What the Calendar Heatmap Shows
The calendar heatmap displays your daily P&L as a color gradient:
- Dark green: Profitable day (deeper = more profitable)
- Red: Losing day (deeper = larger loss)
- Gray: No trading activity
Hover over any day to see: date, P&L, trade count, and win rate for that day.
How to Read Patterns
Day-of-week patterns:
Look at the columns — do specific days of the week consistently show red? Many traders discover:
- Mondays are their worst day (eager trading after the weekend, market hasn't found direction)
- Fridays are problematic (reduced liquidity, position squaring)
- Wednesdays are strong (mid-week momentum often clearest)
Monthly patterns:
Look at the first and last week of each month. FOMC weeks (mid-month) often show different volatility patterns.
Overtrading indicators:
Days with many small wins but a large loss often indicate overtrading: the journal records 8 small wins and 2 large losses, with the losses dominating P&L.
Win streak and losing streak clusters:
Are losses clustering in sequences? A series of red days without a break may indicate systematic overtrading or emotional cascade (one loss leads to revenge, leads to more losses).
Actionable Insights from the Heatmap
After 3 months of data:
- Calculate your average P&L by day of week
- Identify your 2 worst performing days of the week
- Consider restricting or eliminating trading on those days — or at minimum, reduce size
- For the best-performing days, confirm you're trading at your normal (not reduced) size
This simple day-of-week analysis often provides a quick, specific performance improvement.