Mar 31, 2026 filings. Quarterly 13F reports arrive up to 45 days after quarter end; this register is filed through May 29, 2026.
953 institutional managers reported holding CBOE for the quarter ended Mar 31, 2026. Together they hold about 87% of shares outstanding; the top 10 hold 49%. 131 opened new positions; 92 closed out. Complete ranked register from SEC 13F filings.
| manager | shares | % out | value (Mar 31, 2026 close) | change | held since |
|---|---|---|---|---|---|
| Vanguard Group | 13.11M | 12.48% | $3.68B | added +1.1% | ≤2013 |
| BlackRock | 10.51M | 10.01% | $2.95B | added +6.2% | ≤2013 |
| AllianceBernstein | 5.06M | 4.82% | $1.42B | trimmed -22.9% | ≤2013 |
| State Street | 4.98M | 4.74% | $1.40B | unchanged | ≤2013 |
| FMR (Fidelity) | 4.71M | 4.49% | $1.32B | added +8.3% | 2016 Q1 |
| Morgan Stanley | 3.35M | 3.19% | $941.6M | added +24.6% | ≤2013 |
| Geode Capital | 3.09M | 2.94% | $867.1M | added +3.4% | ≤2013 |
| Invesco | 2.37M | 2.26% | $666.0M | added +22.8% | ≤2013 |
| T. Rowe Price Investment Management, INC. | 2.17M | 2.07% | $609.6M | added +77.5% | 2022 Q3 |
| UBS | 1.58M | 1.51% | $444.3M | trimmed -12.5% | ≤2013 |
| Northern Trust | 1.33M | 1.27% | $373.8M | trimmed -5.1% | ≤2013 |
| Janus Henderson | 1.33M | 1.27% | $373.2M | trimmed -1% | ≤2013 |
| First Trust Advisors LP | 1.22M | 1.16% | $341.4M | trimmed -14% | 2015 Q4 |
| Renaissance Technologies | 1.10M | 1.05% | $309.1M | trimmed -3.4% | ≤2013 |
| Deutsche Bank AG\ | 1.07M | 1.02% | $300.1M | added +12.7% | 2013 Q3 |
| Goldman Sachs | 1.01M | 0.97% | $284.7M | added +38.5% | ≤2013 |
| Amundi | 958.8k | 0.91% | $269.3M | trimmed -2.3% | 2017 Q4 |
| Nordea Investment Management AB | 904.4k | 0.86% | $254.0M | trimmed -4.6% | 2015 Q4 |
| Bank OF America CORP /DE/ | 750.8k | 0.71% | $210.9M | added +10.1% | ≤2013 |
| Legal & General Group PLC | 738.0k | 0.70% | $207.3M | trimmed -6.6% | 2013 Q4 |
| Mackenzie Financial CORP | 708.3k | 0.68% | $198.9M | added +34.8% | 2017 Q4 |
| Viking Global | 688.4k | 0.66% | $193.3M | opened | 2026 Q1 |
| Dimensional Fund Advisors | 672.7k | 0.64% | $188.9M | added +0.8% | ≤2013 |
| Charles Schwab Investment Management | 625.4k | 0.60% | $175.6M | added +3.8% | ≤2013 |
| AQR Capital | 622.3k | 0.59% | $174.8M | added +43.3% | ≤2013 |
| Allianz Asset Management GmbH | 587.9k | 0.56% | $165.1M | added +1255.7% | 2018 Q4 |
| Robeco Institutional Asset Management B.v. | 561.7k | 0.54% | $157.8M | added +23.8% | 2016 Q4 |
| Clark Capital Management Group, INC. | 534.5k | 0.51% | $150.1M | added +3% | 2022 Q1 |
| BNY Mellon | 501.1k | 0.48% | $140.7M | trimmed -1.2% | ≤2013 |
| Lord, Abbett & CO. LLC | 493.7k | 0.47% | $138.6M | added +4.9% | 2021 Q3 |
| BNP Paribas Financial Markets | 482.0k | 0.46% | $135.4M | trimmed -16.8% | ≤2013 |
| Bahl & Gaynor INC | 443.4k | 0.42% | $124.5M | added +29.3% | 2023 Q4 |
| DekaBank Deutsche Girozentrale | 416.1k | 0.40% | $116.8M | unchanged | 2017 Q2 |
| Horizon Kinetics Asset Management LLC | 410.1k | 0.39% | $115.2M | unchanged | ≤2013 |
| Nuveen | 380.8k | 0.36% | $106.9M | added +14.6% | ≤2013 |
| Mitsubishi UFJ Asset Management CO., LTD. | 366.6k | 0.35% | $103.0M | added +4.1% | 2017 Q1 |
| 1832 Asset Management L.p. | 351.5k | 0.34% | $98.7M | added +173.1% | 2025 Q2 |
| TD Asset Management INC | 350.8k | 0.33% | $98.5M | trimmed -4% | ≤2013 |
| Credit Agricole S A | 333.5k | 0.32% | $93.7M | trimmed -20.1% | ≤2013 |
| Nomura Asset Management International INC. | 331.0k | 0.32% | $92.9M | added +8967.5% | 2022 Q4 |
| T. Rowe Price | 326.6k | 0.31% | $91.7M | trimmed -10% | ≤2013 |
| Barclays PLC | 321.4k | 0.31% | $90.3M | trimmed -20% | ≤2013 |
| Caisse de depot et placement du Quebec | 311.3k | 0.30% | $87.4M | trimmed -16.2% | 2019 Q4 |
| Nomura Asset Management CO LTD | 301.6k | 0.29% | $84.7M | added +620.8% | 2015 Q3 |
| Parnassus Investments | 301.1k | 0.29% | $84.6M | trimmed -4.7% | 2020 Q4 |
| Hsbc Holdings PLC | 297.3k | 0.28% | $83.5M | added +3% | ≤2013 |
| Anchor Capital Advisors LLC | 290.8k | 0.28% | $81.7M | trimmed -2.2% | 2021 Q1 |
| Bank OF Montreal /CAN/ | 273.4k | 0.26% | $76.8M | trimmed -2.8% | ≤2013 |
| Sumitomo Mitsui Trust Group, INC. | 260.2k | 0.25% | $73.1M | trimmed -4.3% | 2016 Q4 |
| Raymond James Financial INC | 258.3k | 0.25% | $72.6M | added +14.4% | 2015 Q3 |
Largest 50 of 953 shown; the full ranked, searchable register is at boothcheck.com/holders/CBOE. Related filers are grouped using the filings' own included-manager declarations. Historically, several managers opening new positions in the same quarter said almost nothing about the quarter that followed (59,118 cases since 2013). A filed record, not a forecast. Nothing here is investment advice.