13F Filing
MARKETSDEFINITION
A quarterly disclosure the SEC requires from institutional investment managers overseeing more than $100 million in U.S. equities — including Strategy stock and spot bitcoin ETF shares — listing what they held as of the previous quarter's end.
Filers have 45 days after each quarter ends to disclose their holdings, so a 13F filed in mid-August reports positions as of June 30 — activity that's already six weeks old the day it becomes public, and possibly stale by months if the manager has since traded. That lag is why 13F-driven headlines ("Fund X doubles its stake") describe history, not a live signal.
13Fs only cover long U.S. equity and options positions — they don't show short positions, non-U.S. holdings, or direct spot bitcoin. For a company like Strategy, that means the filings capture who owns the stock, not who owns bitcoin directly, which is one reason 13F-based headlines can overstate what they reveal about bitcoin sentiment specifically.
IN A SENTENCE
"The fund's 13F shows it doubled its Strategy stake last quarter — good context, but six weeks stale the day it was filed."
Key facts
Common questions
Where can I look up a fund's 13F filings?
SEC EDGAR publishes every 13F filing for free. Third-party trackers reformat the same data into searchable tables, but the underlying source is always EDGAR.
Do 13Fs show bitcoin ETF holdings too?
Yes — spot bitcoin ETF shares are U.S.-listed equities, so they appear in 13Fs the same way Strategy stock does, which is how outlets track institutional ETF ownership changes each quarter.