IEX
E101198
IEX is a U.S. stock exchange known for its investor-protection focus and innovative market structure designed to reduce high-frequency trading advantages.
All labels observed (2)
| Label | Occurrences |
|---|---|
| IEX canonical | 1 |
| Investors Exchange | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T858531 — 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: IEX Context triple: [NYSE National, competesWith, IEX]
-
A.
Xetra
Xetra is an electronic trading system operated by Deutsche Börse that serves as the primary platform for trading German and other European securities.
-
B.
Intercontinental Exchange
Intercontinental Exchange is a global operator of financial and commodity markets and exchanges, including the New York Stock Exchange, providing trading, clearing, data, and listing services.
-
C.
NASDAQ
NASDAQ is a major American electronic stock exchange known for listing many of the world’s leading technology and growth companies.
-
D.
Nasdaq Data Link
Nasdaq Data Link is a financial data platform that provides access to a wide range of market, economic, and alternative datasets via APIs and tools for investors, analysts, and developers.
-
E.
American Stock Exchange
The American Stock Exchange was a major U.S. securities exchange known for trading stocks, options, and exchange-traded funds, particularly of smaller and mid-sized companies, before being acquired and rebranded by the New York Stock Exchange.
- 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: IEX Target entity description: IEX is a U.S. stock exchange known for its investor-protection focus and innovative market structure designed to reduce high-frequency trading advantages.
-
A.
Xetra
Xetra is an electronic trading system operated by Deutsche Börse that serves as the primary platform for trading German and other European securities.
-
B.
Intercontinental Exchange
Intercontinental Exchange is a global operator of financial and commodity markets and exchanges, including the New York Stock Exchange, providing trading, clearing, data, and listing services.
-
C.
NASDAQ
NASDAQ is a major American electronic stock exchange known for listing many of the world’s leading technology and growth companies.
-
D.
Nasdaq Data Link
Nasdaq Data Link is a financial data platform that provides access to a wide range of market, economic, and alternative datasets via APIs and tools for investors, analysts, and developers.
-
E.
American Stock Exchange
The American Stock Exchange was a major U.S. securities exchange known for trading stocks, options, and exchange-traded funds, particularly of smaller and mid-sized companies, before being acquired and rebranded by the New York Stock Exchange.
- F. None of above. chosen
Statements (43)
| Predicate | Object |
|---|---|
| instanceOf |
financial market infrastructure
ⓘ
stock exchange ⓘ |
| abbreviationOf |
IEX
self-linksurface differs
ⓘ
surface form:
Investors Exchange
|
| aimsTo |
improve execution quality for investors
ⓘ
increase market transparency ⓘ reduce high-frequency trading advantages ⓘ |
| competesWith |
Cboe Global Markets
ⓘ
NASDAQ ⓘ
surface form:
Nasdaq
New York Stock Exchange ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| focus |
fair and orderly markets
ⓘ
investor protection ⓘ |
| foundedFor | addressing perceived inequities in U.S. equity markets ⓘ |
| grantedExchangeStatusBy |
Securities and Exchange Commission
ⓘ
surface form:
U.S. Securities and Exchange Commission
|
| hasClientType |
broker-dealers
ⓘ
institutional investors ⓘ |
| hasFeature |
innovative market structure
ⓘ
latency mechanism to reduce high-frequency trading advantages ⓘ speed bump ⓘ |
| hasMarketData |
proprietary market data products
ⓘ
public consolidated market data feeds ⓘ |
| hasMarketModel | electronic limit order book ⓘ |
| hasMission | to build fairer markets ⓘ |
| hasOrderTypes | various limit and market order types ⓘ |
| hasPolicy |
designed to mitigate latency arbitrage
ⓘ
designed to protect displayed quotes ⓘ |
| hasRegulatoryStatus | registered national securities exchange in the United States ⓘ |
| hasTechnologyFocus | low-latency but fair access trading infrastructure ⓘ |
| hasTradingHours | regular U.S. equity market hours ⓘ |
| hasTradingMechanism | continuous limit order trading ⓘ |
| hasType | national securities exchange ⓘ |
| industry |
financial services
ⓘ
securities exchange ⓘ |
| knownFor |
challenging traditional U.S. stock exchange models
ⓘ
investor-protection focus ⓘ speed bump to slow down certain orders ⓘ |
| locatedIn |
New York
ⓘ
New York City ⓘ United States of America ⓘ
surface form:
United States
|
| offers | trading in U.S.-listed equities ⓘ |
| operatesIn | U.S. equity markets ⓘ |
| regulator |
Securities and Exchange Commission
ⓘ
surface form:
U.S. Securities and Exchange Commission
|
| subjectOf | book "Flash Boys" by Michael Lewis ⓘ |
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: IEX Description of subject: IEX is a U.S. stock exchange known for its investor-protection focus and innovative market structure designed to reduce high-frequency trading advantages.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Investors Exchange