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How Do You Read a 13F Filing?
Sort by value, read the top ten, then read the changes, and know which four traps make trackers report trades that never happened.
Read itCan You Copy Warren Buffett's Portfolio?
You can replicate the holdings, they are public. What you cannot replicate is the cost basis, the horizon, the hedges, and the willingness to be wrong for years.
What Is a 13F Filing, and When Is the Next Deadline?
The one document behind everything the public knows about what famous investors own: what it contains, what it hides, and the next filing date.
The Biggest 13F Filers, and What Their Size Tells You
The largest filed books we track, ranked, with the average position size beside them, which says more about how a firm invests than the total ever does.
What Are the Most Crowded Trades in the Market?
The companies the most separate institutional filers hold at once, why crowding matters in a drawdown rather than in a rally, and how it is counted.
What the Funds Bought Last Quarter
Every position opened or added between the last two 13F filings, grouped by stock, so you can see which names the most separate managers were building into at once.
The Stocks the Most Hedge Funds Own in 2026
Counting every 13F we hold at each fund's own latest filing, common stock only: the names the most separate managers report owning, and what consensus is actually worth.
The Most Active Super Investors of 2026
Which funds actually changed their portfolios last quarter, ranked by positions opened, added to and trimmed between their last two 13F filings.
Bill Ackman's Q1 2026 Portfolio: A New Microsoft Bet, Alphabet Nearly Gone
Pershing Square's latest 13F shows a brand new $2.1 billion Microsoft position and a 95% cut to Alphabet. Here is the full breakdown, position by position.
The Stocks Hedge Funds and Congress Both Own in 2026
We cross referenced 13F filings with congressional trade disclosures. Here are the stocks where Wall Street money and Capitol Hill buying overlap right now.
Why Did Buffett Triple His Alphabet Stake? Reading the Filing
Berkshire's Alphabet position grew 204% in one quarter, from a $5bn footnote to a $15.6bn conviction. Here is what the filing actually shows.
How to Read a 13F Filing on SEC EDGAR (Step by Step)
The filings are free and public. They are also raw XML with no ticker symbols. Here is how to actually read one, and the traps that fool people.
What Did Warren Buffett Buy in Q1 2026? Berkshire's 13F, Explained
Berkshire's latest 13F shows a tripled Alphabet stake, a brand new Delta position, and a 35% cut to Chevron. Here is the filed record, line by line.
13F Filings Explained: How to Follow the Smart Money for Free
Every big fund must show its hand four times a year. Here is what a 13F does and does not tell you, and how to read one without paying for a terminal.
The 10 Stocks Hedge Funds Own Most in 2026, From Their Own Filings
We read the latest 13F filings of 100+ tracked funds. These ten stocks appear in the most books, and the dollar amounts are larger than you might guess.