Glossary

The finance jargon stays — here’s what it means.

13F (Form 13F-HR): A quarterly SEC report required from institutional investment managers overseeing $100M+ in U.S.-listed equities. It discloses long positions as of quarter end, and is due within 45 days.
13F-NT: A 'notice' variant filed when the manager's holdings are reported on another manager's 13F instead (e.g. a parent company files for its subsidiaries).
AUM (Assets Under Management): Here: the total value of U.S.-listed holdings reported on the 13F. A fund's true AUM is usually larger — 13Fs exclude shorts, most bonds, foreign listings, and private assets.
Amendment (13F-HR/A): A revision to a previously filed 13F. A RESTATEMENT replaces the original filing entirely; a NEW HOLDINGS amendment adds positions that were previously confidential.
CIK: Central Index Key — the SEC's permanent ID number for a filer. Manager URLs on this site use the CIK because names change; CIKs don't.
Confidential treatment: The SEC can let a manager omit positions it is still accumulating from the public filing. When the confidentiality lapses, the positions appear via a NEW HOLDINGS amendment — badged REVEALED here.
Conviction: A position's share of the fund's total reported portfolio. A 10% position in a focused fund says more than a 0.1% position in an index giant, so holder tables here sort by conviction.
CUSIP: A 9-character ID for a specific security. 13Fs identify holdings by CUSIP; we map CUSIPs to tickers via OpenFIGI. Some (private placements, foreign issues) don't map — they're shown without a ticker badge.
Holder count: The number of 13F filers reporting a position in a security in a given quarter. Rising holder counts mean institutions are piling in.
Investment discretion: Whether the manager decides trades itself (SOLE) or shares/delegates that authority (DFND/OTR). Reported per position on the 13F.
Options (PUT/CALL): 13Fs include listed options positions, marked PUT or CALL. They're excluded from holdings tables here by default because their reported 'value' (underlying notional) distorts portfolio percentages.
Other included managers: One 13F can report for multiple affiliated managers. The cover page lists them; those funds then don't file separately.
Quarter-over-quarter (QoQ) changes: The difference between consecutive filings: NEW, ADDED, TRIMMED, SOLD OUT, or HELD (within ±5% share change). Computed against the amended, final version of the prior quarter.
Shares vs principal amount: Most positions report share counts (SH). Convertible or debt instruments report principal amount (PRN) instead — dollar changes matter more than 'share' changes for those.
Superseded filing: A filing replaced by a later restatement. Superseded data is kept but excluded from all totals and rankings on this site to avoid double counting.
Value (as reported): Position market value at quarter end, as filed. Before 2023 the SEC required values in thousands of dollars; from 2023 they're full dollars. We normalize everything to dollars and flag suspect figures rather than silently fixing them.