CALIX INC CALX
COM · Common Stock · CUSIP 13100M509 · ISIN US13100M5094
- SectorCommunication
- IndustryCommunications Services, NEC
- HeadquartersSan Jose, CA
- FilingsSEC EDGAR
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($1.6m this quarter). Holder counts are more reliable. Shares outstanding: 65.9m as of 2023-10-16, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $45.95. Options: 12 managers hold calls ($11.5m notional), 12 hold puts ($10.3m).
Trends to Q3 2023
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 231 |
| Q4 2022 | 275 |
| Q1 2023 | 272 |
| Q2 2023 | 268 |
| Q3 2023 | 278 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q4 2022 | 157 | 101 |
| Q1 2023 | 156 | 131 |
| Q2 2023 | 148 | 127 |
| Q3 2023 | 155 | 129 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q4 2022 | $15.3m | $5.8m | 0.38 |
| Q1 2023 | $6.3m | $3.1m | 0.49 |
| Q2 2023 | $15.6m | $1.8m | 0.11 |
| Q3 2023 | $11.5m | $10.3m | 0.89 |
Biggest buyers
| Artisan Partners Limited Partnership | Added | +554.0k |
| ALLIANCEBERNSTEIN L.P. | Added | +495.2k |
| WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC | New | +373.7k |
| BlackRock Inc. | Added | +348.0k |
| INTRINSIC EDGE CAPITAL MANAGEMENT LLC | Added | +316.3k |
| WELLINGTON MANAGEMENT GROUP LLP | Added | +313.4k |
| PARADIGM CAPITAL MANAGEMENT INC/NY | Added | +307.4k |
| VANGUARD GROUP INC | Added | +298.3k |
| CONGRESS ASSET MANAGEMENT CO | Added | +254.4k |
| Ophir Asset Management Pty Ltd | Added | +197.7k |
Biggest sellers
| LORD, ABBETT & CO. LLC | Reduced | -808.5k |
| Driehaus Capital Management LLC | Sold out | -784.7k |
| Schonfeld Strategic Advisors LLC | Reduced | -681.4k |
| Assenagon Asset Management S.A. | Reduced | -622.5k |
| RENAISSANCE TECHNOLOGIES LLC | Reduced | -473.0k |
| ROYCE & ASSOCIATES LP | Reduced | -242.6k |
| Allspring Global Investments Holdings, LLC | Reduced | -232.6k |
| Liontrust Investment Partners LLP | Reduced | -223.0k |
| Alyeska Investment Group, L.P. | Sold out | -213.8k |
| Atika Capital Management LLC | Reduced | -180.9k |
Biggest calls
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $2.5m54.4k shares |
| Walleye Capital LLC | Added | $2.5m54.4k shares |
| INTRINSIC EDGE CAPITAL MANAGEMENT LLC | New | $2.3m50.0k shares |
| JANE STREET GROUP, LLC | Added | $1.1m25.0k shares |
| TWO SIGMA SECURITIES, LLC | Added | $816.0k17.8k shares |
| Walleye Trading LLC | Added | $715.1k15.6k shares |
| CITADEL ADVISORS LLC | Added | $715.1k15.6k shares |
| TUDOR INVESTMENT CORP ET AL | New | $641.8k14.0k shares |
| SIMPLEX TRADING, LLC | Reduced | $215.0k4.7k shares |
| GROUP ONE TRADING LLC | Reduced | $13.8k300 shares |
Biggest puts
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $2.6m56.8k shares |
| SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT, LLC | New | $1.8m40.0k shares |
| Walleye Trading LLC | Added | $1.7m37.9k shares |
| Walleye Capital LLC | Added | $1.7m36.0k shares |
| TWO SIGMA SECURITIES, LLC | New | $848.0k18.5k shares |
| JANE STREET GROUP, LLC | Added | $715.1k15.6k shares |
| SIMPLEX TRADING, LLC | Added | $343.0k7.5k shares |
| CITADEL ADVISORS LLC | Added | $293.4k6.4k shares |
| TUDOR INVESTMENT CORP ET AL | Added | $265.9k5.8k shares |
| GROUP ONE TRADING LLC | Added | $9.2k200 shares |
Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
| Holder | Stake |
|---|---|
| BlackRock, Inc. 13G · institution +1.3 pts · filed 2026-07-30 | 16.2% |
| VANGUARD PORTFOLIO MANAGEMENT LLC 13G · institution new · filed 2026-04-29 | 8.6% |
| ALLIANCEBERNSTEIN L.P. 13G · institution +1.6 pts · filed 2026-05-18 | 5.0% |
Fell to 5% or below in the last year: VANGUARD GROUP INC (0.0%, 2026-03-26; now reported by VANGUARD PORTFOLIO MANAGEMENT LLC)
Insider purchases and sales in Q3 2023
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
Officers and directors buying vs selling
Number of people, by quarter (10% owners not included)
Numbers
| Quarter | Buying | Bought | Selling | Sold | Sold under a plan |
|---|---|---|---|---|---|
| Q4 2021 | 1 | $901.7k | 5 | $15.1m | — |
| Q1 2022 | 1 | $509.4k | 2 | $1.6m | — |
| Q2 2022 | 0 | — | 2 | $2.5m | — |
| Q3 2022 | 0 | — | 4 | $4.4m | — |
| Q4 2022 | 0 | — | 6 | $11.1m | — |
| Q1 2023 | 0 | — | 1 | $272.4k | — |
| Q2 2023 | 0 | — | 1 | $220.5k | — |
| Q3 2023 | 1 | $11.9k | 2 | $4.8m | — |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2023-08-14 | Weening Michael President & CEO, director | Bought | $11.9k341 shares |
| 2023-08-04 | LISTWIN DONALD J Director | Sold | $4.3m100.0k shares |
| 2023-07-25 | Collins John Matthew Chief Commercial Ops Officer | Sold | $471.2k10.0k shares |
Their holding: how much the trade added to or took from the insider's holding (direct, or the trust or fund named). The same trade is sometimes reported by more than one insider, such as a fund and the director who represents it; totals count it once. A value is left blank where the reported price is far from the market price (usually a typo).
Holders, Q3 2023
| Manager | Shares | Change |
|---|---|---|
| BlackRock Inc. 0.01% of their portfolio | 8.4m $386.5m | Added +348.0k |
| VANGUARD GROUP INC 0.01% of their portfolio | 6.4m $291.8m | Added +298.3k |
| ALLIANCEBERNSTEIN L.P. 0.05% of their portfolio | 2.4m $108.6m | Added +495.2k |
| STATE STREET CORP 0.01% of their portfolio | 2.0m $90.4m | Added +44.2k |
| GILDER GAGNON HOWE & CO LLC 1.21% of their portfolio | 1.7m $79.6m | Reduced -98.1k |
| DIMENSIONAL FUND ADVISORS LP 0.02% of their portfolio | 1.6m $75.0m | Reduced -8.5k |
| WELLINGTON MANAGEMENT GROUP LLP 0.01% of their portfolio | 1.6m $72.8m | Added +313.4k |
| AMERIPRISE FINANCIAL INC 0.02% of their portfolio | 1.4m $65.5m | Added +189.7k |
| Bank of New York Mellon Corp 0.01% of their portfolio | 1.3m $60.6m | Reduced -26.6k |
| Thrivent Financial for Lutherans 0.14% of their portfolio | 1.3m $57.5m | Added +21.5k |
| PARADIGM CAPITAL MANAGEMENT INC/NY 3.21% of their portfolio | 1.2m $56.0m | Added +307.4k |
| GEODE CAPITAL MANAGEMENT, LLC 0.01% of their portfolio | 1.2m $55.4m | Added +71.3k |
| Artisan Partners Limited Partnership 0.08% of their portfolio | 1.1m $49.2m | Added +554.0k |
| NORTHERN TRUST CORP 0.01% of their portfolio | 842.8k $38.6m | Reduced -8.2k |
| CONGRESS ASSET MANAGEMENT CO 0.32% of their portfolio | 799.1k $36.6m | Added +254.4k |
| KORNITZER CAPITAL MANAGEMENT INC /KS 0.75% of their portfolio | 790.5k $36.2m | Added +133.6k |
| LOOMIS SAYLES & CO L P 0.06% of their portfolio | 790.1k $36.2m | Reduced -24.7k |
| WESTFIELD CAPITAL MANAGEMENT CO LP 0.21% of their portfolio | 679.2k $31.1m | Added +147.8k |
| Polar Asset Management Partners Inc. 0.67% of their portfolio | 609.9k $28.0m | Added +131.7k |
| MACQUARIE GROUP LTD 0.04% of their portfolio | 609.7k $27.9m | Added +6.3k |
| Ophir Asset Management Pty Ltd 6.35% of their portfolio | 587.9k $26.9m | Added +197.7k |
| NORGES BANK 0.01% of their portfolio | 553.2k $25.4m | Added +8.1k |
| MARSHALL WACE, LLP 0.05% of their portfolio | 531.2k $24.4m | Added +6.7k |
| INTRINSIC EDGE CAPITAL MANAGEMENT LLC 2.92% of their portfolio | 516.3k $23.7m | Added +316.3k |
| AXA S.A. 0.08% of their portfolio | 512.1k $23.5m | Added +22.3k |
| Weiss Multi-Strategy Advisers LLC 0.56% of their portfolio | 500.0k $22.9m | Reduced -83.5k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.01% of their portfolio | 461.0k $21.1m | Added +20.0k |
| VOYA INVESTMENT MANAGEMENT LLC 0.02% of their portfolio | 427.5k $19.6m | Added +157.1k |
| Nuveen Asset Management, LLC 0.01% of their portfolio | 407.1k $18.7m | Added +114.7k |
| WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC 0.06% of their portfolio | 373.7k $17.1m | New |
| Mirae Asset Global Investments Co., Ltd. 0.04% of their portfolio | 371.3k $17.0m | Added +31.9k |
| Mesirow Institutional Investment Management, Inc. 1.62% of their portfolio | 348.6k $16.0m | Added +91.3k |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 332.3k $15.2m | Reduced -82.8k |
| Assenagon Asset Management S.A. 0.05% of their portfolio | 328.8k $15.1m | Reduced -622.5k |
| RK Capital Management, LLC 3.42% of their portfolio | 315.4k $14.5m | Added +27.9k |
| Analog Century Management LP 3.83% of their portfolio | 311.9k $14.3m | Reduced -20.6k |
| Epoch Investment Partners, Inc. 0.09% of their portfolio | 301.0k $13.8m | Added +31.2k |
| Allspring Global Investments Holdings, LLC 0.02% of their portfolio | 298.8k $13.7m | Reduced -232.6k |
| Granite Investment Partners, LLC 0.56% of their portfolio | 293.5k $13.5m | Added +744 |
| CITADEL ADVISORS LLC 0.01% of their portfolio | 286.0k $13.1m | Added +167.6k |
| MORGAN STANLEY 0.00% of their portfolio | 283.2k $13.0m | Added +21.9k |
| G2 Investment Partners Management LLC 3.07% of their portfolio | 272.9k $12.5m | Added +37.5k |
| TWO SIGMA ADVISERS, LP 0.03% of their portfolio | 265.4k $12.2m | Added +21.0k |
| TD Asset Management Inc 0.01% of their portfolio | 261.3k $12.0m | Unchanged |
| Pier Capital, LLC 1.91% of their portfolio | 259.0k $11.9m | Added +58.6k |
| TWO SIGMA INVESTMENTS, LP 0.03% of their portfolio | 239.5k $11.0m | Added +186.9k |
| Redwood Investments, LLC 1.44% of their portfolio | 232.0k $10.6m | Reduced -17.2k |
| PICTON MAHONEY ASSET MANAGEMENT 0.48% of their portfolio | 224.9k $10.3m | Added +24.0k |
| PRINCIPAL FINANCIAL GROUP INC 0.01% of their portfolio | 219.3k $10.1m | Added +182 |
| DEUTSCHE BANK AG\ 0.01% of their portfolio | 216.7k $9.9m | Reduced -22.6k |
| GOLDMAN SACHS GROUP INC 0.00% of their portfolio | 204.8k $9.4m | Reduced -16.2k |
| RHUMBLINE ADVISERS 0.01% of their portfolio | 188.3k $8.6m | Added +3.0k |
| LORD, ABBETT & CO. LLC 0.02% of their portfolio | 181.8k $8.3m | Reduced -808.5k |
| NEW YORK STATE COMMON RETIREMENT FUND 0.01% of their portfolio | 174.7k $8.0m | Added +109.8k |
| BNP PARIBAS FINANCIAL MARKETS 0.02% of their portfolio | 168.3k $7.7m | Added +81.3k |
| Penserra Capital Management LLC 0.15% of their portfolio | 161.8k $7.4m | Added +39.0k |
| Squarepoint Ops LLC 0.03% of their portfolio | 154.8k $7.1m | Reduced -60.5k |
| CW Advisors, LLC 0.15% of their portfolio | 153.5k $7.0m | Added +43.1k |
| RENAISSANCE TECHNOLOGIES LLC 0.01% of their portfolio | 151.8k $7.0m | Reduced -473.0k |
| SORA INVESTORS LLC 1.54% of their portfolio | 150.0k $6.9m | New |
| NATIONAL BANK OF CANADA /FI/ 0.01% of their portfolio | 144.3k $6.3m | Added +24.3k |
| THORNBURG INVESTMENT MANAGEMENT INC 0.11% of their portfolio | 141.7k $6.5m | Reduced -3.7k |
| SEI INVESTMENTS CO 0.01% of their portfolio | 141.6k $6.5m | Reduced -52.8k |
| Man Group plc 0.02% of their portfolio | 137.5k $6.3m | New |
| Penn Capital Management Company, LLC 0.63% of their portfolio | 134.6k $6.2m | New |
| STATE OF WISCONSIN INVESTMENT BOARD 0.02% of their portfolio | 132.9k $6.1m | Reduced -6.3k |
| Swiss National Bank 0.00% of their portfolio | 131.0k $6.0m | Added +1.3k |
| NEUBERGER BERMAN GROUP LLC 0.01% of their portfolio | 130.5k $6.0m | Reduced -150.6k |
| Invesco Ltd. 0.00% of their portfolio | 118.6k $5.4m | Reduced -39.1k |
| Cubist Systematic Strategies, LLC 0.07% of their portfolio | 116.5k $5.3m | Reduced -84.5k |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 115.5k $5.3m | Reduced -5.4k |
| AMERICAN INTERNATIONAL GROUP, INC. 0.03% of their portfolio | 112.1k $5.1m | Reduced -2.7k |
| BRITISH COLUMBIA INVESTMENT MANAGEMENT Corp 0.05% of their portfolio | 110.0k $5.0m | New |
| Engineers Gate Manager LP 0.18% of their portfolio | 108.0k $5.0m | Added +29.9k |
| SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT, LLC 0.30% of their portfolio | 104.0k $4.8m | Added +38.0k |
| Russell Investments Group, Ltd. 0.01% of their portfolio | 103.7k $4.8m | Added +1.9k |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND 0.02% of their portfolio | 103.6k $4.7m | Added +57.6k |
| PANAGORA ASSET MANAGEMENT INC 0.03% of their portfolio | 103.2k $4.7m | Added +339 |
| GREAT LAKES ADVISORS, LLC 0.04% of their portfolio | 101.8k $4.7m | Added +549 |
| Legal & General Group Plc 0.00% of their portfolio | 90.6k $4.2m | Reduced -1.2k |
| MUTUAL OF AMERICA CAPITAL MANAGEMENT LLC 0.05% of their portfolio | 88.2k $4.0m | Added +2.4k |
| CAPITAL FUND MANAGEMENT S.A. 0.05% of their portfolio | 81.2k $3.7m | Reduced -16.6k |
| Jump Financial, LLC 0.13% of their portfolio | 78.3k $3.6m | Reduced -5.2k |
| Retirement Systems of Alabama 0.02% of their portfolio | 73.7k $3.4m | Reduced -570 |
| MILLENNIUM MANAGEMENT LLC 0.00% of their portfolio | 73.3k $3.4m | Reduced -144.1k |
| Atika Capital Management LLC 0.47% of their portfolio | 72.0k $3.3m | Reduced -180.9k |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE 0.00% of their portfolio | 70.9k $3.3m | Added +5.9k |
| ALGERT GLOBAL LLC 0.15% of their portfolio | 68.0k $3.1m | Added +35.3k |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.00% of their portfolio | 65.7k $3.0m | Reduced -6.3k |
| Trexquant Investment LP 0.07% of their portfolio | 64.0k $2.9m | Reduced -17.3k |
| MetLife Investment Management, LLC 0.02% of their portfolio | 63.8k $2.9m | Reduced -741 |
| TOWNSQUARE CAPITAL LLC 0.05% of their portfolio | 60.7k $2.8m | Added +19.8k |
| NEW YORK STATE TEACHERS RETIREMENT SYSTEM 0.01% of their portfolio | 60.3k $2.8m | Reduced -4.1k |
| Connor, Clark & Lunn Investment Management Ltd. 0.01% of their portfolio | 60.0k $2.7m | Added +10.5k |
| CREDIT SUISSE AG/ 0.00% of their portfolio | 59.2k $2.7m | Reduced -2.2k |
| AQR CAPITAL MANAGEMENT LLC 0.01% of their portfolio | 59.0k $2.7m | Reduced -75.1k |
| State of New Jersey Common Pension Fund D 0.01% of their portfolio | 55.5k $2.5m | Added +4.1k |
| Magnetar Financial LLC 0.06% of their portfolio | 55.3k $2.5m | New |
| MARATHON CAPITAL MANAGEMENT 0.62% of their portfolio | 54.1k $2.5m | New |
| ROYCE & ASSOCIATES LP 0.02% of their portfolio | 51.0k $2.3m | Reduced -242.6k |