AET
E194006
AET is the former stock ticker symbol for Aetna Inc., a major U.S. health insurance and managed care company.
All labels observed (1)
| Label | Occurrences |
|---|---|
| AET canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1722497 — 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: AET Context triple: [Aetna, tickerSymbol, AET]
-
A.
AEC
AEC was the common abbreviation for the United States Atomic Energy Commission, the federal agency that oversaw nuclear energy development and regulation in the mid-20th century.
-
B.
AEC
AEC is a European network and advocacy organization representing higher music education institutions such as conservatoires, academies, and music universities.
-
C.
AEC
AEC is a regional economic integration initiative among ASEAN member states aimed at creating a single market and production base to enhance competitiveness and economic growth in Southeast Asia.
-
D.
AAR
AAR is the American Association of Railroads' wheel arrangement classification system commonly used to describe locomotive axle configurations in North America.
-
E.
EET
EET is a time zone used in parts of Eastern Europe and the Eastern Mediterranean, typically two hours ahead of Coordinated Universal Time (UTC+2).
- 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: AET Target entity description: AET is the former stock ticker symbol for Aetna Inc., a major U.S. health insurance and managed care company.
-
A.
AEC
AEC was the common abbreviation for the United States Atomic Energy Commission, the federal agency that oversaw nuclear energy development and regulation in the mid-20th century.
-
B.
AEC
AEC is a European network and advocacy organization representing higher music education institutions such as conservatoires, academies, and music universities.
-
C.
AEC
AEC is a regional economic integration initiative among ASEAN member states aimed at creating a single market and production base to enhance competitiveness and economic growth in Southeast Asia.
-
D.
AAR
AAR is the American Association of Railroads' wheel arrangement classification system commonly used to describe locomotive axle configurations in North America.
-
E.
EET
EET is a time zone used in parts of Eastern Europe and the Eastern Mediterranean, typically two hours ahead of Coordinated Universal Time (UTC+2).
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf | stock ticker symbol ⓘ |
| acquirer |
CVS Health
ⓘ
surface form:
CVS Health Corporation
|
| acquirerExchange | New York Stock Exchange ⓘ |
| acquirerTicker |
CVS Health
ⓘ
surface form:
CVS
|
| acquisitionAnnouncementYear | 2017 ⓘ |
| acquisitionCompletionDate | 2018-11-28 ⓘ |
| acquisitionCompletionYear | 2018 ⓘ |
| associatedIndexMembership |
S&P 500 Index
ⓘ
surface form:
S&P 500 (historical)
|
| associatedWith | healthcare sector ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| currency | USD ⓘ |
| delistingReason | acquisition of Aetna Inc. by CVS Health ⓘ |
| delistingYear | 2018 ⓘ |
| exchangeListedOn | New York Stock Exchange ⓘ |
| headquartersCountryOfIssuer |
United States of America
ⓘ
surface form:
United States
|
| industry |
health insurance
ⓘ
managed care ⓘ |
| issuerCompetitor |
Anthem Inc.
ⓘ
Cigna Corporation ⓘ Humana ⓘ
surface form:
Humana Inc.
UnitedHealth Group ⓘ |
| issuerCustomerType |
employers
ⓘ
governmental entities ⓘ individuals ⓘ |
| issuerFoundedAs |
Aetna
ⓘ
surface form:
Aetna Life Insurance Company
|
| issuerHeadquartersCity | Hartford ⓘ |
| issuerHeadquartersState | Connecticut ⓘ |
| issuerLegalName |
Aetna
ⓘ
surface form:
Aetna Inc.
|
| issuerMajorBusinessLine |
health insurance plans
ⓘ
managed care services ⓘ pharmacy benefits management (through partners and later acquirer) ⓘ |
| issuerNotableEvent |
attempted merger with Humana Inc. blocked by U.S. regulators
ⓘ
subject to U.S. Affordable Care Act market changes ⓘ |
| issuerOriginalBusiness | life insurance ⓘ |
| issuerProductType |
Medicaid services
ⓘ
Medicare plans ⓘ behavioral health services ⓘ dental insurance ⓘ disability insurance ⓘ group life insurance ⓘ medical insurance ⓘ pharmacy benefits ⓘ |
| refersTo |
Aetna
ⓘ
surface form:
Aetna Inc.
|
| regulatoryEnvironment | U.S. health insurance regulation ⓘ |
| sector | Health Care ⓘ |
| securityType | common stock ⓘ |
| tickerStatus | former ⓘ |
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: AET Description of subject: AET is the former stock ticker symbol for Aetna Inc., a major U.S. health insurance and managed care company.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.