Hey pescadorloco69,

There's a [custom date range] link below the year drop down field.
You can set a custom start and end date there.
- Ensure you have checked the "Check to use the custom period" checkbox
- And use this date format "dd.mm.yyyy"

Using this setting, only sales within your custom time period will be calculated.

It will still use purchases before the start date to calculate your gains, but that's what you usually want to do.
If not, please disable this checkbox "Consider all previous trades in report".

Best
Dario