Would be useful to see the overnight interest accumulated for a position in CFD. For the open and closed ones.
The overnight interest for closed positions is available in the ‘History’ → ‘Overnight interest’ section.
This information isn’t yet available for open positions, but I understand how it would be helpful and will pass on the suggestion. However, you can calculate the overnight financing cost with the formulas below:
Short positions (SELL):
Quantity x Short position overnight interest x Number of Nights
Long positions (BUY):
Quantity x Long position overnight interest x Number of Nights
From what I see, the ‘History’ → ‘Overnight interest’ section shows the interest occurred per each day per position, for both open and closed positions. So we have to sum up all the days manually.
Would be useful to see the total overnight interest when looking at the details of an individual position, in its ‘Info’ tab. The details window for both open and closed positions are already very similar. Here are UI mock-ups to illustrate.
Got it. Thanks for the mock-ups and additional clarification 
I’ll let you know if we implement such data.