# Understanding the Performance Heatmap in Trader Journal

> The performance heatmap shows your P&L by day and hour across the week. Here is how to read it and use it to find when you trade best and worst.

**Tags:** heatmap, performance-analysis, app-features, session-trading

**URL:** https://traderjournal.app/app-features/understanding-performance-heatmap-trader-journal

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# Understanding the Performance Heatmap in Trader Journal

The performance heatmap is one of the most visually striking features in Trader Journal's reports. It shows your trading performance across days of the week and hours of the day in a colour-coded grid, immediately revealing when you trade well and when you do not.

## Accessing the Heatmap

Go to **Reports → Performance Heatmap**. The grid shows:
- **Rows:** Days of the week (Monday through Friday)
- **Columns:** Hours of the day (0:00 through 23:00)
- **Colour:** Green for profitable periods, red for losing periods, intensity reflects magnitude

Each cell represents your combined P&L for trades opened in that day/hour combination, aggregated across all time.

## Reading the Heatmap

**Bright green cells** are your strongest trading windows. These are the specific day-and-hour combinations where your strategy consistently generates positive results.

**Bright red cells** are your worst windows. These are when you either take setups that do not work, or when market conditions do not fit your approach.

**White/neutral cells** are windows with few or no trades.

## What the Heatmap Typically Reveals

**Session clustering:** Most forex traders show strong performance during London open (7:00-9:00 GMT) or New York open (13:00-15:00 GMT), with weaker results during the Asian session or overlap periods. The heatmap makes this clear visually.

**Specific bad patterns:**
- Friday afternoons consistently red (pre-weekend position squaring creates unusual price action)
- Sunday/Monday early hours red (thin liquidity at weekly open)
- News hours (13:30 GMT US data releases) may be mixed — good if you trade news, catastrophic if you don't

**Day of week patterns:** Some traders consistently lose on Mondays (slow start, hesitant execution) or Thursdays (ECB policy decisions). Others have strong Wednesdays from the weekly trader routine.

## Using the Heatmap to Improve Your Schedule

Once you identify your strong windows, the direct application is to focus your trading attention on those hours and reduce or eliminate trading during consistently red windows.

This sounds simple but is actually difficult without data. Without the heatmap, you might know you "usually do better in the morning" but not know precisely which hours, and whether that holds across all days or only certain days.

With the heatmap, you can make specific decisions: trade only between 7:00 and 10:00 GMT Monday through Thursday. Test this constraint for 30 trading days and compare your net P&L to the previous period.

## The Time Zone Setting

The heatmap uses the time zone configured in your Trader Journal account settings. Set this to your local time zone to see patterns relative to your own schedule — your "mentally fresh" morning hours versus tired afternoon sessions.

Alternatively, set it to GMT to analyse relative to London market hours — useful if your strategy is session-based.

## Filtering the Heatmap

Like other reports, the heatmap supports filters:

- Filter by date range to compare different periods
- Filter by tag to see if your A+ setup has a specific time window where it performs best
- Filter by pair to find GBPUSD's best hours separately from EURUSD

The combination of tag filter and heatmap is particularly powerful: it shows not just when you trade well overall, but when your specific edge is strongest.