IBKR Institutional Ownership
Who owns Interactive Brokers Group, Inc. and what the big funds did with it last quarter, from every SEC 13F filing. 1,117 funds reported holding IBKR at Jun 30, 2026.
- ▲578 buying vs 450 selling
- ▲Shares held by funds +2.4%
- ▲Funds holding +112
- ▲Superinvestors: 5 added, 3 cut
- ▼Put/call 0.71 to 1.08
What the filings show, not a forecast. Positions can be up to 45 days old and leave out short sales.
Funds holding and ownership
8 quartersQuarter over quarter
all 13F filers| Q2 2026 | This quarter | Q1 2026 | Change |
|---|---|---|---|
| Funds holding | 1,117 | 1,005 | +11.1% |
| In funds' top 10 | 37 | 35 | +5.7% |
| 13F shares | 389M | 380M | +2.4% |
| Held by funds | – | – | – |
| New positions | 183 | 122 | +50.0% |
| Increased | 395 | 400 | −1.3% |
| Reduced | 381 | 326 | +16.9% |
| Sold out | 69 | 106 | −34.9% |
| Calls (shares) | 742K | 1.2M | −40.3% |
| Puts (shares) | 817K | 885K | −7.7% |
| Put/call ratio | 1.08 | 0.71 | +51.3% |
Buyers vs sellers
adding or new vs cutting or sold outSuperinvestors in IBKR
All superinvestors →
Who owns IBKR
share of fund held shares- Index and passive funds32.8%
- Active managers and hedge funds48.9%
- Banks and brokers14.1%
- Pensions, insurers and other4.2%
The top 10 holders own 37.9% of all IBKR shares that funds reported. Groups are our own grouping of filers by name.
Put/call ratio
funds' options, market makers left outAbove 1 means funds hold more puts than calls, a sign of hedging or bets on a fall. Options are valued at the underlying shares.
Filed so far for Q3 2026
338 funds changed their position- KBC Group NVTrimmed−1.4M sh
- Assenagon Asset Management S.A.Trimmed−1M sh
- Egerton Capital (UK) LLPTrimmed−969K sh
- Vontobel Holding Ltd.Added+375K sh
- Trinity Street Asset Management LLPNew+350K sh
🔒 Free account: see all 20.
Top holders
Q2 2026| # | Fund | Of company | Shares | Value | Change |
|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | – | 33.1M | $2.9B | +1.8M |
| 2 | Vanguard Capital Management LLC | – | 28.3M | $2.5B | +170K |
| 3 | State Street Corp | – | 19.4M | $1.7B | +346K |
| 4 | Fmr LLC | – | 11.8M | $1B | −673K |
| 5 | Geode Capital Management, LLC | – | 10.6M | $925M | +198K |
| 6 | Greenwich Wealth Management LLC | – | 9.9M | $864M | −2,288 |
| 7 | Invesco Ltd. | – | 9.7M | $845M | +62K |
| 8 | Vanguard Portfolio Management LLC | – | 8.7M | $759M | −6.3M |
| 9 | Two Sigma Investments, LP | – | 8.3M | $726M | +27K |
| 10 | Wellington Management Group LLP | – | 7.4M | $643M | −2.4M |
- Norges Bank+6.3M sh+$551M
- Ninety One UK Ltd+5.3M sh+$458M
- Viking Global Investors LP+3.4M sh+$299M
- BlackRock, Inc.+1.8M sh+$153M
- Jane Street Group, LLC+1.6M sh+$138M
- Agf Management Ltd+1.5M sh+$126M
- TD Asset Management Inc+1.2M sh+$103M
- UBS Group AG+1.1M sh+$99.5M
- Cantillon Capital Management LLC−10.7M sh−$934M
- Vanguard Portfolio Management LLC−6.3M sh−$545M
- Kayne Anderson Rudnick Investment Management LLC−3.7M sh−$318M
- Wellington Management Group LLP−2.4M sh−$208M
- Egerton Capital (UK) LLP−2.1M sh−$187M
- Jpmorgan Chase & Co−1.5M sh−$135M
- Ensign Peak Advisors, Inc−961K sh−$83.7M
- Fmr LLC−673K sh−$58.6M
IBKR institutional ownership FAQ
Who owns the most IBKR stock?
In Q2 2026 13F filings the largest holder of IBKR was BlackRock, Inc., followed by Vanguard Capital Management LLC and State Street Corp. Index fund managers are usually the biggest holders of large companies.
What percentage of IBKR is owned by institutions?
1,117 funds reported holding 389M IBKR shares at Jun 30, 2026.
Are hedge funds buying IBKR?
In Q2 2026, 578 funds bought IBKR (183 of them new positions) and 450 sold (69 sold out completely). Among well known investors, 5 added and 3 cut. Our fund sentiment for IBKR is bullish.
What is IBKR's institutional put/call ratio?
Funds reported $69.7M of IBKR puts against $64.6M of calls, a put/call ratio of 1.08 (0.71 the quarter before). Market makers and bank trading desks are left out, since their options are mostly hedges.
How current is this IBKR ownership data?
13F filings show holdings at the end of each quarter and are due within 45 days, so positions can be up to six weeks old when they appear. We add each new filing within minutes, and the "filed so far" list shows funds that have already reported the next quarter.
For informational and educational purposes only. Not investment advice, and not a recommendation to buy or sell any security. Fund sentiment summarises what 13F filings show and is not a forecast. Holdings come from SEC Form 13F filings as reported and show positions at the end of the quarter, up to 45 days before the filing. A 13F leaves out short positions, cash, bonds and most foreign holdings. See all hedge fund holdings.