I don’t know where to put it, but AI is doing some errors assuming the profits from positions? Or it is taking only the last moves? Bond etf is one of the least profitable, and the “top losers” are the ones of top profitable in my portfolio.

When the AI analysis says “Top gainers” or “top losers” it is referring to how the stocks have performed today.
The 1.03% and 515.32% values refer to your total profit in these positions. Your position can be up overall despite the stock price being slightly down today.