Mar 31, 2026 filings. Quarterly 13F reports arrive up to 45 days after quarter end; this register is filed through May 29, 2026.
1,163 institutional managers reported holding FIX for the quarter ended Mar 31, 2026. Together they hold about 90% of shares outstanding; the top 10 hold 45%. 234 opened new positions; 93 closed out. Complete ranked register from SEC 13F filings.
| manager | shares | % out | value (Mar 31, 2026 close) | change | held since |
|---|---|---|---|---|---|
| Vanguard Group | 4.53M | 12.85% | $6.25B | added +5% | ≤2013 |
| BlackRock | 3.51M | 9.96% | $4.84B | added +1.9% | ≤2013 |
| State Street | 1.47M | 4.17% | $2.03B | added +3% | ≤2013 |
| FMR (Fidelity) | 1.45M | 4.11% | $2.00B | trimmed -13.2% | 2016 Q3 |
| Geode Capital | 1.24M | 3.51% | $1.71B | added +4.4% | ≤2013 |
| AQR Capital | 1.12M | 3.17% | $1.54B | added +9.4% | 2015 Q2 |
| Capital Group (American Funds) | 865.8k | 2.46% | $1.19B | trimmed -47.2% | 2021 Q1 |
| Westfield Capital Management CO LP | 620.9k | 1.76% | $856.1M | trimmed -7.2% | 2023 Q4 |
| Invesco | 606.6k | 1.72% | $836.3M | trimmed -7.1% | ≤2013 |
| Morgan Stanley | 460.1k | 1.30% | $634.4M | added +6.6% | ≤2013 |
| First Trust Advisors LP | 415.9k | 1.18% | $573.4M | trimmed -13.7% | 2013 Q4 |
| Capital International Investors | 391.8k | 1.11% | $540.3M | added +244.8% | 2023 Q1 |
| UBS | 336.6k | 0.95% | $464.0M | added +16.9% | ≤2013 |
| Northern Trust | 329.1k | 0.93% | $453.8M | added +3.2% | ≤2013 |
| Charles Schwab Investment Management | 287.7k | 0.82% | $396.7M | unchanged | ≤2013 |
| Dimensional Fund Advisors | 279.9k | 0.79% | $386.0M | added +5.4% | ≤2013 |
| Federated Hermes, INC. | 267.0k | 0.76% | $368.2M | trimmed -15.9% | 2015 Q2 |
| Arrowstreet Capital | 253.0k | 0.72% | $348.8M | added +12.8% | 2024 Q1 |
| Hood River Capital Management LLC | 249.4k | 0.71% | $343.8M | added +1.4% | 2022 Q1 |
| Goldman Sachs | 244.0k | 0.69% | $336.5M | added +23.3% | ≤2013 |
| Fuller & Thaler Asset Management, INC. | 242.2k | 0.69% | $333.9M | trimmed -16.2% | 2016 Q3 |
| Deutsche Bank AG\ | 240.8k | 0.68% | $332.0M | trimmed -23% | 2013 Q3 |
| Lord, Abbett & CO. LLC | 237.6k | 0.67% | $327.7M | trimmed -12.5% | 2019 Q3 |
| Baillie Gifford | 225.1k | 0.64% | $310.4M | trimmed -18.1% | 2023 Q3 |
| Point72 | 219.2k | 0.62% | $302.3M | added +49.3% | 2025 Q3 |
| BNY Mellon | 218.2k | 0.62% | $300.8M | trimmed -4.2% | ≤2013 |
| Value Aligned Research Advisors, LLC | 213.6k | 0.61% | $294.6M | added +45.3% | 2025 Q3 |
| Castle Hook Partners LP (focused) | 208.9k | 0.59% | $288.0M | trimmed -22% | 2025 Q3 |
| Artisan Partners | 208.2k | 0.59% | $287.0M | trimmed -3.7% | 2025 Q2 |
| Franklin Resources | 203.4k | 0.58% | $280.4M | added +13% | 2023 Q2 |
| Nuveen | 188.5k | 0.54% | $259.9M | added +6.5% | 2019 Q2 |
| T. Rowe Price | 161.2k | 0.46% | $222.2M | trimmed -9.3% | ≤2013 |
| Clearbridge Investments, LLC | 160.0k | 0.45% | $220.6M | trimmed -20.2% | 2024 Q4 |
| Legal & General Group PLC | 153.8k | 0.44% | $212.0M | added +26.2% | 2014 Q3 |
| Capital Research Global Investors | 153.6k | 0.44% | $211.8M | added +31.8% | 2021 Q2 |
| SG Americas Securities, LLC | 153.5k | 0.43% | $211.6M | added +25.3% | 2016 Q1 |
| AllianceBernstein | 149.0k | 0.42% | $205.4M | trimmed -18.5% | ≤2013 |
| Ameriprise Financial INC | 147.3k | 0.42% | $203.1M | added +27% | ≤2013 |
| Royal Bank OF Canada | 146.2k | 0.41% | $201.6M | added +24.6% | ≤2013 |
| Royal London Asset Management LTD | 138.3k | 0.39% | $190.6M | trimmed -29% | 2023 Q1 |
| Amundi | 136.8k | 0.39% | $188.7M | added +21.5% | 2024 Q2 |
| Raymond James Financial INC | 135.0k | 0.38% | $186.1M | added +56.3% | 2018 Q2 |
| Evercore Wealth Management, LLC | 134.3k | 0.38% | $185.2M | trimmed -13.5% | 2025 Q1 |
| Bank OF America CORP /DE/ | 129.1k | 0.37% | $177.9M | trimmed -16.5% | ≤2013 |
| Allspring Global Investments Holdings, LLC | 125.0k | 0.35% | $172.3M | added +91.2% | 2025 Q4 |
| Voya Investment Management LLC | 121.6k | 0.34% | $167.7M | trimmed -31.7% | ≤2013 |
| Allianz Asset Management GmbH | 119.4k | 0.34% | $164.7M | added +31.5% | 2023 Q1 |
| WCM Investment Management | 116.7k | 0.33% | $160.9M | added +24.5% | 2024 Q2 |
| Janus Henderson | 115.4k | 0.33% | $159.1M | added +16.6% | 2018 Q3 |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 114.2k | 0.32% | $157.5M | trimmed -20.4% | 2015 Q1 |
Largest 50 of 1,163 shown; the full ranked, searchable register is at boothcheck.com/holders/FIX. 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.