DIODES INC DIOD
COM · Common Stock · CUSIP 254543101 · ISIN US2545431015
American semiconductor manufacturer
- SectorTechnology
- IndustrySemiconductors & Related Devices
- HeadquartersPlano, TX
- Founded1959
- Websitediodes.com
- 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 ($2.4m this quarter). Holder counts are more reliable. Shares outstanding: 45.9m as of 2023-08-04, 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 ≈ $92.11. Options: 8 managers hold calls ($3.8m notional), 6 hold puts ($4.5m).
Trends to Q2 2023
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 295 |
| Q4 2022 | 331 |
| Q1 2023 | 341 |
| Q2 2023 | 356 |
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 | 160 | 142 |
| Q1 2023 | 163 | 165 |
| Q2 2023 | 181 | 154 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q3 2022 | $1.9m | $1.1m | 0.60 |
| Q4 2022 | $3.3m | $2.5m | 0.76 |
| Q1 2023 | $4.4m | $2.6m | 0.59 |
| Q2 2023 | $3.8m | $4.5m | 1.18 |
Biggest buyers
| VANGUARD GROUP INC | Added | +128.6k |
| BESSEMER GROUP INC | Added | +103.6k |
| MILLENNIUM MANAGEMENT LLC | Added | +88.3k |
| Invesco Ltd. | Added | +66.5k |
| Allspring Global Investments Holdings, LLC | Added | +52.9k |
| Qube Research & Technologies Ltd | Added | +48.8k |
| UBS Group AG | Added | +48.1k |
| ADAGE CAPITAL PARTNERS GP, L.L.C. | Added | +47.2k |
| AMERICAN CENTURY COMPANIES INC | Added | +47.1k |
| Cerity Partners LLC | New | +46.0k |
Biggest sellers
| EARNEST PARTNERS LLC | Reduced | -530.0k |
| LORD, ABBETT & CO. LLC | Reduced | -494.4k |
| ENVESTNET ASSET MANAGEMENT INC | Reduced | -474.1k |
| BANK OF AMERICA CORP /DE/ | Reduced | -298.9k |
| FMR LLC | Reduced | -292.8k |
| NEW YORK STATE COMMON RETIREMENT FUND | Reduced | -246.6k |
| DIMENSIONAL FUND ADVISORS LP | Reduced | -167.5k |
| FULLER & THALER ASSET MANAGEMENT, INC. | Reduced | -156.3k |
| SEI INVESTMENTS CO | Reduced | -139.4k |
| HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC | Reduced | -73.1k |
Biggest calls
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $1.7m18.7k shares |
| CITADEL ADVISORS LLC | Reduced | $887.9k9.6k shares |
| JANE STREET GROUP, LLC | New | $499.4k5.4k shares |
| Walleye Trading LLC | Added | $333.0k3.6k shares |
| PEAK6 Investments LLC | Added | $323.7k3.5k shares |
| GROUP ONE TRADING LLC | Added | $18.5k200 shares |
| SIMPLEX TRADING, LLC | New | $9.0k100 shares |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | Unchanged | $00 shares |
Biggest puts
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $2.4m26.2k shares |
| Walleye Trading LLC | Reduced | $1.1m11.5k shares |
| CITADEL ADVISORS LLC | Added | $601.2k6.5k shares |
| SIMPLEX TRADING, LLC | Added | $231.0k2.5k shares |
| PEAK6 Investments LLC | Added | $185.0k2.0k 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 filed 2025-07-17 | 14.6% |
| FMR LLC 13G · institution -2.9 pts · filed 2026-08-06 | 9.5% |
| VANGUARD PORTFOLIO MANAGEMENT LLC 13G · institution new · filed 2026-04-29 | 8.0% |
| STATE STREET CORP 13G · institution +0.7 pts · filed 2026-08-07 | 5.7% |
| VANGUARD CAPITAL MANAGEMENT LLC 13G · institution new · filed 2026-04-29 | 5.1% |
Fell to 5% or below in the last year: DIMENSIONAL FUND ADVISORS LP (4.8%, 2026-07-14), 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 | 0 | — | 5 | $17.7m | — |
| Q1 2022 | 0 | — | 3 | $3.8m | — |
| Q2 2022 | 1 | $140.0k | 1 | $49.0k | — |
| Q3 2022 | 0 | — | 2 | $285.3k | — |
| Q4 2022 | 0 | — | 3 | $6.0m | — |
| Q1 2023 | 0 | — | 7 | $8.9m | $900.0k |
| Q2 2023 | 0 | — | 7 | $6.2m | — |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2023-06-01 | Menard Peter M Director | Sold | $60.7k630 shares |
| 2023-05-30 | Yang Emily SVP Worldwide Sales/Marketing | Sold | $361.8k3.7k shares |
| 2023-05-30 | LU KEH SHEW President & CEO, director · Texastac Investments, LP | Sold | $291.0k3.0k shares |
| 2023-05-30 | White Richard Dallas Corporate Secretary | Sold | $192.7k2.0k shares |
| 2023-05-26 | LU KEH SHEW President & CEO, director | Sold | $289.2k3.0k shares |
| 2023-05-26 | Zhao Jin SVP, Worldwide Analog Products | Sold | $106.7k1.1k shares |
| 2023-05-26 | Yu Gary COO | Sold | $96.5k1.0k shares |
| 2023-05-22 | LU KEH SHEW President & CEO, director · The Lu Family Foundation | Sold | $256.6k2.7k shares |
| 2023-05-22 | LU KEH SHEW President & CEO, director · Texastac Investments, LP | Sold | $96.0k1.0k shares |
| 2023-05-22 | Yu Gary COO | Sold | $95.1k1.0k shares |
| 2023-05-19 | LU KEH SHEW President & CEO, director | Sold | $2.3m24.0k shares |
| 2023-05-18 | LU KEH SHEW President & CEO, director · The Lu Family Foundation | Sold | $1.0m11.0k shares |
| 2023-05-18 | Whitmire Brett R CFO | Sold | $169.6k1.8k shares |
| 2023-05-18 | Yang Emily SVP Worldwide Sales/Marketing | Sold | $154.0k1.6k shares |
| 2023-05-17 | LU KEH SHEW President & CEO, director · The Lu Family Foundation | Sold | $465.2k5.0k shares |
| 2023-05-17 | Yang Emily SVP Worldwide Sales/Marketing | Sold | $152.6k1.6k shares |
| 2023-05-17 | Yu Gary COO | Sold | $92.0k1.0k shares |
| 2023-05-16 | Yu Gary COO | Sold | $180.4k2.0k 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. 0.02% of their portfolio | 7.0m $648.0m | Added +40.3k |
| VANGUARD GROUP INC 0.01% of their portfolio | 5.5m $506.8m | Added +128.6k |
| EARNEST PARTNERS LLC 1.08% of their portfolio | 2.1m $193.0m | Reduced -530.0k |
| STATE STREET CORP 0.01% of their portfolio | 2.0m $187.3m | Added +42.3k |
| LSV ASSET MANAGEMENT 0.38% of their portfolio | 1.9m $172.4m | Reduced -16.6k |
| DIMENSIONAL FUND ADVISORS LP 0.05% of their portfolio | 1.7m $158.9m | Reduced -167.5k |
| Invesco Ltd. 0.04% of their portfolio | 1.6m $146.2m | Added +66.5k |
| CONGRESS ASSET MANAGEMENT CO 1.06% of their portfolio | 1.3m $122.0m | Reduced -22.7k |
| BANK OF AMERICA CORP /DE/ 0.01% of their portfolio | 1.3m $118.1m | Reduced -298.9k |
| MACQUARIE GROUP LTD 0.10% of their portfolio | 972.6k $90.0m | Reduced -34.1k |
| LORD, ABBETT & CO. LLC 0.15% of their portfolio | 930.1k $86.0m | Reduced -494.4k |
| GEODE CAPITAL MANAGEMENT, LLC 0.01% of their portfolio | 914.7k $84.6m | Added +35.4k |
| FMR LLC 0.01% of their portfolio | 800.0k $74.0m | Reduced -292.8k |
| FULLER & THALER ASSET MANAGEMENT, INC. 0.39% of their portfolio | 739.7k $68.4m | Reduced -156.3k |
| Channing Capital Management, LLC 2.03% of their portfolio | 713.9k $66.0m | Reduced -26.0k |
| NORTHERN TRUST CORP 0.01% of their portfolio | 583.5k $54.0m | Added +8.8k |
| VICTORY CAPITAL MANAGEMENT INC 0.06% of their portfolio | 561.0k $51.9m | Reduced -11.6k |
| BARROW HANLEY MEWHINNEY & STRAUSS LLC 0.19% of their portfolio | 552.4k $51.1m | Added +4.4k |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.01% of their portfolio | 549.8k $50.9m | Added +4.5k |
| AMERICAN CENTURY COMPANIES INC 0.04% of their portfolio | 549.3k $50.8m | Added +47.1k |
| AMERIPRISE FINANCIAL INC 0.02% of their portfolio | 547.0k $50.6m | Reduced -13.9k |
| SEI INVESTMENTS CO 0.09% of their portfolio | 528.9k $48.9m | Reduced -139.4k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.01% of their portfolio | 495.4k $45.8m | Reduced -1.9k |
| Bank of New York Mellon Corp 0.01% of their portfolio | 482.1k $44.6m | Reduced -16.3k |
| ROYAL BANK OF CANADA 0.01% of their portfolio | 480.0k $44.4m | Added +6.9k |
| MORGAN STANLEY 0.00% of their portfolio | 439.4k $40.6m | Added +24.8k |
| NORGES BANK 0.01% of their portfolio | 424.9k $39.3m | Added +9.3k |
| Allspring Global Investments Holdings, LLC 0.05% of their portfolio | 360.6k $33.4m | Added +52.9k |
| JANUS HENDERSON GROUP PLC 0.02% of their portfolio | 295.6k $27.3m | Added +11.8k |
| GOLDMAN SACHS GROUP INC 0.01% of their portfolio | 293.1k $27.1m | Added +26.2k |
| PRINCIPAL FINANCIAL GROUP INC 0.02% of their portfolio | 264.6k $24.5m | Reduced -15.0k |
| Nuveen Asset Management, LLC 0.01% of their portfolio | 260.1k $24.1m | Added +19.4k |
| ADAGE CAPITAL PARTNERS GP, L.L.C. 0.05% of their portfolio | 249.2k $23.0m | Added +47.2k |
| FIRST TRUST ADVISORS LP 0.02% of their portfolio | 234.4k $21.7m | Added +2.1k |
| GLENMEDE TRUST CO NA 0.12% of their portfolio | 225.3k $20.9m | Added +400 |
| Fisher Asset Management, LLC 0.01% of their portfolio | 220.8k $20.4m | Added +3 |
| ENVESTNET ASSET MANAGEMENT INC 0.01% of their portfolio | 191.1k $17.7m | Reduced -474.1k |
| Tributary Capital Management, LLC 1.57% of their portfolio | 189.8k $17.6m | Reduced -40.8k |
| NEW YORK STATE COMMON RETIREMENT FUND 0.02% of their portfolio | 171.7k $15.9m | Reduced -246.6k |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 163.9k $15.2m | Added +3.7k |
| HANTZ FINANCIAL SERVICES, INC. 0.33% of their portfolio | 141.3k $13.1m | Added +2.7k |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 135.2k $12.5m | Added +2.4k |
| RHUMBLINE ADVISERS 0.01% of their portfolio | 131.5k $12.2m | Reduced -1.4k |
| Legal & General Group Plc 0.00% of their portfolio | 131.2k $12.1m | Reduced -2.2k |
| CW Advisors, LLC 0.28% of their portfolio | 130.0k $12.0m | Reduced -1.3k |
| Hodges Capital Management Inc. 0.01% of their portfolio | 126.8k $16.6k | Added +36.2k |
| GREAT LAKES ADVISORS, LLC 0.11% of their portfolio | 116.0k $10.7m | Added +36.7k |
| Janney Montgomery Scott LLC 0.03% of their portfolio | 105.6k $9.8m | Added +8.2k |
| BESSEMER GROUP INC 0.02% of their portfolio | 103.7k $9.6m | Added +103.6k |
| CHARTWELL INVESTMENT PARTNERS, LLC 0.34% of their portfolio | 103.0k $9.5m | Reduced -2.8k |
| California Public Employees Retirement System 0.01% of their portfolio | 101.5k $9.4m | Added +996 |
| NATIXIS ADVISORS, LLC 0.03% of their portfolio | 100.0k $9.2m | Reduced -4.9k |
| Swiss National Bank 0.01% of their portfolio | 99.5k $9.2m | Added +1.4k |
| MILLENNIUM MANAGEMENT LLC 0.01% of their portfolio | 96.2k $8.9m | Added +88.3k |
| WEDGE CAPITAL MANAGEMENT L L P/NC 0.14% of their portfolio | 96.1k $8.9m | Added +1.6k |
| NEW YORK STATE TEACHERS RETIREMENT SYSTEM 0.02% of their portfolio | 94.1k $8.7m | Reduced -200 |
| Qube Research & Technologies Ltd 0.03% of their portfolio | 89.2k $8.3m | Added +48.8k |
| LPL Financial LLC 0.01% of their portfolio | 87.6k $8.1m | Added +6.6k |
| Public Sector Pension Investment Board 0.05% of their portfolio | 81.2k $7.5m | Added +1.2k |
| PRUDENTIAL FINANCIAL INC 0.01% of their portfolio | 77.5k $7.2m | Added +8.2k |
| HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC 0.03% of their portfolio | 77.5k $7.2m | Reduced -73.1k |
| ROYCE & ASSOCIATES LP 0.07% of their portfolio | 76.7k $7.1m | Unchanged |
| UBS Group AG 0.00% of their portfolio | 74.9k $6.9m | Added +48.1k |
| Homestead Advisers Corp 0.17% of their portfolio | 68.7k $6.4m | Unchanged |
| First Eagle Investment Management, LLC 0.02% of their portfolio | 66.7k $6.2m | Added +22.5k |
| RENAISSANCE TECHNOLOGIES LLC 0.01% of their portfolio | 63.9k $5.9m | Added +29.3k |
| ALLIANCEBERNSTEIN L.P. 0.00% of their portfolio | 58.4k $5.4m | Added +631 |
| Cubist Systematic Strategies, LLC 0.06% of their portfolio | 55.8k $5.2m | Added +29.9k |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.01% of their portfolio | 55.3k $5.1m | Reduced -1.3k |
| OAK ASSOCIATES LTD /OH/ 0.40% of their portfolio | 54.5k $5.0m | Unchanged |
| RBA Wealth Management, LLC 2.29% of their portfolio | 53.1k $4.9m | Added +492 |
| US BANCORP \DE\ 0.01% of their portfolio | 52.7k $4.9m | Reduced -4.7k |
| COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS 0.04% of their portfolio | 51.7k $4.8m | Added +3.5k |
| KENNEDY CAPITAL MANAGEMENT LLC 0.11% of their portfolio | 50.9k $4.7m | Reduced -95 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% of their portfolio | 47.3k $4.4m | Unchanged |
| Cerity Partners LLC 0.02% of their portfolio | 46.0k $4.3m | New |
| COMERICA BANK 0.00% of their portfolio | 45.4k $3 | First filing |
| Man Group plc 0.01% of their portfolio | 44.9k $4.2m | New |
| Balyasny Asset Management L.P. 0.01% of their portfolio | 44.8k $4.1m | Added +8.7k |
| CREDIT SUISSE AG/ 0.00% of their portfolio | 44.6k $4.1m | Added +4.7k |
| AQR CAPITAL MANAGEMENT LLC 0.01% of their portfolio | 44.3k $4.1m | Added +22.0k |
| Thrivent Financial for Lutherans 0.01% of their portfolio | 43.7k $4.0m | Reduced -1.3k |
| STATE OF WISCONSIN INVESTMENT BOARD 0.01% of their portfolio | 42.0k $3.9m | Reduced -2.1k |
| NFJ INVESTMENT GROUP, LLC 0.10% of their portfolio | 42.0k $3.9m | Reduced -8.8k |
| Russell Investments Group, Ltd. 0.01% of their portfolio | 40.9k $3.8m | Reduced -38.6k |
| CITIGROUP INC 0.00% of their portfolio | 40.5k $3.7m | Added +13.3k |
| TEXAS PERMANENT SCHOOL FUND CORP 0.03% of their portfolio | 40.3k $3.7m | Reduced -537 |
| CANADA LIFE ASSURANCE Co 0.01% of their portfolio | 40.0k $3.7m | Reduced -3.2k |
| MARTINGALE ASSET MANAGEMENT L P 0.07% of their portfolio | 38.0k $3.5m | Added +995 |
| Centric Wealth Management 1.30% of their portfolio | 36.6k $3.3m | Added +670 |
| CITADEL ADVISORS LLC 0.00% of their portfolio | 36.6k $3.4m | Reduced -61.4k |
| OPPENHEIMER ASSET MANAGEMENT INC. 0.05% of their portfolio | 36.4k $3.4m | Added +62 |
| BURNEY CO/ 0.14% of their portfolio | 33.9k $3.1m | Reduced -179 |
| TOWNSQUARE CAPITAL LLC 0.06% of their portfolio | 33.4k $3.1m | Added +3.5k |
| Bridge City Capital, LLC 1.45% of their portfolio | 33.0k $3.1m | Added +21 |
| BNP PARIBAS FINANCIAL MARKETS 0.01% of their portfolio | 32.0k $3.0m | Added +622 |
| SEGALL BRYANT & HAMILL, LLC 0.03% of their portfolio | 31.7k $2.9m | Added +40 |
| State of Alaska, Department of Revenue 0.03% of their portfolio | 30.1k $2.8m | Reduced -1.1k |
| Moran Wealth Management, LLC 0.10% of their portfolio | 29.7k $2.7m | Added +822 |
| OCCUDO QUANTITATIVE STRATEGIES LP 0.27% of their portfolio | 28.5k $2.6m | New |