Roughly 45 days after every quarter closes, a few hundred of the biggest money managers in the country have to tell you what they own.
The document is called a Form 13F, one of the rare places where an ordinary investor sees what the professionals did instead of what they said on television
It is also one of the easiest filings in finance to misread. A 13F leaves out short positions, foreign listings, and anything bought after the quarter closed. What it does show arrives stripped of context.
It shows positions, not intentions. It shows the end of a decision, not the beginning. And because it arrives weeks after the fact, the story that gets written is usually about the most famous name in the file, not the biggest number in it.