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 ($2.0m this quarter). Holder counts are more reliable. Shares outstanding: 66.3m as of 2023-07-17, 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 ≈ $49.91. Options: 11 managers hold calls ($15.6m notional), 10 hold puts ($1.8m).
Trends to Q2 2023
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 231 |
| Q4 2022 | 275 |
| Q1 2023 | 272 |
| Q2 2023 | 268 |
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 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q3 2022 | $16.1m | $10.1m | 0.63 |
| Q4 2022 | $15.3m | $5.8m | 0.38 |
| Q1 2023 | $6.3m | $3.1m | 0.49 |
| Q2 2023 | $15.6m | $1.8m | 0.11 |
Biggest buyers
| WESTFIELD CAPITAL MANAGEMENT CO LP | New | +531.4k |
| Artisan Partners Limited Partnership | New | +520.2k |
| Thrivent Financial for Lutherans | Added | +471.9k |
| Driehaus Capital Management LLC | Added | +330.5k |
| VANGUARD GROUP INC | Added | +327.3k |
| Polar Asset Management Partners Inc. | Added | +253.1k |
| Mesirow Institutional Investment Management, Inc. | Added | +247.7k |
| Alyeska Investment Group, L.P. | New | +213.8k |
| VOYA INVESTMENT MANAGEMENT LLC | Added | +200.8k |
| BlackRock Inc. | Added | +195.9k |
Biggest sellers
| Hood River Capital Management LLC | Sold out | -1.3m |
| Invesco Ltd. | Reduced | -980.9k |
| NEUBERGER BERMAN GROUP LLC | Reduced | -903.2k |
| SG Capital Management LLC | Sold out | -373.4k |
| GILDER GAGNON HOWE & CO LLC | Reduced | -326.1k |
| ALLIANCEBERNSTEIN L.P. | Reduced | -279.0k |
| RENAISSANCE TECHNOLOGIES LLC | Reduced | -225.9k |
| Divisadero Street Capital Management, LP | Sold out | -220.0k |
| FULLER & THALER ASSET MANAGEMENT, INC. | Sold out | -183.4k |
| Atika Capital Management LLC | Reduced | -155.6k |
Biggest calls
| SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT, LLC | New | $12.5m250.0k shares |
| CITADEL ADVISORS LLC | Reduced | $673.8k13.5k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $574.0k11.5k shares |
| JANE STREET GROUP, LLC | Reduced | $509.1k10.2k shares |
| TWO SIGMA SECURITIES, LLC | Added | $454.2k9.1k shares |
| Walleye Trading LLC | Added | $359.4k7.2k shares |
| SIMPLEX TRADING, LLC | Reduced | $294.0k5.9k shares |
| Walleye Capital LLC | Added | $174.7k3.5k shares |
| GROUP ONE TRADING LLC | Reduced | $79.9k1.6k shares |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | Unchanged | $00 shares |
Biggest puts
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $738.7k14.8k shares |
| TUDOR INVESTMENT CORP ET AL | New | $279.5k5.6k shares |
| JANE STREET GROUP, LLC | Added | $239.6k4.8k shares |
| Walleye Trading LLC | Reduced | $224.6k4.5k shares |
| CITADEL ADVISORS LLC | Reduced | $134.8k2.7k shares |
| SIMPLEX TRADING, LLC | Reduced | $84.0k1.7k shares |
| Walleye Capital LLC | Reduced | $64.9k1.3k shares |
| GROUP ONE TRADING LLC | New | $5.0k100 shares |
| Cutler Group LLC / CA | Reduced | $1.0k900 shares |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | Unchanged | $00 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 Q2 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 |
|---|---|---|---|---|---|
| Q3 2021 | 0 | — | 0 | — | — |
| 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 | — |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2023-05-02 | Collins John Matthew Chief Commercial Ops Officer | Sold | $220.5k5.0k 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, Q2 2023
| Manager | Shares | Change |
|---|---|---|
| BlackRock Inc. 0.01% of their portfolio | 8.1m $403.4m | Added +195.9k |
| VANGUARD GROUP INC 0.01% of their portfolio | 6.1m $302.8m | Added +327.3k |
| STATE STREET CORP 0.01% of their portfolio | 1.9m $96.3m | Added +18.2k |
| ALLIANCEBERNSTEIN L.P. 0.04% of their portfolio | 1.9m $93.6m | Reduced -279.0k |
| GILDER GAGNON HOWE & CO LLC 1.25% of their portfolio | 1.8m $91.5m | Reduced -326.1k |
| DIMENSIONAL FUND ADVISORS LP 0.03% of their portfolio | 1.6m $82.1m | Reduced -10.4k |
| Bank of New York Mellon Corp 0.01% of their portfolio | 1.3m $67.3m | Reduced -60.0k |
| WELLINGTON MANAGEMENT GROUP LLP 0.01% of their portfolio | 1.3m $63.7m | Added +147.4k |
| AMERIPRISE FINANCIAL INC 0.02% of their portfolio | 1.2m $61.9m | Added +91.5k |
| Thrivent Financial for Lutherans 0.14% of their portfolio | 1.2m $61.5m | Added +471.9k |
| GEODE CAPITAL MANAGEMENT, LLC 0.01% of their portfolio | 1.1m $56.7m | Added +64.1k |
| LORD, ABBETT & CO. LLC 0.09% of their portfolio | 990.3k $49.4m | Added +120.3k |
| Assenagon Asset Management S.A. 0.19% of their portfolio | 951.3k $47.5m | Reduced -30.2k |
| PARADIGM CAPITAL MANAGEMENT INC/NY 2.61% of their portfolio | 914.1k $45.6m | Reduced -6.3k |
| NORTHERN TRUST CORP 0.01% of their portfolio | 851.1k $42.5m | Added +11.5k |
| LOOMIS SAYLES & CO L P 0.07% of their portfolio | 814.7k $40.7m | Reduced -7.5k |
| Driehaus Capital Management LLC 0.49% of their portfolio | 784.7k $39.2m | Added +330.5k |
| Schonfeld Strategic Advisors LLC 0.31% of their portfolio | 713.2k $35.6m | Added +142.6k |
| KORNITZER CAPITAL MANAGEMENT INC /KS 0.64% of their portfolio | 656.8k $32.8m | Unchanged |
| RENAISSANCE TECHNOLOGIES LLC 0.04% of their portfolio | 624.8k $31.2m | Reduced -225.9k |
| MACQUARIE GROUP LTD 0.03% of their portfolio | 603.4k $30.1m | Added +168.3k |
| Weiss Multi-Strategy Advisers LLC 0.63% of their portfolio | 583.5k $29.1m | Added +183.5k |
| NORGES BANK 0.01% of their portfolio | 545.1k $27.2m | Added +29.0k |
| CONGRESS ASSET MANAGEMENT CO 0.24% of their portfolio | 544.8k $27.2m | Added +134.8k |
| Allspring Global Investments Holdings, LLC 0.04% of their portfolio | 531.4k $26.5m | Added +135.4k |
| WESTFIELD CAPITAL MANAGEMENT CO LP 0.17% of their portfolio | 531.4k $26.5m | New |
| MARSHALL WACE, LLP 0.06% of their portfolio | 524.5k $26.2m | Added +47.7k |
| Artisan Partners Limited Partnership 0.04% of their portfolio | 520.2k $26.0m | New |
| AXA S.A. 0.08% of their portfolio | 489.9k $24.4m | Added +10.0k |
| Polar Asset Management Partners Inc. 0.47% of their portfolio | 478.2k $23.9m | Added +253.1k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.01% of their portfolio | 441.0k $22.0m | Added +9.6k |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 415.1k $20.7m | Added +34.6k |
| Ophir Asset Management Pty Ltd 4.06% of their portfolio | 390.1k $19.5m | Reduced -24.3k |
| Mirae Asset Global Investments Co., Ltd. 0.04% of their portfolio | 339.4k $16.9m | Added +25.8k |
| Analog Century Management LP 4.61% of their portfolio | 332.5k $16.6m | Added +155.3k |
| ROYCE & ASSOCIATES LP 0.14% of their portfolio | 293.5k $14.6m | Added +8.9k |
| Granite Investment Partners, LLC 0.58% of their portfolio | 292.8k $14.6m | Reduced -2.5k |
| Nuveen Asset Management, LLC 0.01% of their portfolio | 292.3k $14.6m | Added +57.7k |
| RK Capital Management, LLC 3.08% of their portfolio | 287.5k $14.3m | Added +32.4k |
| NEUBERGER BERMAN GROUP LLC 0.01% of their portfolio | 281.1k $14.0m | Reduced -903.2k |
| VOYA INVESTMENT MANAGEMENT LLC 0.01% of their portfolio | 270.4k $13.5m | Added +200.8k |
| Epoch Investment Partners, Inc. 0.08% of their portfolio | 269.7k $13.5m | Added +40.9k |
| TD Asset Management Inc 0.01% of their portfolio | 261.3k $13.0m | Added +39.7k |
| MORGAN STANLEY 0.00% of their portfolio | 261.3k $13.0m | Reduced -50.4k |
| Mesirow Institutional Investment Management, Inc. 1.32% of their portfolio | 257.2k $12.8m | Added +247.7k |
| Atika Capital Management LLC 1.59% of their portfolio | 252.9k $12.6m | Reduced -155.6k |
| Redwood Investments, LLC 1.52% of their portfolio | 249.2k $12.4m | Added +37.8k |
| TWO SIGMA ADVISERS, LP 0.03% of their portfolio | 244.4k $12.2m | Added +14.1k |
| Liontrust Investment Partners LLP 0.17% of their portfolio | 241.8k $12.1m | Reduced -11.3k |
| DEUTSCHE BANK AG\ 0.01% of their portfolio | 239.4k $11.9m | Added +33.6k |
| G2 Investment Partners Management LLC 2.88% of their portfolio | 235.4k $11.8m | Added +139.4k |
| GOLDMAN SACHS GROUP INC 0.00% of their portfolio | 221.0k $11.0m | Reduced -52.3k |
| PRINCIPAL FINANCIAL GROUP INC 0.01% of their portfolio | 219.1k $10.9m | Reduced -7.0k |
| MILLENNIUM MANAGEMENT LLC 0.01% of their portfolio | 217.4k $10.8m | Reduced -154.6k |
| Squarepoint Ops LLC 0.06% of their portfolio | 215.3k $10.7m | Added +11.9k |
| Alyeska Investment Group, L.P. 0.08% of their portfolio | 213.8k $10.7m | New |
| Cubist Systematic Strategies, LLC 0.11% of their portfolio | 201.1k $10.0m | Reduced -25.5k |
| PICTON MAHONEY ASSET MANAGEMENT 0.49% of their portfolio | 200.8k $10.0m | Added +16.5k |
| Pier Capital, LLC 1.44% of their portfolio | 200.4k $10.0m | Added +54.3k |
| INTRINSIC EDGE CAPITAL MANAGEMENT LLC 0.78% of their portfolio | 200.0k $10.0m | Reduced -51.2k |
| SEI INVESTMENTS CO 0.02% of their portfolio | 194.4k $9.7m | Added +29.1k |
| RHUMBLINE ADVISERS 0.01% of their portfolio | 185.3k $9.2m | Added +529 |
| Cinctive Capital Management LP 0.35% of their portfolio | 179.8k $9.0m | New |
| Man Group plc 0.03% of their portfolio | 174.7k $8.7m | New |
| Invesco Ltd. 0.00% of their portfolio | 157.6k $7.9m | Reduced -980.9k |
| THORNBURG INVESTMENT MANAGEMENT INC 0.12% of their portfolio | 145.4k $7.3m | Reduced -11.6k |
| STATE OF WISCONSIN INVESTMENT BOARD 0.02% of their portfolio | 139.3k $7.0m | Added +7.3k |
| AQR CAPITAL MANAGEMENT LLC 0.01% of their portfolio | 134.1k $6.7m | Added +53.3k |
| Swiss National Bank 0.00% of their portfolio | 129.7k $6.5m | Added +2.6k |
| Penserra Capital Management LLC 0.12% of their portfolio | 122.8k $6.1m | Added +47.4k |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 120.9k $6.0m | Reduced -46.5k |
| NATIONAL BANK OF CANADA /FI/ 0.01% of their portfolio | 120.0k $5.9m | Added +119.0k |
| CITADEL ADVISORS LLC 0.01% of their portfolio | 118.4k $5.9m | Reduced -28.8k |
| AMERICAN INTERNATIONAL GROUP, INC. 0.03% of their portfolio | 114.8k $5.7m | Reduced -212 |
| CW Advisors, LLC 0.13% of their portfolio | 110.5k $5.5m | Added +25.4k |
| JANE STREET GROUP, LLC 0.01% of their portfolio | 103.8k $5.2m | Added +74.4k |
| Voce Capital Management LLC 8.88% of their portfolio | 102.9k $5.1m | Unchanged |
| PANAGORA ASSET MANAGEMENT INC 0.03% of their portfolio | 102.9k $5.1m | New |
| Russell Investments Group, Ltd. 0.01% of their portfolio | 101.9k $5.1m | Reduced -21.5k |
| GREAT LAKES ADVISORS, LLC 0.05% of their portfolio | 101.2k $5.1m | Reduced -55.6k |
| DISCOVERY CAPITAL MANAGEMENT, LLC / CT 0.58% of their portfolio | 99.1k $4.9m | Added +29.7k |
| CAPITAL FUND MANAGEMENT S.A. 0.08% of their portfolio | 97.8k $4.9m | Added +38.0k |
| Legal & General Group Plc 0.00% of their portfolio | 91.8k $4.6m | Added +3.0k |
| BNP PARIBAS FINANCIAL MARKETS 0.01% of their portfolio | 86.9k $4.3m | Reduced -18.5k |
| MUTUAL OF AMERICA CAPITAL MANAGEMENT LLC 0.05% of their portfolio | 85.8k $4.3m | Reduced -7.3k |
| Jump Financial, LLC 0.15% of their portfolio | 83.5k $4.2m | Added +11.2k |
| Trexquant Investment LP 0.11% of their portfolio | 81.3k $4.1m | New |
| VICTORY CAPITAL MANAGEMENT INC 0.00% of their portfolio | 79.4k $4.0m | Added +15.2k |
| Engineers Gate Manager LP 0.15% of their portfolio | 78.1k $3.9m | Reduced -11.5k |
| Roubaix Capital, LLC 2.86% of their portfolio | 78.0k $3.9m | Added +11.9k |
| Retirement Systems of Alabama 0.02% of their portfolio | 74.3k $3.7m | Reduced -121 |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.01% of their portfolio | 72.1k $3.6m | Reduced -1.1k |
| Jetstream Capital LLC 6.79% of their portfolio | 70.0k $3.5m | Added +6.0k |
| SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT, LLC 0.17% of their portfolio | 66.0k $3.3m | New |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE 0.00% of their portfolio | 65.0k $3.2m | Reduced -362 |
| NEW YORK STATE COMMON RETIREMENT FUND 0.00% of their portfolio | 64.9k $3.2m | Added +14.0k |
| MetLife Investment Management, LLC 0.02% of their portfolio | 64.5k $3.2m | Added +758 |
| NEW YORK STATE TEACHERS RETIREMENT SYSTEM 0.01% of their portfolio | 64.4k $3.2m | Reduced -300 |
| CREDIT SUISSE AG/ 0.00% of their portfolio | 61.4k $3.1m | Added +10.1k |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% of their portfolio | 56.1k $3.0m | Unchanged |