APPLIED OPTOELECTRONICS INC (AAOI)
Institutional ownership reported to the SEC as of Q2 2026, across 31 quarters.
468
Reporting holders
$11.0B
Reported value
61.0%
Of shares outstanding
30.2%
Held as options
+101
Holder change
Institutions report 51,617,372 shares against 84,569,237 outstanding. Shares only - option lines are excluded, which is why this can be compared with the company at all. The count comes from the cover page of the company's own most recent report, so it is dated when that was filed rather than at quarter end.
Options share is the part of reported value carried in derivative lines rather than shares. A high figure means institutions are expressing a view on this security without owning much of it.
Holders
| Filer | Value | Shares | Their book | Held | Change |
|---|---|---|---|---|---|
| BlackRock, Inc. | $955.7M | 6,450,270 | 0.01% | 8q | -10.3%-$109.9M |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | $895.2M | 648,986 | 0.07% | 31q | +646.2%+$775.2M |
| Marex Group Ltd | $846.0M | 2,830,272 | 3.59% | 2q | +878.8%+$759.6M |
| JANE STREET GROUP, LLC | $711.3M | 563,557 | 0.06% | 13q | -75.3%-$2.2B |
| Invesco Ltd. | $505.9M | 3,414,262 | 0.04% | 11q | +69.5%+$207.4M |
| VANGUARD CAPITAL MANAGEMENT LLC | $498.3M | 3,363,001 | 0.01% | 2q | +9.8%+$44.7M |
| CITADEL ADVISORS LLC | $429.5M | 72,798 | 0.05% | 31q | -82.7%-$2.1B |
| VANGUARD PORTFOLIO MANAGEMENT LLC | $392.9M | 2,651,718 | 0.02% | 2q | +47.2%+$125.9M |
| IMC-Chicago, LLC | $333.8M | 223,442 | 0.08% | 10q | +101.5%+$168.1M |
| UBS Group AG | $315.5M | 2,111,464 | 0.04% | 31q | +117.5%+$170.5M |
| OBERWEIS ASSET MANAGEMENT INC/ | $265.4M | 1,791,127 | 5.48% | 12q | -23.8%-$82.8M |
| GEODE CAPITAL MANAGEMENT, LLC | $247.6M | 1,670,936 | 0.01% | 31q | +3.1%+$7.4M |
| Value Aligned Research Advisors, LLC | $240.1M | 1,595,124 | 0.60% | 2q | +25.8%+$49.3M |
| GOLDMAN SACHS GROUP INC | $235.0M | 1,586,453 | 0.02% | 12q | +46.2%+$74.3M |
| STATE STREET CORP | $221.9M | 1,497,617 | 0.01% | 31q | -8.9%-$21.7M |
| Hood River Capital Management LLC | $206.3M | 1,392,510 | 1.50% | 4q | +9.2%+$17.3M |
| Clear Street Group Inc. | $182.4M | 1,231,143 | 0.46% | new | NEW |
| MORGAN STANLEY | $165.2M | 1,115,138 | 0.01% | 35q | +53.3%+$57.4M |
| JPMORGAN CHASE & CO | $161.0M | 1,068,246 | 0.01% | 9q | -3.9%-$6.5M |
| FRONTIER CAPITAL MANAGEMENT CO LLC | $144.5M | 975,318 | 1.35% | 2q | +243.2%+$102.4M |
| Capula Management Ltd | $112.7M | 380,749 | 0.40% | new | NEW |
| D. E. Shaw & Co., Inc. | $103.0M | 41,056 | 0.05% | 11q | -98.1%-$5.2B |
| GROUP ONE TRADING LLC | $93.5M | 110,362 | 0.13% | 13q | -18.8%-$21.7M |
| Walleye Trading LLC | $92.6M | options only | 0.11% | 7q | OPTIONS |
| CITIGROUP INC | $75.7M | 60,912 | 0.03% | 31q | -59.5%-$111.1M |
| WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC | $74.7M | 504,202 | 0.22% | new | NEW |
| VANGUARD FIDUCIARY TRUST CO | $72.4M | 488,922 | 0.02% | 2q | +9.2%+$6.1M |
| SIMPLEX TRADING, LLC | $70.9M | 419 | 0.04% | 14q | -98.9%-$6.7B |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $70.5M | 476,027 | 0.01% | 12q | -10.6%-$8.3M |
| Sixth Street Partners Management Company, L.P. | $70.5M | 476,027 | 0.01% | new | NEW |
| NORTHERN TRUST CORP | $61.9M | 417,720 | 0.01% | 31q | -28.4%-$24.6M |
| TUDOR INVESTMENT CORP ET AL | $56.4M | 60,695 | 0.08% | 7q | -86.3%-$354.8M |
| Point72 Asset Management, L.P. | $51.5M | options only | 0.06% | 4q | OPTIONS |
| GILDER GAGNON HOWE & CO LLC | $50.8M | 343,014 | 0.52% | 5q | -24.7%-$16.6M |
| Arete Wealth Advisors, LLC | $49.4M | 333,252 | 1.08% | new | NEW |
| DIMENSIONAL FUND ADVISORS LP | $45.9M | 309,932 | 0.01% | 31q | HELD |
| Focus Partners Wealth | $42.4M | 286,179 | 0.04% | 3q | -24.5%-$13.8M |
| NOMURA HOLDINGS INC | $42.0M | 83,298 | 0.05% | new | NEW |
| Steward Partners Investment Advisory, LLC | $40.1M | 270,751 | 0.20% | 4q | HELD |
| MILLENNIUM MANAGEMENT LLC | $39.6M | 126,326 | 0.01% | 3q | +31.0%+$9.4M |
| BNP PARIBAS FINANCIAL MARKETS | $37.3M | 252,013 | 0.01% | 12q | +1195.8%+$34.5M |
| WESTFIELD CAPITAL MANAGEMENT CO LP | $37.0M | 249,553 | 0.12% | new | NEW |
| WELLINGTON MANAGEMENT GROUP LLP | $36.2M | 244,081 | 0.01% | 2q | -5.3%-$2.0M |
| VICTORY CAPITAL MANAGEMENT INC | $36.0M | 243,197 | 0.02% | 3q | +371.0%+$28.4M |
| NEUBERGER BERMAN GROUP LLC | $35.9M | 242,612 | 0.02% | 2q | -53.1%-$40.7M |
| Funde Sino Life Insurance Co Ltd | $35.6M | 240,612 | 5.81% | new | FIRST |
| RAYMOND JAMES FINANCIAL INC | $34.8M | 235,127 | 0.01% | 7q | -68.0%-$73.9M |
| Squarepoint Ops LLC | $34.4M | 114,429 | 0.04% | 5q | -76.9%-$114.6M |
| BANK OF AMERICA CORP /DE/ | $33.7M | 227,539 | 0.00% | 13q | -5.5%-$2.0M |
| Bank of New York Mellon Corp | $32.6M | 219,812 | 0.01% | 9q | +28.6%+$7.2M |
| EMERALD ADVISERS, LLC | $31.3M | 211,574 | 0.74% | 10q | -51.2%-$32.9M |
| AMERIPRISE FINANCIAL INC | $31.3M | 211,480 | 0.01% | 31q | -61.4%-$49.9M |
| MARSHALL WACE, LLP | $28.0M | 181,389 | 0.02% | 4q | +1.1%+$304.1K |
| CANADA PENSION PLAN INVESTMENT BOARD | $27.9M | 188,500 | 0.02% | new | NEW |
| Balyasny Asset Management L.P. | $27.9M | 175,683 | 0.03% | 9q | -62.5%-$46.6M |
| Nuveen, LLC | $26.9M | 181,377 | 0.01% | 6q | -52.6%-$29.8M |
| Oak Grove Capital LLC | $25.1M | 159,150 | 1.19% | 2q | +329.6%+$19.2M |
| VOYA INVESTMENT MANAGEMENT LLC | $24.0M | 162,017 | 0.02% | 9q | -32.7%-$11.7M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | $23.4M | 158,204 | 0.00% | 9q | +50.0%+$7.8M |
| UNICOM Systems, Inc. | $22.6M | 152,483 | 1.47% | 2q | +122.3%+$12.4M |
| Weiss Asset Management LP | $22.5M | 151,868 | 0.24% | new | NEW |
| Swiss National Bank | $21.9M | 148,000 | 0.01% | 10q | +15.4%+$2.9M |
| Jain Global LLC | $21.6M | 145,938 | 0.08% | 4q | +85.6%+$10.0M |
| Assenagon Asset Management S.A. | $21.4M | 144,328 | 0.01% | 2q | +196.0%+$14.2M |
| KENNEDY CAPITAL MANAGEMENT LLC | $21.2M | 143,000 | 0.38% | 3q | -48.8%-$20.2M |
| Driehaus Capital Management LLC | $20.7M | 139,416 | 0.12% | 5q | -78.0%-$73.0M |
| EMERALD MUTUAL FUND ADVISERS TRUST | $20.3M | 136,959 | 0.71% | 10q | -49.6%-$20.0M |
| NORGES BANK | $19.4M | 131,200 | 0.00% | new | NEW |
| Shellback Capital, LP | $19.4M | 131,004 | 1.70% | 2q | +101.5%+$9.8M |
| FIRST TRUST ADVISORS LP | $19.2M | 129,769 | 0.01% | 5q | -40.0%-$12.8M |
| ROYAL BANK OF CANADA | $17.0M | 114,758 | 0.00% | 10q | -10.3%-$2.0M |
| ALGERT GLOBAL LLC | $16.4M | 110,843 | 0.19% | 4q | -48.0%-$15.2M |
| Tidal Investments LLC | $16.3M | 14,843 | 0.03% | 2q | +174.4%+$10.3M |
| Allianz Asset Management GmbH | $16.2M | 7,803 | 0.01% | new | NEW |
| SILVERCREST ASSET MANAGEMENT GROUP LLC | $15.8M | 106,911 | 0.10% | 8q | -26.6%-$5.8M |
| FRED ALGER MANAGEMENT, LLC | $15.1M | 101,831 | 0.05% | new | NEW |
| FEDERATED HERMES, INC. | $14.9M | 100,296 | 0.02% | 2q | +42761.5%+$14.8M |
| Fund Resources Investment Holding Group Co Ltd | $14.8M | 99,976 | 0.91% | new | NEW |
| Alphadyne Asset Management LP | $14.7M | options only | 0.14% | 2q | OPTIONS |
| PEAK6 LLC | $14.1M | options only | 0.03% | 7q | OPTIONS |
| CAPITAL FUND MANAGEMENT S.A. | $13.4M | 37,487 | 0.06% | 10q | +5.0%+$636.9K |
| TWO SIGMA INVESTMENTS, LP | $13.3M | 22,113 | 0.01% | 11q | -93.5%-$192.2M |
| SEI INVESTMENTS CO | $13.3M | 89,584 | 0.01% | 3q | -43.6%-$10.3M |
| COMMONWEALTH EQUITY SERVICES, LLC | $11.4M | 77,213 | 0.01% | 3q | -13.9%-$1.8M |
| 1492 Capital Management LLC | $11.3M | 76,405 | 3.34% | 3q | -38.9%-$7.2M |
| RHUMBLINE ADVISERS | $11.2M | 75,872 | 0.01% | 9q | -6.5%-$787.0K |
| Zweig-DiMenna Associates LLC | $10.6M | 71,835 | 0.97% | 3q | -10.3%-$1.2M |
| SPX Gestao de Recursos Ltda | $10.5M | 71,000 | 0.59% | new | NEW |
| FIFTH THIRD BANCORP | $10.5M | 70,932 | 0.02% | 2q | +267.0%+$7.6M |
| Russell Investments Group, Ltd. | $10.4M | 69,926 | 0.01% | 8q | +95.9%+$5.1M |
| Global Trust Asset Management, LLC | $10.3M | 69,849 | 3.24% | 3q | +17.3%+$1.5M |
| Legal & General Group Plc | $9.4M | 63,555 | 0.00% | 10q | -1.9%-$184.2K |
| Artemis Wealth Advisors, LLC | $9.4M | 38,000 | 0.56% | 2q | +192.3%+$6.2M |
| AXIOM INVESTORS LLC /DE | $9.4M | 63,178 | 0.08% | 2q | -33.5%-$4.7M |
| Verition Fund Management LLC | $9.2M | 62,328 | 0.02% | 4q | -55.8%-$11.7M |
| STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM | $9.2M | 61,806 | 0.02% | 3q | +311.0%+$6.9M |
| FirstWave Capital Management LLC | $8.6M | 58,277 | 3.81% | 2q | +199.6%+$5.8M |
| NOMURA ASSET MANAGEMENT INTERNATIONAL INC. | $8.5M | 57,532 | 0.01% | new | NEW |
| Timothy G. Youngquist 2020 Irrevocable Trust | $8.3M | 55,796 | 1.62% | 3q | +16.5%+$1.2M |
| RICE HALL JAMES & ASSOCIATES, LLC | $8.3M | 55,769 | 0.40% | 10q | -43.3%-$6.3M |
Five percent filings
Anyone crossing 5% of a company must say so within days - far sooner than the next quarterly holdings report. A 13D declares an intent to influence the company; a 13G is the passive version. See all activist filings →
| Filed | Form | Filer | % of class |
|---|---|---|---|
| 2026-08-10 | 13G/A | JANE STREET GROUP, LLCwith 4 co-filers | 2.4% |
| 2026-07-27 | 13G/A | BlackRock, Inc. | 5.4% |
Quarter by quarter
Coverage begins with the quarter ending 2018-12-31. Earlier filings exist only as occasional late amendments, too sparse to describe a market, so they are not shown.
| Quarter | Holders | Value | Shares | New | Added | Trimmed | Options |
|---|---|---|---|---|---|---|---|
| Q2 2026 | 468 | $11.0B | 51,617,372 | 166 | 128 | 138 | 30.2% |
| Q1 2026 | 367 | $5.5B | 50,610,415 | 175 | 91 | 74 | 23.0% |
| Q4 2025 | 212 | $2.0B | 45,345,536 | 60 | 80 | 43 | 20.8% |
| Q3 2025 | 173 | $1.3B | 39,475,539 | 52 | 51 | 39 | 21.4% |
| Q2 2025 | 145 | $961.0M | 33,308,563 | 37 | 60 | 30 | 10.9% |
| Q1 2025 | 139 | $519.9M | 30,934,375 | 23 | 58 | 34 | 8.6% |
| Q4 2024 | 151 | $1.3B | 29,494,361 | 37 | 53 | 36 | 18.2% |
| Q3 2024 | 137 | $464.5M | 29,144,636 | 38 | 40 | 34 | 10.2% |
| Q2 2024 | 129 | $266.2M | 29,182,140 | 36 | 40 | 36 | 9.3% |
| Q1 2024 | 116 | $430.7M | 28,841,339 | 41 | 34 | 27 | 7.4% |
| Q4 2023 | 106 | $502.5M | 23,697,636 | 43 | 21 | 26 | 8.9% |
| Q3 2023 | 79 | $202.9M | 14,730,340 | 34 | 18 | 19 | 20.4% |
| Q2 2023 | 54 | $71.9M | 11,592,851 | 15 | 15 | 10 | 4.0% |
| Q1 2023 | 47 | $18.8M | 8,453,621 | 7 | 11 | 16 | 0.6% |
| Q4 2022 | 53 | $17.0M | 8,618,788 | 10 | 9 | 20 | 4.0% |
| Q3 2022 | 56 | $26.8M | 9,276,178 | 12 | 12 | 23 | 5.9% |
| Q2 2022 | 52 | $15.4M | 9,484,067 | 4 | 14 | 24 | 4.4% |
| Q1 2022 | 63 | $37.2M | 9,751,463 | 5 | 15 | 29 | 4.3% |
| Q4 2021 | 81 | $61.8M | 11,047,377 | 19 | 24 | 27 | 8.1% |
| Q3 2021 | 97 | $102.5M | 13,458,457 | 10 | 39 | 22 | 5.7% |
| Q2 2021 | 107 | $119.5M | 13,216,575 | 20 | 29 | 37 | 6.3% |
| Q1 2021 | 106 | $126.8M | 14,081,938 | 19 | 43 | 23 | 7.2% |
| Q4 2020 | 105 | $116.0M | 11,582,671 | 17 | 31 | 32 | 15.0% |
| Q3 2020 | 108 | $139.8M | 10,932,046 | 12 | 40 | 27 | 12.0% |
| Q2 2020 | 113 | $151.3M | 12,668,473 | 23 | 31 | 26 | 9.0% |
| Q1 2020 | 99 | $102.5M | 12,015,703 | 10 | 33 | 31 | 11.0% |
| Q4 2019 | 118 | $176.5M | 12,365,182 | 19 | 23 | 39 | 16.8% |
| Q3 2019 | 115 | $169.7M | 12,429,672 | 8 | 41 | 29 | 17.8% |
| Q2 2019 | 127 | $180.5M | 13,720,714 | 20 | 51 | 25 | 21.8% |
| Q1 2019 | 134 | $179.2M | 12,581,250 | 22 | 39 | 39 | 14.3% |
| Q4 2018 | 138 | $245.4M | 12,170,605 | 5 | 3 | 1 | 23.5% |