Performance Charts are Incorrect
I believe your performance charts are using an incorrect starting value for the date resulting in an incorrect calculation.
I have included a screen shot showing the 1Y performance chart for VTI (12/24/24 to 12/24/25).
It shows the 1Y return as 17.02%, this value is using the adjusted close close of 12/23/24 and is incorrect. Basically you are incorrectly adding a day to the calculation.
If you look at the watchlist on the right, I have highlighted the 1Y return for VTI which is 15.79%, which is correctly using the 12/24/24 adjusted closing price.