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Interactive Brokers

US · IBKR #106 by market cap Listed 1970 +2.61%
90.69 +2.31 +2.61%
Collector offline (last heartbeat: 308537s ago) · 2026-09-18 20:02
Pre-market 89.84 +1.65%
After-hours 90.69 0.00%
Overnight 89.50 +1.27%
Market cap
41.09B
P/B
6.96
EPS
2.22
Reader sentiment Are you bullish or bearish on IBKR?

Anonymous reader poll. Unscientific, not investment advice.

Quant Ownership Signal how this is computed

Distributing
  • The number of reporting institutions decreased by 8 in the most recent period (2026/Q3).
  • Total institutional ownership fell 0.6 percentage points.

Institutional ownership

Held by institutions
87.39% -0.56pp
Institutions
1,320 -8
As of
2026/Q3 vs. prior period

Holder types

Mutual Fund68.31%
Hedge Fund7.42%
Public Company3.79%
Private Company3.20%
Individual/Insider2.83%
Government Pension Fund2.31%
Sovereign Wealth Fund1.44%
Family Office/Trust0.29%
Government0.20%
Other10.20%

Top holders

HolderStake
BlackRock7.31%
Vanguard Capital Management, LLC6.81%
State Street Global Advisors4.29%
Geode Capital Management, LLC2.35%
Greenwich Wealth Management, LLC2.19%
Other77.05%

Insiders

12 filings tracked · 2 buys · 6 sells

NameRoleStake
Thomas Peterffy Founder & Chairperson 1.34%
Paul Brody CFO, Treasurer, Secretary & Director 0.58%
Milan Galik Chief Executive Officer 0.55%
Earl Nemser Independent Vice Chairperson 0.25%
Thomas A. Frank Executive Vice President 0.04%
Lawrence Harris Lead Independent Director 0.04%
Denis Mendonca Chief Accounting Officer 0.02%
Nicole Yuen Independent Director 0.00%
William Peterffy Director 0.00%
Jill Bright Director 0.00%

Quote time 2026-09-18 20:02:13 · For reference only, not investment advice.