How Superinvestor tracking works

Every quarter, institutional investment managers with over $100M in assets are required to disclose their US stock holdings to the SEC on a form called a 13F. We track a curated list of well-known value investors — Warren Buffett, Seth Klarman, Mohnish Pabrai, and roughly 80 others — and surface what changed each time a new filing lands.

What counts as an event

New Position. A tracked investor didn't hold the stock last quarter and does now. Sold Out. A tracked investor held the stock last quarter and doesn't anymore — a full exit, not a trim. Increased and Decreased. An existing position changed by a meaningful amount quarter over quarter, in either direction. Small, routine rebalancing doesn't qualify — only changes large enough to represent a real shift in that investor's view.

What the conviction percentage means

Wherever you see a badge like "🏆 Pabrai 1.2%," that number is the share of that investor's own portfolio allocated to this one stock — not a rating of the stock, and not how many investors hold it. A manager who puts 15% of their book into one name is expressing far more conviction than one holding a 0.2% position, even though both are real, disclosed holdings.

This means a tiny position still shows up. That's deliberate — a real holding at any size is still a real, verifiable data point about what a specific, well-regarded investor chose to do with their own capital, and it's more informative to see it (clearly labeled with its actual size) than to hide it behind an arbitrary cutoff.

Where you'll see it

On the Screener, the "Superinvestor Picks" filter narrows the list to tickers with at least one tracked holder, with the badge showing the largest position size among them. In Pulse, superinvestor moves show up as their own event type, filterable by investor, activity type, or minimum conviction — and when a ticker has both a price event and superinvestor activity in the same window, it's flagged with a "Smart money signal" badge, since the two lining up together is a stronger signal than either alone.

What a 13F does and doesn't tell you

A 13F discloses shares held and their market value as of quarter-end — not the price the investor actually paid, or which week of the quarter they bought. A position reported this quarter could have been built gradually over three months at a range of prices, so "New Position" tells you a great investor found the stock interesting enough to own sometime in that window, not the exact price they judged it worth buying at. Filings also lag by up to 45 days after quarter-end, so what you're seeing is never quite real-time.