sales (completed trades)

## Time range

This box always uses the last 90 days of data. It does not respond to the time range you set on the rest of the page.

**Important:** If you change the page time filter, the Market activity heatmap stays the same. It is always fixed to the last 90 days.

All times in the heatmap are shown in your local timezone.

## How to use it

Look at the grid and find the brightest cells. Those are the hours and days when the most merchants are active.

A few simple steps:

1. Find the row for the day of the week you want to trade.
2. Look along that row for the brightest cells.
3. Trade during those hours to find more active offers.

**Tip:** Check the current day of the week and look for the brightest hours ahead. That tells you when activity is likely to be highest today.