Deep research on hedge fund strategies, 13F filings analysis, and institutional capital flows — written for serious investors.
We backtested copying Stanley Druckenmiller's 13F with the 45-day lag: 16.0% a year vs 14.7% for SPY since 2012, with far deeper d…
Berkshire Hathaway's Q2 2026 13F: 29 positions, top 5 holdings are 68.7% of the portfolio, Alphabet added, Constellation Brands ex…
Situational Awareness LP's Q2 2026 13F: 19 positions, SanDisk and Micron are 55.6% combined, six full exits including AMD and Nvid…
We backtested 500 institutional managers' disclosed long books against SPY. The results will surprise you.
When 3,000 hedge funds own the same 10 stocks, the crowding risk becomes systemic. Here's what the data shows.
The biggest Q4→Q1 sector shifts in 13F history — and what they historically meant for equity markets in the following quarter.
Not raw return. Not AUM size. The purest measure of manager skill — Sharpe Ratio — and who consistently tops it.
From filtering the Rankings leaderboard to constructing a diversified composite — a practical tutorial for individual investors.
The 45-day lag, the missing short book, the survivorship bias — an honest accounting of what following 13Fs actually costs you.