Investors know little about hedge fund portfolios. A regulatory filing called Form 13-F provides a snapshot of some holdings.
Form 13F is a quarterly report of equity holdings filed by institutional investment managers with at least $100 million in equity assets under management, as required by the United States Securities and Exchange Commission (SEC).
These investors include banks, insurance companies, hedge funds, investment companies, foundations, and pension funds. Form 13F only reports long positions. Short positions are not required to be disclosed and are not reported.