Berkshire Hathaway Inc. 13F holdings and portfolio analysis

ProntoBerkshire Hathaway Inc. · Warren Buffett

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Baseline

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Baselinetested
Riferimento Q&A strategia3 Q&A di riferimento

Q&A pre-generati su questo fondo. Usa come contesto di riferimento per la tua analisi.

baseline13FChat AI
What does directly following the disclosed baseline portfolio expose an investor to?

Following Baseline means accepting the manager's disclosed sizing almost directly. Here that means high concentration in a short list of holdings: top 5 70.88%, top 10 88.27%, top 20 96.73%, with AAPL 22.60%, AXP 20.46%, BAC 10.38%, KO 10.20%, CVX 7.24%, MCO 4.60%. The baseline result is return 11.59%, alpha -1.66%, beta 1.02, Sharpe 0.65, Sortino 0.80, max drawdown -38.54%. That is the right reference case, but it is not automatically the safest case because the largest names and sector mix (Financials 42.81%, Information Technology 23.40%, Consumer Staples 14.87%, Energy 11.21%) still dominate the realized path.

↳Compare Baseline concentration and drawdown with each screen.
baseline13FChat AI
Which recent baseline periods best explain the risk-return trade-off?

The period rows show the character of the baseline. The strongest relative period was 2024-03-31 (10.08% vs SPY 4.22%, excess 5.86%, turnover 8.41%); the weakest was 2025-03-31 (-0.66% vs SPY 9.93%, excess -10.58%, turnover 3.30%). The latest rows (2025-06-30 (7.82% vs SPY 7.42%, excess 0.40%, turnover 4.67%); 2025-09-30 (5.12% vs SPY 3.13%, excess 2.00%, turnover 8.14%); 2025-12-31 (0.00% vs SPY 0.00%, excess 0.00%, turnover 4.36%)) show whether recent results are confirming or reversing the long-term profile.

↳Rank recent baseline periods by excess return and turnover.
baseline13FChat AI
What should a user inspect next before deciding whether the baseline is acceptable?

Before accepting Baseline, I would inspect three things: whether AAPL 22.60%, AXP 20.46%, BAC 10.38%, KO 10.20% still have current theses, whether recent changes such as no large named moves and no large named moves indicate a shift, and whether max drawdown of -38.54% is acceptable for the user's risk budget.

↳Review the largest baseline holdings and explain whether each still deserves its weight.
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