ASE Technology Holding Co., Ltd. (ASX) Ownership
ASX ownership summary
as of October 18, 2026- Institutions
- 7.4% of shares outstanding
- Insiders
- 0.00% of shares outstanding
- Shares outstanding
- 2.20B
- Float
- 1.69B shares available to trade
- Short interest
- 0.68% 11.2M shares short
- Days to cover
- 1.67 short interest up 10.0% vs prior month
- Institutions 7.42%
- Insiders 0.00%
- Other investors 92.58%
ASX top institutional holders
20 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | BlackRock Inc | 1.19% | 26.3M | $1.04B | +4.1M (+18.3%) | June 30, 2026 |
| 2 | Bank of America Corp | 0.43% | 9.4M | $371.1M | +2.6M (+37.4%) | June 30, 2026 |
| 3 | The Goldman Sachs Group Inc | 0.38% | 8.3M | $328.1M | +2.5M (+42.0%) | June 30, 2026 |
| 4 | Lazard Asset Management LLC | 0.36% | 8.0M | $315.1M | −5.6M (−41.1%) | June 30, 2026 |
| 5 | UBS Group AG | 0.35% | 7.8M | $307.8M | −1.5M (−16.1%) | June 30, 2026 |
| 6 | Morgan Stanley - Brokerage Accounts | 0.26% | 5.8M | $229.1M | −931,913 (−13.9%) | June 30, 2026 |
| 7 | Rafferty Asset Management, LLC | 0.25% | 5.5M | $218.3M | +1.9M (+54.2%) | June 30, 2026 |
| 8 | American Century Companies Inc | 0.24% | 5.3M | $210.8M | −494,623 (−8.5%) | June 30, 2026 |
| 9 | JPMorgan Chase & Co | 0.24% | 5.3M | $209.9M | +2.7M (+100.6%) | June 30, 2026 |
| 10 | Acadian Asset Management LLC | 0.22% | 4.9M | $194.4M | −2.5M (−33.3%) | June 30, 2026 |
| 11 | Fisher Asset Management, LLC | 0.20% | 4.4M | $174.0M | −402,782 (−8.4%) | June 30, 2026 |
| 12 | Citigroup Inc | 0.19% | 4.3M | $168.5M | +802,371 (+23.2%) | June 30, 2026 |
| 13 | Man Group PLC | 0.18% | 3.9M | $152.4M | +3.5M (+1,000.1%) | June 30, 2026 |
| 14 | Barclays PLC | 0.16% | 3.5M | $138.0M | +118,090 (+3.5%) | June 30, 2026 |
| 15 | Cullen Capital Management, LLC | 0.10% | 2.1M | $82.6M | −1.9M (−47.9%) | June 30, 2026 |
| 16 | Creative Planning Inc | 0.09% | 2.0M | $79.0M | +102,716 (+5.4%) | June 30, 2026 |
| 17 | DZ BANK AG Deutsche Zentral-Genossenschaftsbank Frankfurt am Main | 0.08% | 1.8M | $71.0M | +1,219 (+0.1%) | June 30, 2026 |
| 18 | Dimensional Fund Advisors, Inc. | 0.07% | 1.6M | $62.8M | +188,430 (+13.5%) | June 30, 2026 |
| 19 | Earnest Partners LLC | 0.07% | 1.4M | $56.7M | −292,574 (−16.9%) | June 30, 2026 |
| 20 | Natixis Advisors, LLC. | 0.06% | 1.3M | $51.6M | −634,812 (−32.7%) | June 30, 2026 |
Value at the latest close. Change = shares bought or sold in the latest quarterly filing (13F). In the top 20, 11 holders added 18.4M shares and 9 cut 14.2M.
ASX top mutual fund and ETF holders
20 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | iShares Semiconductor ETF | 0.44% | 9.6M | $379.8M | −96,764 (−1.0%) | September 30, 2026 |
| 2 | Avantis Emerging Markets Equity ETF | 0.17% | 3.7M | $146.6M | — | September 30, 2026 |
| 3 | Direxion Daily Semicondct Bull 3X ETF | 0.15% | 3.3M | $132.3M | −20,216 (−0.6%) | September 30, 2026 |
| 4 | YieldMax Semiconductor Port Opt Inc ETF | 0.06% | 1.2M | $49.2M | +5,019 (+0.4%) | September 30, 2026 |
| 5 | Amplify CWP International Enh Div IncETF | 0.04% | 943K | $37.3M | +2,055 (+0.2%) | September 30, 2026 |
| 6 | RBC Private EAFE Equity Pool F | 0.04% | 850K | $33.6M | +16,403 (+2.0%) | September 30, 2026 |
| 7 | Vanguard Global Minimum Volatility Admr | 0.04% | 775K | $30.6M | −273,371 (−26.1%) | June 30, 2026 |
| 8 | Mackenzie GQE Emerging Markets F | 0.03% | 726K | $28.7M | −20,760 (−2.8%) | July 31, 2026 |
| 9 | TT Emerging Markets Uncons A2 USD Acc | 0.03% | 688K | $27.2M | +141,425 (+25.9%) | August 31, 2026 |
| 10 | Dimensional Emerging Core Equity Mkt ETF | 0.03% | 658K | $26.0M | — | September 30, 2026 |
| 11 | Debeka-Aktien-Asien-ESG C | 0.03% | 649K | $25.7M | — | July 31, 2026 |
| 12 | UniRak ESG A | 0.03% | 601K | $23.8M | −105,315 (−14.9%) | August 31, 2026 |
| 13 | Avantis Emerging Markets Value ETF | 0.03% | 587K | $23.2M | — | September 30, 2026 |
| 14 | CC&L Q Emerging Markets Equity A USD Acc | 0.02% | 536K | $21.2M | +55,011 (+11.4%) | June 30, 2026 |
| 15 | FI Instl Emerging Markets Eq USD | 0.02% | 475K | $18.8M | −45,824 (−8.8%) | August 31, 2026 |
| 16 | MainFirst Global Eq Unconstrained C | 0.02% | 446K | $17.6M | — | August 31, 2026 |
| 17 | Dimensional Emerging Markets Value ETF | 0.02% | 401K | $15.8M | — | September 30, 2026 |
| 18 | BGF Asian Growth Leaders X2 | 0.02% | 373K | $14.7M | +372,607 (0.0%) | June 30, 2026 |
| 19 | Harbor International Core Investor | 0.01% | 303K | $12.0M | −175,592 (−36.7%) | September 30, 2026 |
| 20 | Fidelity Blue Chip Growth | 0.01% | 277K | $10.9M | — | August 31, 2026 |
Funds report holdings monthly or quarterly; dates differ by fund.
ASX shares outstanding
Year-end shares outstanding, adjusted for splits.
Who owns ASX
Institutional investors own 7.4% of ASE Technology's shares and insiders 0.00%. The largest holder is BlackRock Inc with 1.19% of the shares (26.3M), as of June 30, 2026. Among the top 20 institutions, 11 added shares and 9 reduced their stake in the latest filings. Short interest is 0.68% of the float, or 1.67 days of average trading volume. The share count rose 8.9% since 2014.
Related: ASX analyst forecast, ASX key metrics, ASX dividend history. See the ASX stock overview for the latest quote and news.
ASX ownership FAQ
Who owns the most ASE Technology stock?
The largest shareholders of ASE Technology are BlackRock Inc (1.19%), Bank of America Corp (0.43%), The Goldman Sachs Group Inc (0.38%), Lazard Asset Management LLC (0.36%), UBS Group AG (0.35%).
What percentage of ASE Technology is owned by institutions?
Institutions hold 7.4% of ASE Technology's shares outstanding; insiders hold 0.00%.
Which funds own ASE Technology?
The largest fund holders of ASE Technology are iShares Semiconductor ETF (0.44%), Avantis Emerging Markets Equity ETF (0.17%), Direxion Daily Semicondct Bull 3X ETF (0.15%), YieldMax Semiconductor Port Opt Inc ETF (0.06%), Amplify CWP International Enh Div IncETF (0.04%).
What is ASE Technology's short interest?
11.2M shares of ASE Technology were sold short, 0.68% of the float; at the average daily volume it would take 1.67 days to cover.
How many shares of ASE Technology are outstanding?
ASE Technology has 2.20B shares outstanding, of which 1.69B are in the public float.