Indeed. If you want to invest like Buffett, just save your time and effort and buy BRK-B. But keep in mind, that for basically any stretch of the last 15 years, Buffett has either just tracked the market or underperformed it...
Versus S&P 500...
15 years:
SPY: 679%
BRK-B: 607%
10 years:
SPY: 234%
BRK-B: 224%
5 years:
SPY: 99%
BRK-B: 102%
1 year:
SPY: 28%
BRK-B: 26%
Buffett may be the greatest stock market guy of all time but he’s certainly capable of screwing up in a huge way... e.g., selling his huge McDonalds stake 20 years ago, and since then...
MCD: 1,707%
BRK: 612%
He’d be 3x richer if he’d sold BRK and bought MCD
About the only thing that is not some special find of individual stocks that matches the market, is the market. Why pay some mutual fund manager to try to beat it? They hardly ever do. Even Buffett recommends to this family to buy S&P500ETF.