What is a 13F filing?
Form 13F is a quarterly holdings report filed by institutional investment managers that meet the SEC reporting threshold. It lists certain long U.S.-listed securities and commonly includes the issuer, security class, CUSIP, market value and share or principal amount as of the quarter end.
A 13F is not a complete or current portfolio. It arrives after the reporting date, excludes many asset types and generally does not reveal short positions or the investment thesis behind a holding. CaymanBot makes the disclosed long holdings easier to compare while keeping those limitations visible.
How to read quarterly holding changes
The most useful question is often not “what does this fund own?” but “what changed?” A new position, large increase or complete exit can guide further research. Changes can also reflect portfolio rebalancing, mergers, option exercises or reporting differences, so they need context.
- Compare consecutive quarters rather than viewing one filing in isolation.
- Measure a position relative to the disclosed portfolio, not only by dollar value.
- Account for stock splits, mergers and price changes between reporting dates.
- Remember that the filing may be weeks old when it becomes public.
- Use company fundamentals, news and current price action to validate a thesis.
Combine institutional and insider data
CaymanBot’s Big Money view sits alongside congressional transactions, SEC insider filings, news, earnings, charts and options flow. This connected data helps you move from an interesting ownership change to a more complete company review.
Holdings data is based on public filings and may be delayed, incomplete or amended. It is intended for research and should not be treated as a replication of any manager’s current portfolio.
To compare fund holdings with what members of Congress disclose, open the congressional stock tracker.