Diodes Incorporated (DIOD) Ownership
DIOD ownership summary
as of October 18, 2026- Institutions
- 102.8% of shares outstanding
- Insiders
- 2.56% of shares outstanding
- Shares outstanding
- 46.1M
- Float
- 45.1M shares available to trade
- Short interest
- 9.33% 2.5M shares short
- Days to cover
- 4.88 short interest up 6.1% vs prior month
- Institutions 102.76%
- Insiders 2.56%
DIOD top institutional holders
20 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | BlackRock Inc | 15.95% | 7.3M | $608.6M | +147,184 (+2.0%) | June 30, 2026 |
| 2 | FMR Inc | 9.51% | 4.4M | $362.9M | −1.3M (−23.0%) | June 30, 2026 |
| 3 | Vanguard Portfolio Management, LLC | 8.13% | 3.7M | $310.1M | +103,406 (+2.8%) | June 30, 2026 |
| 4 | State Street Corp | 5.66% | 2.6M | $215.8M | +323,198 (+14.2%) | June 30, 2026 |
| 5 | Dimensional Fund Advisors, Inc. | 4.78% | 2.2M | $182.3M | −235,853 (−9.7%) | June 30, 2026 |
| 6 | Vanguard Capital Management, LLC | 4.33% | 2.0M | $165.2M | +12,290 (+0.6%) | June 30, 2026 |
| 7 | William Blair Investment Management, LLC | 3.65% | 1.7M | $139.4M | +1.2M (+281.1%) | June 30, 2026 |
| 8 | Geode Capital Management, LLC | 3.58% | 1.6M | $136.5M | +210,970 (+14.7%) | June 30, 2026 |
| 9 | Morgan Stanley - Brokerage Accounts | 2.27% | 1.0M | $86.6M | −618,845 (−37.2%) | June 30, 2026 |
| 10 | T. Rowe Price Associates, Inc. | 2.12% | 976K | $80.9M | +923,017 (+1,738.5%) | June 30, 2026 |
| 11 | Earnest Partners LLC | 2.09% | 965K | $79.9M | −36,840 (−3.7%) | June 30, 2026 |
| 12 | Amvescap Plc. | 1.93% | 889K | $73.7M | +60,803 (+7.3%) | June 30, 2026 |
| 13 | American Century Companies Inc | 1.75% | 807K | $66.9M | +687,921 (+578.3%) | June 30, 2026 |
| 14 | Charles Schwab Investment Management Inc | 1.58% | 729K | $60.4M | −43,453 (−5.6%) | June 30, 2026 |
| 15 | Global Alpha Capital Management Ltd. | 1.26% | 579K | $48.0M | −258,655 (−30.9%) | June 30, 2026 |
| 16 | Northern Trust Corp | 1.25% | 575K | $47.6M | +32,350 (+6.0%) | June 30, 2026 |
| 17 | Victory Capital Management Inc. | 1.10% | 508K | $42.1M | −284,042 (−35.9%) | June 30, 2026 |
| 18 | Delaware Management Holdings Inc | 1.04% | 481K | $39.8M | −101,447 (−17.4%) | June 30, 2026 |
| 19 | Bessemer Group Inc | 1.00% | 461K | $38.2M | +16,203 (+3.6%) | June 30, 2026 |
| 20 | Fuller & Thaler Asset Management Inc | 0.96% | 444K | $36.8M | +15,546 (+3.6%) | June 30, 2026 |
Value at the latest close. Change = shares bought or sold in the latest quarterly filing (13F). In the top 20, 12 holders added 3.8M shares and 8 cut 2.9M.
DIOD top mutual fund and ETF holders
20 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | iShares Core S&P Small-Cap ETF | 5.96% | 2.7M | $227.2M | +603 (+0.0%) | September 30, 2026 |
| 2 | Vanguard MStar Total Stk Mkt Idx Invest | 3.02% | 1.4M | $115.1M | −2,395 (−0.2%) | August 31, 2026 |
| 3 | iShares Russell 2000 ETF | 2.60% | 1.2M | $99.0M | −13,760 (−1.1%) | September 30, 2026 |
| 4 | Vanguard Information Technology ETF | 2.26% | 1.0M | $86.1M | +2,386 (+0.2%) | September 30, 2026 |
| 5 | Vanguard Small Cap Index | 2.25% | 1.0M | $85.9M | +31,733 (+3.2%) | September 30, 2026 |
| 6 | State Street® SPDR® S&P® Smcndctr ETF | 1.74% | 801K | $66.4M | +3,398 (+0.4%) | September 30, 2026 |
| 7 | Strategic Advisers Fidelity US TtlStk | 1.69% | 780K | $64.6M | −2,120 (−0.3%) | August 31, 2026 |
| 8 | Invesco Semiconductors ETF | 1.64% | 755K | $62.6M | — | September 30, 2026 |
| 9 | Fidelity Low-Priced Stock | 1.45% | 670K | $55.5M | — | July 31, 2026 |
| 10 | Vanguard MStar Small Cap Growth Indx Inv | 1.25% | 577K | $47.8M | −129 (−0.0%) | September 30, 2026 |
| 11 | Fidelity Small Cap Index | 1.09% | 503K | $41.7M | +4,200 (+0.8%) | July 31, 2026 |
| 12 | American Funds SMALLCAP World A | 1.09% | 500K | $41.4M | +500,000 (0.0%) | September 30, 2026 |
| 13 | Harbor Small Cap Value Instl | 0.97% | 449K | $37.2M | +77,506 (+20.9%) | September 30, 2026 |
| 14 | DFA US Small Cap Value I | 0.97% | 446K | $36.9M | +4,262 (+1.0%) | August 31, 2026 |
| 15 | State Street SPDR Port S&P 600 Sm CpETF | 0.91% | 419K | $34.7M | — | September 30, 2026 |
| 16 | Oberweis Micro-Cap | 0.87% | 399K | $33.1M | +184,100 (+85.5%) | June 30, 2026 |
| 17 | iShares S&P Small-Cap 600 Value ETF | 0.85% | 389K | $32.3M | — | September 30, 2026 |
| 18 | CC&L Global Alpha - Series A | 0.76% | 351K | $29.1M | −45,232 (−11.4%) | August 31, 2026 |
| 19 | iShares Russell 2000 Growth ETF | 0.76% | 351K | $29.1M | −444 (−0.1%) | September 30, 2026 |
| 20 | Fidelity Small Cap Discovery | 0.74% | 341K | $28.2M | +31,500 (+10.2%) | July 31, 2026 |
Funds report holdings monthly or quarterly; dates differ by fund.
DIOD insider transactions
latest 8| Date | Name | Transaction | Price | Shares | Value |
|---|---|---|---|---|---|
| 2026-02-20 | Keh Shew Lu | Sell | $67.76 | 111,000 | $7.5M |
| 2026-02-03 | Brett R Whitmire | Sell | $60.85 | 830 | $50,506 |
| 2026-02-03 | Emily Yang | Sell | $60.85 | 950 | $57,808 |
| 2026-02-03 | Gary Yu | Sell | $60.85 | 2,900 | $176,465 |
| 2026-02-02 | Jin Zhao | Sell | $59.19 | 525 | $31,075 |
| 2025-11-12 | Keh Shew Lu | Sell | $47.42 | 6,000 | $284,520 |
| 2025-08-28 | Emily Yang | Sell | $56.36 | 1,000 | $56,360 |
| 2025-08-27 | Brett R Whitmire | Sell | $55.90 | 2,000 | $111,800 |
Reported trades by company officers, directors and other filers (including disclosures by members of Congress where EODHD lists them). "—" where the filing gives no share count.
DIOD shares outstanding
Year-end shares outstanding, adjusted for splits.
Who owns DIOD
Institutional investors own 102.8% of Diodes's shares and insiders 2.56%. The largest holder is BlackRock Inc with 15.95% of the shares (7.3M), as of June 30, 2026. Among the top 20 institutions, 12 added shares and 8 reduced their stake in the latest filings. Short interest is 9.33% of the float, or 4.88 days of average trading volume. The share count fell 5.1% since 2014.
Related: DIOD analyst forecast, DIOD key metrics. See the DIOD stock overview for the latest quote and news.
DIOD ownership FAQ
Who owns the most Diodes stock?
The largest shareholders of Diodes are BlackRock Inc (15.95%), FMR Inc (9.51%), Vanguard Portfolio Management, LLC (8.13%), State Street Corp (5.66%), Dimensional Fund Advisors, Inc. (4.78%).
What percentage of Diodes is owned by institutions?
Institutions hold 102.8% of Diodes's shares outstanding; insiders hold 2.56%.
Which funds own Diodes?
The largest fund holders of Diodes are iShares Core S&P Small-Cap ETF (5.96%), Vanguard MStar Total Stk Mkt Idx Invest (3.02%), iShares Russell 2000 ETF (2.60%), Vanguard Information Technology ETF (2.26%), Vanguard Small Cap Index (2.25%).
What is Diodes's short interest?
2.5M shares of Diodes were sold short, 9.33% of the float; at the average daily volume it would take 4.88 days to cover.
Are insiders buying or selling Diodes?
Of the latest 8 reported insider transactions in Diodes (since August 27, 2025), 0 were purchases and 8 were sales.
How many shares of Diodes are outstanding?
Diodes has 46.1M shares outstanding, of which 45.1M are in the public float.