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Interactive Brokers Group, Inc. 13F holders

1,123 funds reported a position in Interactive Brokers Group, Inc. in their 13F for the quarter ended 30 June 2026, together 388.5 million shares worth $33.86 billion. Against the quarter before, 165 opened a position, 391 added, 383 trimmed and 68 sold out; together they bought a net 1.3 million shares. The largest holders: BlackRock, Inc., Vanguard Capital Management LLC and State Street Corp.

Funds holding1,123+117 on Q1 2026
Shares they held388.5Mworth $33.86 billion
Net bought on the quarter1.3M sharesabout $117.5 million at the funds' values
Funds buying to selling556 to 451opened or added, to cut or sold
Opened 165Added 391Held 173Trimmed 383Sold out 68
Opened: 165 fundsAdded: 391 fundsHeld: 173 fundsTrimmed: 383 fundsSold out: 68 funds

What each fund did in IBKR against its 13F for the quarter before; a change under 0.1% of a holding counts as held

Q3 2024: 587 funds, 387.5 million shares587Q3 2024Q4 2024: 712 funds, 374.4 million shares712Q4 2024Q1 2025: 749 funds, 380.7 million shares749Q1 2025Q2 2025: 805 funds, 382.8 million shares805Q2 2025Q3 2025: 916 funds, 389.8 million shares916Q3 2025Q4 2025: 984 funds, 386.3 million shares984Q4 2025Q1 2026: 1,006 funds, 379.6 million shares1,006Q1 2026Q2 2026: 1,123 funds, 388.5 million shares1,123Q2 2026

Funds reporting a position in IBKR in their 13F, each quarter; hover a bar for the shares they held

Filed so far for the quarter to 30 September 2026

4,696 funds have filed their 13F for the quarter so far; the rest are due by 16 November 2026. Of those, 532 reported a position in Interactive Brokers Group, Inc.: 45 opened one, 205 added, 163 trimmed and 31 sold out, a net 2.1 million shares sold.

FundChange in sharesShares nowStatusFiling
Barclays PLC-1,538,5971,080,077trimmed13F
KBC Group NV-1,444,447584,538trimmed13F
Amundi+1,400,6173,430,301added13F
Assenagon Asset Management S.A.-1,009,157281,185trimmed13F
Egerton Capital (UK) LLP-968,7123,160,704trimmed13F
Deutsche Bank AG-916,9471,157,719trimmed13F
Vontobel Holding Ltd.+375,022405,261added13F
Trinity Street Asset Management LLP+350,499350,499new13F
Geode Capital Management, LLC+322,22710,964,133added13F
Allspring Global Investments Holdings, LLC+264,7801,479,094added13F
Natixis+226,632322,245added13F
Aberdeen Group plc+224,575255,521added13F
Inspire Investing, LLC-178,661156,063trimmed13F
DekaBank Deutsche Girozentrale+172,761178,804added13F
LBP Am SA+144,844144,844new13F
TimesSquare Capital Management, LLC-133,0731,291,416trimmed13F
TD Waterhouse Canada Inc.+129,177645,823added13F
Bank Julius Baer & Co. Ltd, Zurich+114,004267,356added13F
Hosking Partners LLP-110,991950,149trimmed13F
PFA Pension, Forsikringsaktieselskab+108,948266,684added13F
Citigroup Inc.+100,825730,695added13F
Mitsubishi UFJ Asset Management Co., Ltd.+93,3861,144,190added13F
Cookson Peirce & Co. Inc.+90,920463,359added13F
Tokio Marine Asset Management Co. Ltd+77,95690,490added13F
Concurrent Investment Advisors, LLC+75,24899,333added13F

The largest moves in the name among the funds that have filed, against each fund's previous 13F.

The well-known funds

Of the 44 funds followed here, 1 reported a position in Interactive Brokers Group, Inc. in a 13F for the quarter ended 30 September 2026, and 12 more in a 13F for an earlier quarter, the latest each has filed. The largest: FMR LLC, 11.8 million shares worth $1.03 billion, 0.0% of its reported book (its 13F for the quarter ended 30 June 2026). In the quarter, 1 fund added or opened a position and 0 trimmed or sold out; together they bought a net 322,227 shares, about $27.4 million at the funds' own value per share on 30 September 2026. A change under 0.1% of a holding counts as held.

FundSharesValueOf its bookChange on the quarterStatusQuarter endedFiling
FMR LLC11,828,151$1.03 billion0.0%-673,133trimmed30 June 2026, an earlier quarter13F
Geode Capital Management10,964,133$932.6 million0.0%+322,227added30 September 202613F
Two Sigma Investments8,340,400$725.9 million0.6%+27,429added30 June 2026, an earlier quarter13F
Norges Bank6,334,173$551.3 million0.1%held30 June 2026, an earlier quarter13F
Viking Global Investors4,830,748$420.5 million1.2%+3,436,419added30 June 2026, an earlier quarter13F
Citadel Advisors1,081,743$94.2 million0.1%+345,470added30 June 2026, an earlier quarter13F
Point72 Asset Management867,084$75.5 million0.1%+805,392added30 June 2026, an earlier quarter13F
Millennium Management772,059$67.2 million0.0%+186,259added30 June 2026, an earlier quarter13F
Lone Pine Capital577,666$50.3 million0.3%+577,666new30 June 2026, an earlier quarter13F
Soros Fund Management151,470$13.2 million0.2%-493,874trimmed30 June 2026, an earlier quarter13F
Renaissance Technologies63,900$5.6 million0.0%-397,800trimmed30 June 2026, an earlier quarter13F
Bridgewater Associates42,076$3.7 million0.0%-30,261trimmed30 June 2026, an earlier quarter13F
Alyeska28,841$2.5 million0.0%+28,841new30 June 2026, an earlier quarter13F
Value is what the fund reported.
Read moreChange is shares against the fund's previous 13F; a fund with one filing read shows no change. 13Fs cover long US positions of managers above $100 million and are filed up to 45 days after the quarter.

The largest holders

FundSharesShare of allValueOf its bookChange in sharesFiling
BlackRock, Inc.33,129,6638.53%$2.88 billion0.04%+1,754,62613F
Vanguard Capital Management LLC28,349,9207.30%$2.47 billion0.05%+169,55913F
State Street Corp.19,437,7675.00%$1.69 billion0.05%+345,66213F
FMR LLC11,828,1513.04%$1.03 billion0.04%-673,13313F
Geode Capital Management, LLC10,641,9062.74%$925.5 million0.05%+198,29913F
Greenwich Wealth Management LLC9,921,7552.55%$863.6 million31.43%-2,28813F
Invesco Ltd.9,708,9802.50%$845.1 million0.07%+61,81213F
Vanguard Portfolio Management LLC8,724,2922.25%$759.4 million0.03%-6,260,25313F
Two Sigma Investments, LP8,340,4002.15%$725.9 million0.56%+27,42913F
Wellington Management Group LLP7,382,1411.90%$642.5 million0.11%-2,392,65113F
Kayne Anderson Rudnick Investment Management LLC6,365,5311.64%$554.1 million1.72%-3,650,68413F
Norges Bank6,334,1731.63%$551.3 million0.06%13F
Orbis Allan Gray Ltd6,069,2701.56%$528.3 million1.81%-48,77513F
W1M Asset Management Ltd5,975,6361.54%$520.1 million4.77%+59,83313F
Bank of America Corp.5,954,0551.53%$518.2 million0.03%-276,08113F
American Century Companies Inc.5,583,0281.44%$485.9 million0.21%-161,38013F
Ninety One UK Ltd5,258,6891.35%$457.7 million1.02%new13F
JPMorgan Chase & Co.5,187,5491.34%$457.5 million0.03%-1,536,10313F
Morgan Stanley5,146,2421.32%$447.9 million0.02%+380,67013F
Viking Global Investors LP4,830,7481.24%$420.5 million1.20%+3,436,41913F
Bamco Inc.4,807,2141.24%$418.4 million0.63%+759,83813F
Neuberger Berman Group LLC4,601,9411.18%$401.3 million0.27%+868,89313F
1832 Asset Management L.P.4,340,8991.12%$377.8 million0.46%-113,25513F
Goldman Sachs Group Inc.4,156,8471.07%$361.8 million0.04%+935,30213F
Egerton Capital (UK) LLP4,129,4161.06%$359.4 million3.47%-2,145,76313F
Bessemer Group Inc.3,874,4531.00%$337.2 million0.46%-48,28313F
Charles Schwab Investment Management Inc.3,838,5470.99%$334.1 million0.04%+245,99613F
TD Asset Management Inc3,651,9270.94%$317.9 million0.28%+1,183,02713F
Northern Trust Corp.3,605,7080.93%$313.8 million0.04%+43,88213F
UBS Group AG3,406,1220.88%$296.5 million0.05%+1,142,77013F
Jacobs Levy Equity Management, Inc.3,399,4330.87%$295.9 million1.06%-531,58313F
Jane Street Group, LLC3,350,1160.86%$291.6 million0.19%+1,582,33813F
Capital World Investors3,255,4120.84%$283.4 million0.03%+224,49213F
Barclays PLC2,618,6740.67%$227.9 million0.07%+352,27713F
Vanguard Fiduciary Trust Co.2,505,1310.64%$218.0 million0.05%+15,57813F
Bank of New York Mellon Corp2,420,0310.62%$210.6 million0.04%+137,72013F
Legal & General Group Plc2,286,5930.59%$199.0 million0.04%-219,92813F
Wells Fargo & Company2,273,5430.59%$197.9 million0.03%-615,63813F
Progeny 3, Inc.2,195,6400.57%$191.1 million9.86%no change13F
First Trust Advisors LP2,106,2720.54%$183.3 million0.11%-192,89613F
Deutsche Bank AG2,074,6660.53%$180.6 million0.05%+1,014,48313F
Amundi2,029,6840.52%$176.7 million0.04%-403,55213F
KBC Group NV2,028,9850.52%$176.6 million0.38%-86,45313F
UBS AM, a distinct business unit of UBS Asset Management Americas LLC1,938,4090.50%$168.7 million0.03%-187,24313F
Raymond James Financial Inc.1,695,1980.44%$147.6 million0.04%-80,38113F
HRT Financial LP1,633,3650.42%$142.2 million0.26%+869,46213F
D. E. Shaw & Co., Inc.1,602,5340.41%$139.5 million0.09%+1,111,02613F
FIL Ltd1,581,2200.41%$137.6 million0.10%+68,83013F
Congress Asset Management Co.1,527,7390.39%$133.0 million0.82%+556,21013F
Price T Rowe Associates Inc.1,504,0300.39%$130.9 million0.01%+414,28613F
The 50 largest of the 1,123 funds that reported a position in IBKR in their 13F for the quarter ended 30 June 2026, by the value each reported.
Read moreShare of all is the fund's part of all the shares the funds reported. Change is shares against the fund's 13F for the quarter before. A 13F lists a manager's long positions in US-listed shares at the quarter's end. What is a 13F?

Options the funds reported on IBKR

FundOptionShares under the optionsValue of those sharesQuarter endedFiling
Citadel AdvisorsCalls833,700$72.6 million30 June 202613F
Citadel AdvisorsPuts577,900$50.3 million30 June 202613F
Millennium ManagementPuts181,600$15.8 million30 June 202613F
Point72 Asset ManagementCalls146,400$12.7 million30 June 202613F
Millennium ManagementCalls45,800$4.0 million30 June 202613F
Two Sigma InvestmentsPuts31,600$2.8 million30 June 202613F
Two Sigma InvestmentsCalls26,700$2.3 million30 June 202613F
Point72 Asset ManagementPuts26,100$2.3 million30 June 202613F
A 13F lists calls and puts by the shares they cover and what those shares were worth at the quarter's end, not what the options cost.
Read moreThey are not counted in the holdings above. A put gains when the stock falls, a call when it rises, and a fund may hold either to hedge.

Schedule 13D and 13G filed on the name, last twelve months

FiledScheduleWhoHoldingOf the classEvent dateRule or purposeFiling
30 April 202613GVanguard Capital Management and 1 other32.5 million7.3%31 March 2026passive, institutional (13d-1(b))EDGAR
27 March 202613G/AThe Vanguard Group and 1 other00.0%13 March 2026passive, institutional (13d-1(b))EDGAR
A Schedule 13D is filed by anyone who crosses 5% of a class with intent to influence; a 13G by a passive holder.
Read moreAmendments (/A) report a change, including an exit to zero. Holding and percentage are as the filer stated them on the cover page; the purpose is the filer's own words, cut short. 13D and 13G

Fails to deliver

Settlement dateShares failedPriceFile
31 August 20261,482$95.84SEC
28 August 20262,892$96.55SEC
27 August 20262,587$97.02SEC
25 August 20261$93.05SEC
24 August 20261,200$93.87SEC
19 August 20261,045$90.56SEC
17 August 20264,791$92.06SEC
14 August 2026276$91.42SEC
13 August 2026555$91.66SEC
10 August 2026619$87.83SEC
6 August 202636$88.74SEC
4 August 202613,390$87.75SEC
31 July 20262,116$90.48SEC
29 July 20265,555$90.91SEC
24 July 2026376$91.76SEC
22 July 2026784$94.42SEC
17 July 20261,223$92.21SEC
16 July 20261,831$97.41SEC
Shares that failed to deliver at settlement, per day, from the SEC's half-month files, which arrive about two weeks after the period.
Read moreLargest in the window: 13,390 on 4 August 2026. A fail is an operational fact about settlement, not a position.