How to Read 13F Filings: A Complete Guide
If you want to know what Warren Buffett, Ray Dalio, or any institutional investor with over $100M is buying, you need to understand 13F filings. This guide explains everything you need to know.
What is a 13F Filing?
A 13F is a quarterly report that the SEC requires from institutional investment managers who:
Control at least $100 million in qualifying assets
Are based in the United States
Invest in U.S. equity securitiesWho Files 13Fs?
Hedge funds (Bridgewater, Citadel, Renaissance)
Mutual funds (Vanguard, Fidelity, BlackRock)
Pension funds
Insurance companies
Bank trust departmentsWhat's Included in a 13F?
Each 13F filing contains:
Stock positions - Name and CUSIP of each holding
Share count - Number of shares owned
Market value - Value in thousands of dollars
Investment discretion - Sole, shared, or none
Voting authority - Sole, shared, or none
Put/Call indicator - For options positionsWhat's NOT Included
Short positions
Bonds and fixed income
Foreign stocks
Cash holdings
Private investments
Options strategies (only long puts/calls)How to Analyze 13F Data
1. Compare Quarter-over-Quarter
The real insight comes from changes:
New positions - What are they buying?
Increased positions - Where are they adding?
Decreased positions - Where are they trimming?
Closed positions - What are they selling completely?2. Look at Conviction
High-conviction bets often mean:
Large position size (>5% of portfolio)
Significant increases (>25% position growth)
Multiple top funds buying the same stock3. Consider the 45-Day Delay
13F filings are due 45 days after quarter end:
Q1 (Jan-Mar) → Filed by May 15
Q2 (Apr-Jun) → Filed by Aug 14
Q3 (Jul-Sep) → Filed by Nov 14
Q4 (Oct-Dec) → Filed by Feb 14Important: Positions may have changed significantly since the filing date!
Common Mistakes to Avoid
Copying trades blindly - Funds may have already sold
Ignoring position size - A tiny position isn't conviction
Forgetting about shorts - 13Fs don't show short positions
Missing the context - Understand why they might be buyingUsing HedgeTrack for 13F Analysis
HedgeTrack makes 13F analysis easy:
Track top funds - See what the biggest investors own
Compare changes - Quarter-over-quarter position changes
Find convergence - Multiple funds buying the same stock
Performance tracking - How are fund picks performing?Start Tracking Hedge Funds →
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This guide is for educational purposes. Always do your own research before investing.