Warren Buffett's Company Holds More Cash Than Stocks. The Number for Your Own Cash Is Much Smaller, and Buffett Wrote It Down

Key takeaways

• Here is how much cash a retired couple with $2.4 million and $4,300 a month in Social Security should hold, where to keep it, and why the answer is 14%, not Berkshire's 31%.
• The cash grew by $4.1 billion in nine months, from $373.3 billion at the end of 2025, and it earns interest while it waits: about $15.7 billion a year at the current 4.17% three-month bill rate.