John Meriwether
E814274
John Meriwether is an American financier best known for leading Salomon Brothers’ bond-arbitrage group and later founding the hedge fund Long-Term Capital Management.
All labels observed (1)
| Label | Occurrences |
|---|---|
| John Meriwether canonical | 3 |
How this entity was disambiguated
This entity first appeared as the object of triple T9666642 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: John Meriwether Context triple: [Salomon Brothers, notableEmployee, John Meriwether]
-
A.
David Meriwether
David Meriwether was an American politician and statesman from Georgia who served in the U.S. Congress in the early 19th century.
-
B.
Fischer Black
Fischer Black was an American economist and financial theorist best known for co-developing the Black–Scholes option pricing model, a foundational tool in modern quantitative finance.
-
C.
David E. Shaw
David E. Shaw is an American computer scientist, hedge fund manager, and entrepreneur best known for founding the quantitative investment firm D. E. Shaw & Co.
-
D.
Michael Burry
Michael Burry is an American investor and hedge fund manager best known for predicting and profiting from the U.S. housing market collapse before the 2008 financial crisis.
-
E.
Freddy Delbaen
Freddy Delbaen is a Belgian mathematician renowned for his contributions to probability theory and mathematical finance, particularly in the development of coherent risk measures.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: John Meriwether Target entity description: John Meriwether is an American financier best known for leading Salomon Brothers’ bond-arbitrage group and later founding the hedge fund Long-Term Capital Management.
-
A.
David Meriwether
David Meriwether was an American politician and statesman from Georgia who served in the U.S. Congress in the early 19th century.
-
B.
Fischer Black
Fischer Black was an American economist and financial theorist best known for co-developing the Black–Scholes option pricing model, a foundational tool in modern quantitative finance.
-
C.
David E. Shaw
David E. Shaw is an American computer scientist, hedge fund manager, and entrepreneur best known for founding the quantitative investment firm D. E. Shaw & Co.
-
D.
Michael Burry
Michael Burry is an American investor and hedge fund manager best known for predicting and profiting from the U.S. housing market collapse before the 2008 financial crisis.
-
E.
Freddy Delbaen
Freddy Delbaen is a Belgian mathematician renowned for his contributions to probability theory and mathematical finance, particularly in the development of coherent risk measures.
- F. None of above. chosen
Statements (45)
| Predicate | Object |
|---|---|
| instanceOf |
financier
ⓘ
hedge fund ⓘ human ⓘ investment management firm ⓘ |
| activeIn |
fixed-income arbitrage
ⓘ
relative-value trading ⓘ |
| activeYears | 1970s–2000s ⓘ |
| associatedWith |
Myron Scholes
ⓘ
Robert C. Merton ⓘ |
| collapseYear | 1998 ⓘ |
| countryOfCitizenship | United States of America ⓘ |
| countryOfOrigin | United States of America ⓘ |
| dateOfBirth | 1947 ⓘ |
| educatedAt |
Northwestern University
ⓘ
University of Chicago ⓘ |
| employer | Salomon Brothers ⓘ |
| fieldOfStudy |
economics
ⓘ
finance ⓘ |
| founded | Long-Term Capital Management ⓘ |
| foundedBy |
John Meriwether
ⓘ
John Meriwether ⓘ |
| genreOfActivity | quantitative finance ⓘ |
| hadPartner |
Myron Scholes
ⓘ
Robert C. Merton ⓘ |
| hasEmployer | Long-Term Capital Management ⓘ |
| industry | investment management ⓘ |
| influencedBy |
modern portfolio theory
ⓘ
options pricing theory ⓘ |
| knownFor |
role in the 1998 Long-Term Capital Management crisis
ⓘ
use of high leverage in trading strategies ⓘ |
| laterFounded |
JM Advisors Management
ⓘ
JWM Partners ⓘ |
| notableFor |
founding Long-Term Capital Management
ⓘ
leading the bond-arbitrage group at Salomon Brothers ⓘ pioneering large-scale bond arbitrage on Wall Street ⓘ recruiting Nobel laureates to Long-Term Capital Management ⓘ use of highly leveraged fixed-income arbitrage strategies ⓘ |
| notableWork | development of bond-arbitrage strategies ⓘ |
| occupation |
bond trader
ⓘ
financier ⓘ hedge fund manager ⓘ |
| placeOfBirth | Chicago ⓘ |
| positionHeld | head of bond-arbitrage group at Salomon Brothers ⓘ |
| reasonForNotability | near-collapse that prompted a coordinated bailout by major banks and the Federal Reserve ⓘ |
| residence | New York ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: John Meriwether Description of subject: John Meriwether is an American financier best known for leading Salomon Brothers’ bond-arbitrage group and later founding the hedge fund Long-Term Capital Management.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.