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I

Interactive Brokers Group, Inc. (IBKR)

NMS – Real Time Price. Currency in USD

64.20

-2.00 (-3.02%)

At close: Mar 27, 2026, 4:00 PM EDT

64.00

-0.20 (-0.31%)

After-hours: Mar 27, 2026, 7:59 PM EDT

  • Summary
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Ownership

Major Holders

Breakdown
2.80%% of Shares Held by All Insider
88.95%% of Shares Held by Institutions
91.51%% of Float Held by Institutions
1307Number of Institutions Holding Shares

Top Institutional Holders

HolderSharesDate Reported% OutValue
Vanguard Group Inc52.25M2025-12-3111.73%$3.35B
Blackrock Inc.31.68M2025-12-317.11%$2.03B
State Street Corporation18.84M2025-12-314.23%$1.21B
Cantillon Capital Management LLC12.76M2025-12-312.86%$819.19M
Kayne Anderson Rudnick Investment Management LLC11.21M2025-12-312.51%$719.47M
Geode Capital Management, LLC10.20M2025-12-312.29%$655.06M
Orbis Allan Gray Ltd9.27M2025-12-312.08%$595.37M
Greenwich Wealth Management Llc9.19M2025-12-312.06%$589.68M
Invesco Ltd.8.29M2025-12-311.86%$532.11M
Wellington Management Group, LLP8.28M2025-12-311.86%$531.85M

Top Mutual Fund Holders

HolderSharesDate Reported% OutValue
VANGUARD INDEX FUNDS-Vanguard Total Stock Market Index Fund13.33M2025-12-312.99%$855.85M
VANGUARD INDEX FUNDS-Vanguard 500 Index Fund11.23M2025-12-312.52%$720.93M
VANGUARD INDEX FUNDS-Vanguard Mid-Cap Index Fund9.21M2025-12-312.07%$591.21M
iShares Trust-iShares Core S&P 500 ETF5.73M2026-01-311.29%$367.93M
Fidelity Concord Street Trust-Fidelity 500 Index Fund5.66M2026-01-311.27%$363.27M
SPDR S&P 500 ETF TRUST5.42M2025-12-311.22%$370.72M
SPDR S&P 500 ETF Trust5.42M2025-12-311.22%$393.81M
SPDR S&P 500 ETF TRUST-State Street SPDR S&P 500 ETF Trust5.34M2026-01-311.20%$342.78M
American Century Mutual Funds, Inc.-ULTRA FUND3.74M2026-01-310.84%$240.11M
VANGUARD INDEX FUNDS-Vanguard Mid-Cap Growth Index Fund3.54M2025-12-310.79%$227.21M
VANGUARD INDEX FUNDS-Vanguard Growth Index Fund3.28M2025-12-310.74%$210.53M
SELECT SECTOR SPDR TRUST-State Street Financial Select Sector SPDR ETF3.19M2026-01-310.72%$204.80M