I've researched that and it all looks good, but I may have made more in the stocks I did buy. So hard to tell as some of my stocks are reinvested and some not.
Instead I bought APPL and MSFT and SMCI and KO and so many others.....admittedly, buying just one stock would have been less work, but over 20 years would I have sold all as I have with other stocks at times? I used my gains of 4 months back in 2020 to pay cash for a house, so liquidating some of the A shares would have been tough.
In short, maybe would have been better off. Maybe not.
I will say, based on a 1 year return, I slightly outpaced Warren. Of course, it depends on what day you took a snapshot. I've given back lately