Is the portfolio profit index broken?

It show always the same percentage grow when I set: 1 day, 1 week, 1 month…etc
Is it broken or what?

What happens when you slide through the graph? Does it change then?

When you change the time frame it only changes the graphic but the gain/loss value and percentage remain the same and is the total compared to the amount invested.
If you move your finger on the graphic you can see the change on the specific day you are touching.

There was a topic were some users were asking about implementing what you are asking but AFAIK there has been no commitment to it yet.