CALX Institutional Ownership
Who owns Calix, Inc and what the big funds did with it last quarter, from every SEC 13F filing. 289 funds reported holding CALX at Jun 30, 2026, together owning 95.4% of the company.
- ▼143 buying vs 170 selling
- ▲Held by funds +0.6 pts
- ▼Funds holding -23
- ●Superinvestors: 2 added, 2 cut
- ●Put/call not meaningful
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 | 289 | 312 | −7.4% |
| In funds' top 10 | 0 | 0 | – |
| 13F shares | 60M | 59.7M | +0.6% |
| Held by funds | 95.4% | 94.8% | +0.6 pts |
| New positions | 37 | 38 | −2.6% |
| Increased | 106 | 124 | −14.5% |
| Reduced | 111 | 98 | +13.3% |
| Sold out | 59 | 63 | −6.3% |
| Calls (shares) | 0 | 0 | – |
| Puts (shares) | 0 | 0 | – |
| Put/call ratio | – | – | – |
Buyers vs sellers
adding or new vs cutting or sold outSuperinvestors in CALX
All superinvestors →
Who owns CALX
share of fund held shares- Index and passive funds46.8%
- Active managers and hedge funds42.6%
- Banks and brokers9.0%
- Pensions, insurers and other1.7%
The top 10 holders own 54.4% of all CALX 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
60 funds changed their position- Fort Washington Investment Advisors Inc /oh/New+934K sh
- Principal Financial Group IncTrimmed−115K sh
- Y-Intercept (Hong Kong) LtdAdded+46K sh
- VIRGINIA RETIREMENT SYSTEMS ET AlAdded+32K sh
- Creative PlanningAdded+29K sh
🔒 Free account: see all 20.
Top holders
Q2 2026| # | Fund | Of company | Shares | Value | Change |
|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 18.70% | 11.8M | $439M | +622K |
| 2 | Vanguard Portfolio Management LLC | 8.87% | 5.6M | $209M | +54K |
| 3 | Alliancebernstein L.P. | 5.16% | 3.2M | $159M | −2,716 |
| 4 | State Street Corp | 4.63% | 2.9M | $109M | +313K |
| 5 | Vanguard Capital Management LLC | 4.11% | 2.6M | $96.6M | −99K |
| 6 | Geode Capital Management, LLC | 2.35% | 1.5M | $55.3M | +46K |
| 7 | Westfield Capital Management Co LP | 2.10% | 1.3M | $49.4M | −222K |
| 8 | Dimensional Fund Advisors LP | 2.08% | 1.3M | $48.9M | +91K |
| 9 | Acadian Asset Management LLC | 1.97% | 1.2M | $46.3M | +441K |
| 10 | Citadel Advisors LLC | 1.92% | 1.2M | $45.1M | +781K |
- Citadel Advisors LLC+781K sh+$29.1M
- BlackRock, Inc.+622K sh+$23.2M
- Two Sigma Investments, LP+542K sh+$20.2M
- Trigran Investments, Inc.+442K sh+$16.5M
- Acadian Asset Management LLC+441K sh+$16.5M
- Hrt Financial LP+434K sh+$16.2M
- Alyeska Investment Group, L.P.+400K sh+$14.9M
- D. E. Shaw & Co., Inc.+388K sh+$14.5M
- Congress Asset Management Co−1.6M sh−$61M
- Millennium Management LLC−1.2M sh−$45M
- Artisan Partners Limited Partnership−530K sh−$26M
- Point72 Asset Management, L.P.−514K sh−$25.2M
- Squarepoint Ops LLC−363K sh−$13.5M
- Divisadero Street Capital Management, LP−300K sh−$11.2M
- MetLife Investment Management, LLC−278K sh−$10.4M
- Schroder Investment Management Group−267K sh−$9.6M
CALX institutional ownership FAQ
Who owns the most CALX stock?
In Q2 2026 13F filings the largest holder of CALX was BlackRock, Inc., followed by Vanguard Portfolio Management LLC and Alliancebernstein L.P.. Index fund managers are usually the biggest holders of large companies.
What percentage of CALX is owned by institutions?
Funds that file 13F reports held 95.4% of CALX's shares at Jun 30, 2026, compared with 94.8% a quarter earlier. That counts every manager with more than $100 million in US stocks.
Are hedge funds buying CALX?
In Q2 2026, 143 funds bought CALX (37 of them new positions) and 170 sold (59 sold out completely). Among well known investors, 2 added and 2 cut. Our fund sentiment for CALX is neutral.
What is CALX's institutional put/call ratio?
Too few option positions were reported for a meaningful ratio.
How current is this CALX 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.