v3.25.2
Document and Entity Information
Jul. 17, 2025
Cover [Abstract]  
Document Type 8-K
Amendment Flag false
Document Period End Date Jul. 17, 2025
Entity File Number 001-33440
Entity Registrant Name Interactive Brokers Group, Inc.
Entity Central Index Key 0001381197
Entity Incorporation, State or Country Code DE
Entity Tax Identification Number 30-0390693
Entity Address, Address Line One One Pickwick Plaza
Entity Address, City or Town Greenwich
Entity Address, State or Province CT
Entity Address, Postal Zip Code 06830
City Area Code 203
Local Phone Number 618-5800
Title of 12(b) Security Class A common stock
Trading Symbol IBKR
Security Exchange Name NASDAQ
Entity Emerging Growth Company false
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false