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Who owns Interactive Brokers Group (IBKR) stock

1,048 funds reported Interactive Brokers Group (IBKR) shares in their latest 13F filings, worth $34.4B in all. The largest holder is Vanguard Group ($3.4B). Last quarter 536 funds added to their stakes and 415 cut them.

Largest holders of IBKR (13F)Largest holders of IBKR (13F)Vanguard Group$3.4BBlackRock$2.9BVanguard Capital Management LLC$2.5BState Street$1.7BFMR LLC$1.0BGeode Capital Management, LLC$925MInvesco$845MVanguard Portfolio Management LLC$759MTwo Sigma Investments, LP$726MWellington Management Group LLP$643M

Largest holders (13F)

FundSharesValueChangeQuarter
Vanguard Group52,254,357$3.4Bdecrease2025-12-31
BlackRock33,129,663$2.9Bincrease2026-06-30
Vanguard Capital Management LLC28,349,920$2.5Bincrease2026-06-30
State Street19,437,767$1.7Bincrease2026-06-30
FMR LLC11,828,151$1.0Bdecrease2026-06-30
Geode Capital Management, LLC10,641,906$925Mincrease2026-06-30
Invesco9,708,980$845Mincrease2026-06-30
Vanguard Portfolio Management LLC8,724,292$759Mdecrease2026-06-30
Two Sigma Investments, LP8,340,400$726Mincrease2026-06-30
Wellington Management Group LLP7,382,141$643Mdecrease2026-06-30
Kayne Anderson Rudnick Investment Management LLC6,365,531$554Mdecrease2026-06-30
Orbis Allan Gray6,069,270$528Mdecrease2026-06-30
London & Capital Asset Management5,975,636$520Mincrease2026-06-30
Bank of America5,954,055$518Mdecrease2026-06-30
American Century Companies5,583,028$486Mdecrease2026-06-30

Interactive Brokers Group's latest quarter

Interactive Brokers Group, Q3 2026: revenue $1.9B (+16% year over year), operating margin 78.2%, net earnings $314M, operating cash flow $858M. The chart follows the revenue to costs, profit and cash.

Questions

Who owns the most IBKR stock?

By the latest 13F filings: Vanguard Group ($3.4B); BlackRock ($2.9B); Vanguard Capital Management LLC ($2.5B); State Street ($1.7B); FMR LLC ($1.0B).

What is the short interest in IBKR?

13,050,620 shares were sold short at the 2026-10-15 settlement, -4.84% of the float.

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Updated Nov 8, 2026. Read automatically from SEC filings and public data; errors are possible. Not investment advice.