What is 13F?

Definition

The 13F report is a document that institutional investors managing over $100 million in assets must file quarterly with the U.S. Securities and Exchange Commission (SEC). This report discloses their stock holdings, providing market participants with insights into the investment activities of large investors.

Origin

The origin of the 13F report dates back to 1975 when the U.S. Congress enacted Section 13(f) of the Securities Exchange Act, mandating large institutional investors to regularly disclose their holdings to enhance market transparency and protect investor interests.

Categories and Features

The 13F report primarily includes information on holdings in stocks, options, convertible bonds, and other securities. Its features include offering insights into the investment strategies of large investors, aiding in market trend analysis. However, the 13F report only discloses long positions and does not include short positions or other derivative transactions.

Case Studies

A typical example is Warren Buffett's Berkshire Hathaway, whose 13F reports are closely watched by investors to understand changes in its investment strategy. Another example is Bridgewater Associates, whose 13F reports reveal its diversified portfolio across global markets.

Common Issues

Common issues for investors include the timeliness of the 13F report, as it is typically filed within 45 days after the quarter ends, which may lead to outdated information. Additionally, the 13F report does not include holdings in international stocks or private companies, which may limit its comprehensiveness.