ASX · ASE Technology Holding Co., Ltd. · Holdings
Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.
Institutional Ownership Trend
Superinvestors Holding ASX
All superinvestors →Holder Concentration
Across 491 13F filersWho Holds ASX
Last 8 quarters through Sep 30, 2026 (filing window open)Each kind of 13F filer's share of the common shares 13F filers report. Holder type comes from regulatory records, never the filer's name; style, turnover and horizon are measured from each filer's own 13F book. The quarter selector does not change this card.
Jun 30, 2026, the newest closed quarter: 487 filers, like-for-like change -2.6%; actively managed books -9.3%; index-like books +15.1%.
| Holder type | Share | Filers | Change |
|---|---|---|---|
| Registered adviser | 23.0% | 288 | -7.0% |
| Exempt adviser | 0.2% | 4 | -88.2% |
| Adviser | 8.3% | 12 | -31.8% |
| Bank | 22.0% | 26 | +15.4% |
| Insurer | 0.0% | 1 | -35.0% |
| Broker-dealer | 0.4% | 2 | +70.8% |
| Benefit plan | 0.0% | 1 | new |
| Non-US | 1.3% | 9 | -18.4% |
| Holding company | 27.6% | 10 | +15.5% |
| Unknown | 17.2% | 134 | -10.2% |
| Style | Share | Filers | Change |
|---|---|---|---|
| Index-like | 32.5% | 23 | +15.1% |
| Systematic-like | 1.4% | 16 | -58.3% |
| Concentrated | 4.5% | 122 | +11.8% |
| Diversified active | 61.6% | 326 | -8.1% |
| Not measured | 0.0% | 0 | — |
| Unknown | 0.0% | 0 | — |
| Turnover | Share | Filers | Change |
|---|---|---|---|
| Low turnover | 63.2% | 305 | +9.8% |
| Medium turnover | 32.4% | 93 | -8.5% |
| High turnover | 3.0% | 44 | -63.1% |
| Unknown | 1.4% | 45 | -11.5% |
| Not measured | 0.0% | 0 | — |
| Holding horizon | Share | Filers | Change |
|---|---|---|---|
| Short horizon | 1.9% | 56 | -32.6% |
| Medium horizon | 22.6% | 90 | +30.6% |
| Long horizon | 74.1% | 316 | -6.7% |
| Unknown | 1.4% | 25 | -56.1% |
| Not measured | 0.0% | 0 | — |
| 13F book size | Share | Filers | Change |
|---|---|---|---|
| Under $1B | 2.7% | 130 | +22.6% |
| $1B to $10B | 4.7% | 176 | -2.2% |
| $10B to $100B | 26.4% | 117 | -15.0% |
| $100B or more | 66.2% | 64 | +2.5% |
| Not measured | 0.0% | 0 | — |
| Client base | Share | Filers | Change |
|---|---|---|---|
| Individuals and high net worth | 9.8% | 206 | -10.6% |
| Pooled investment vehicles | 3.2% | 25 | -43.6% |
| Registered funds and BDCs | 6.7% | 22 | +27.5% |
| Pension and profit sharing plans | 0.0% | 5 | +127.7% |
| Insurance companies | 0.1% | 1 | new |
| Charitable organizations | 0.0% | 3 | -45.4% |
| Governments and sovereign funds | 0.3% | 5 | +2.9% |
| Corporations | 0.0% | 1 | -9.2% |
| Other investment advisers | 0.6% | 5 | -0.6% |
| Other | 0.1% | 1 | +10.3% |
| Diversified | 2.3% | 13 | +17.8% |
| Unknown | 77.0% | 200 | -1.1% |
| Private funds | Share | Filers | Change |
|---|---|---|---|
| Hedge funds | 5.0% | 38 | -51.7% |
| Private equity funds | 1.9% | 19 | +3.5% |
| Venture capital funds | 0.0% | 1 | 0.0% |
| Real estate funds | 0.1% | 6 | +9.7% |
| Liquidity funds | 0.0% | 1 | new |
| Securitized asset funds | 0.0% | 1 | 0.0% |
| Other private funds | 4.5% | 30 | +26.0% |
| Mixed private funds | 0.0% | 2 | +4283.1% |
| Private funds, type not stated | 0.2% | 9 | +10.7% |
| No private funds | 11.5% | 184 | +10.2% |
| Unknown | 76.8% | 196 | +0.9% |
| Location | Share | Filers | Change |
|---|---|---|---|
| United States | 81.2% | 409 | -4.1% |
| Outside the US | 18.8% | 77 | +4.8% |
| Unknown | 0.0% | 1 | — |
The Sep 30, 2026 filing window is still open, so its bar carries the Jun 30, 2026 positions of filers that have not filed yet.
How the mix is measured
Shares are 13F common shares restated to today's split basis; options and principal amounts are left out. The change compares only filers with a 13F in both quarters and keeps each filer in its bucket of the later quarter on both sides; a filer that continues under a new CIK is compared through its successor. Holder type comes from each filer's current regulatory profile; client base and private funds come from the Form ADV roster current at each quarter end (rosters from December 2019, so an earlier quarter reads Unknown). Style, turnover, horizon and book size are measured from each filer's 13F book in the newest measured quarter, and Not measured means none was. Actively managed books are those measured systematic-like, concentrated or diversified active.
Excluded 7 holders with no observed 2026-03-31 13F and 7 holders with no observed 2026-06-30 13F.
Conviction and Crowding
487 13F filers, quarter ended Jun 30, 2026Measured across every 13F filer's common-share book once the quarter's filing window closed. Crowding counts filers with high turnover or that advise private funds on Form ADV.
Managers in the top fifth by current three-year FundScore alpha were net buyers of $0 (0 buying, 0 selling).
Estimated Holder Cost Basis
Quarter ended Jun 30, 2026, on that quarter's share basisEstimated, never filed: each 13F buy is costed at its quarter's average traded price and each sale keeps the average cost, so this is what holders paid on average if they traded evenly through each quarter.
Estimated cost covers 37.4% of the 13F shares; positions already held when a filer's 13F history starts, or bought in a quarter without a trusted average price, have no estimate.
Shared Holders
Companies ASX's active holders also own, quarter ended Jun 30, 2026| # | Company | Shared holders |
|---|---|---|
| 1 | UMC United Microelectronics Corp | 32 |
| 2 | KB KB Financial Group Inc. | 25 |
| 3 | WF Woori Financial Group Inc. | 12 |
| 4 | SHG Shinhan Financial Group Co Ltd | 15 |
| 5 | CHT Chunghwa Telecom Co Ltd | 7 |
| 6 | PKX Posco Holdings Inc. | 6 |
| 7 | IBN Icici Bank Ltd | 19 |
| 8 | HSBC Hsbc Holdings PLC | 24 |
| 9 | SAN Banco Santander, S.A. | 20 |
| 10 | SSL Sasol Ltd | 6 |
Shareholder Targets
13F filers that own its peers but not ASX, quarter ended Jun 30, 2026Found through its holder-overlap peers: UMC, KB, WF, SHG, CHT, PKX, IBN, HSBC, SAN, SSL, MUFG, TSM, BCS, UBS, NVS, SMFG, SKM, KT, WDC, LRCX. 4,427 filers in all.
| # | Filer | In peers | Largest peers |
|---|---|---|---|
| 1 | STATE STREET CORP Bank, Index-like | $37,587,736,571 16 held | LRCX, WDC, TSM |
| 2 | Capital World Investors Adviser, Diversified active | $27,879,327,631 9 held | TSM, WDC, UBS |
| 3 | NORGES BANK Non-US, Index-like | $15,878,366,086 6 held | LRCX, UBS, WDC |
| 4 | VAN ECK ASSOCIATES CORP Registered adviser, Index-like | $13,185,666,512 8 held | TSM, LRCX, NVS |
| 5 | Sanders Capital, LLC Registered adviser, Concentrated | $12,745,912,214 3 held | TSM, HSBC, SHG |
| 6 | Jupiter Topco LLC Unknown, Diversified active | $8,859,042,785 7 held | LRCX, TSM, UBS |
| 7 | COATUE MANAGEMENT LLC Registered adviser, Concentrated | $8,348,863,982 2 held | TSM, LRCX |
| 8 | ARROWSTREET CAPITAL, LIMITED PARTNERSHIP Registered adviser, Diversified active | $7,878,069,363 13 held | LRCX, TSM, UBS |
| 9 | Capital Research Global Investors Adviser, Diversified active | $7,676,961,734 8 held | TSM, WDC, LRCX |
| 10 | WELLINGTON MANAGEMENT GROUP LLP Holding company, Diversified active | $7,652,619,301 11 held | TSM, UBS, WDC |
Fund Ownership of ASX by Fund Type
Registered funds' Form N-PORT reports for the quarter ended Jun 30, 2026Index funds and index ETFs hold 0.75% of shares outstanding.
| Fund type | Of shares outstanding | Shares |
|---|---|---|
| Index funds | 0.02% | 331,829 |
| Index ETFs | 0.73% | 16,124,929 |
| Active ETFs | 0.09% | 1,965,597 |
| Active funds | 0.06% | 1,386,143 |
| Unclassified | 0.28% | 6,178,884 |
| All registered funds | 1.18% | 25,987,382 |
How fund types are measured
Each fund series counts once, with its latest Form N-PORT report dated inside the quarter; only long share positions count, restated to today's split basis. The fund type is the series' latest Form N-CEN answer on or before the quarter end (the index-fund box and the exchange-traded flag), never its name. Unclassified funds have no usable N-CEN; unit investment trusts are among them, so index ownership is a floor. Funds sit inside their advisers' 13F reports, so these shares overlap the 13F figures and are never added to them.
| Holder | Value (USD) | % of 13F | Shares | Type | Filed | Open |
|---|---|---|---|---|---|---|
| Mega BlackRock, Inc. Holding company | $1,184,626,138 | 16.30% | 26,255,012 | Shares | 2026-08-07 | |
| Mega BANK OF AMERICA CORP /DE/ Bank | $423,564,178 | 5.83% | 9,387,504 | Shares | 2026-08-14 | |
| Mega GOLDMAN SACHS GROUP INC Holding company | $374,510,437 | 5.15% | 8,300,320 | Shares | 2026-08-14 | |
| Large LAZARD ASSET MANAGEMENT LLC Adviser | $359,616,551 | 4.95% | 7,970,225 | Shares | 2026-08-14 | |
| Mega UBS Group AG Bank | $351,356,204 | 4.83% | 7,787,150 | Shares | 2026-08-13 | |
| Mega MORGAN STANLEY Holding company | $261,528,872 | 3.60% | 5,796,296 | Shares | 2026-08-13 | |
| Large Rafferty Asset Management, LLC Registered adviser | $249,123,221 | 3.43% | 5,521,348 | Shares | 2026-08-14 | |
| Mega AMERICAN CENTURY COMPANIES INC | $240,615,484 | 3.31% | 5,332,790 | Shares | 2026-08-12 | |
| Mega JPMORGAN CHASE & CO Bank | $239,577,541 | 3.30% | 5,309,786 | Shares | 2026-08-12 | |
| Large ACADIAN ASSET MANAGEMENT LLC | $221,849,715 | 3.05% | 4,916,882 | Shares | 2026-08-13 | |
| Mega Fisher Asset Management, LLC Adviser | $198,631,821 | 2.73% | 4,402,301 | Shares | 2026-08-04 | |
| Mega CITIGROUP INC Bank | $192,301,439 | 2.65% | 4,262,000 | Shares | 2026-08-03 | |
| Large Man Group plc | $174,003,204 | 2.39% | 3,856,454 | Shares | 2026-08-14 | |
| Mega BARCLAYS PLC Bank | $157,463,385 | 2.17% | 3,489,880 | Shares | 2026-08-14 | |
| Large Cullen Capital Management, LLC Registered adviser | $94,336,354 | 1.30% | 2,090,788 | Shares | 2026-08-13 | |
| Mega Creative Planning Registered adviser | $90,194,608 | 1.24% | 1,998,994 | Shares | 2026-08-13 | |
| Mega DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main | $81,079,151 | 1.12% | 1,796,967 | Shares | 2026-08-14 | |
| Mega JANE STREET GROUP, LLC | $79,636,800 | 1.10% | 1,765,000 | Call | 2026-08-14 | |
| Mega DIMENSIONAL FUND ADVISORS LP Registered adviser | $71,649,792 | 0.99% | 1,587,983 | Shares | 2026-08-11 | |
| Mid Carrhae Capital LLP Registered adviser | $65,119,539 | 0.90% | 1,464,677 | Shares | 2026-10-20 | |
| Large EARNEST PARTNERS LLC Registered adviser | $64,741,334 | 0.89% | 1,434,870 | Shares | 2026-08-13 | |
| Mega ENVESTNET ASSET MANAGEMENT INC Registered adviser | $63,727,442 | 0.88% | 1,412,399 | Shares | 2026-09-23 | |
| Large NATIXIS ADVISORS, LLC Registered adviser | $58,920,673 | 0.81% | 1,305,866 | Shares | 2026-08-14 | |
| Mega MILLENNIUM MANAGEMENT LLC Registered adviser | $56,645,001 | 0.78% | 1,255,430 | Shares | 2026-08-14 | |
| Mega NORTHERN TRUST CORP Bank | $56,220,963 | 0.77% | 1,246,032 | Shares | 2026-08-13 | |
| Mega JONES FINANCIAL COMPANIES LLLP | $54,217,635 | 0.75% | 1,201,632 | Shares | 2026-08-14 | |
| Large Connor, Clark & Lunn Investment Management Ltd. Registered adviser | $54,126,764 | 0.74% | 1,199,618 | Shares | 2026-08-13 | |
| Mega SCHRODER INVESTMENT MANAGEMENT GROUP Registered adviser | $52,001,520 | 0.72% | 1,152,516 | Shares | 2026-08-13 | |
| Large MACKENZIE FINANCIAL CORP Registered adviser | $51,519,820 | 0.71% | 1,141,840 | Shares | 2026-08-13 | |
| Large Tidal Investments LLC Registered adviser | $48,670,944 | 0.67% | 1,078,700 | Call | 2026-08-13 | |
| Large Tidal Investments LLC Registered adviser | $48,123,773 | 0.66% | 1,066,573 | Shares | 2026-08-13 | |
| Small TT International Asset Management LTD Registered adviser | $40,960,522 | 0.56% | 907,813 | Shares | 2026-07-07 | |
| Mega WELLS FARGO & COMPANY/MN Bank | $40,502,417 | 0.56% | 897,660 | Shares | 2026-08-14 | |
| Mega JANE STREET GROUP, LLC | $39,051,360 | 0.54% | 865,500 | Put | 2026-08-14 | |
| Mega BNP PARIBAS ARBITRAGE, SA Non-US | $36,443,965 | 0.50% | 807,712 | Shares | 2026-08-13 | |
| Mega VANGUARD PORTFOLIO MANAGEMENT LLC Registered adviser | $34,971,835 | 0.48% | 775,085 | Shares | 2026-08-13 | |
| Small Ovata Capital Management Ltd | $32,894,600 | 0.45% | 729,047 | Shares | 2026-07-30 | |
| Mega SEI INVESTMENTS CO Holding company | $31,422,289 | 0.43% | 696,416 | Shares | 2026-08-14 | |
| Large Ninety One UK Ltd Registered adviser | $30,623,025 | 0.42% | 688,777 | Shares | 2026-10-15 | |
| Large Quantinno Capital Management LP Registered adviser | $30,596,052 | 0.42% | 678,104 | Shares | 2026-08-13 | |
| Large Capital Wealth Planning, LLC Registered adviser | $29,126,313 | 0.40% | 645,530 | Shares | 2026-08-14 | |
| Large O'SHAUGHNESSY ASSET MANAGEMENT, LLC Registered adviser | $28,938,840 | 0.40% | 641,375 | Shares | 2026-08-13 | |
| Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP | $28,015,549 | 0.39% | 620,912 | Shares | 2026-08-14 | |
| Large NOMURA HOLDINGS INC Holding company | $22,684,125 | 0.31% | 502,751 | Shares | 2026-08-14 | |
| Mid Ninety One North America, Inc. Registered adviser | $22,155,796 | 0.30% | 498,331 | Shares | 2026-10-15 | |
| Mega HSBC HOLDINGS PLC | $20,798,919 | 0.29% | 460,969 | Shares | 2026-08-14 | |
| Mega ROYAL BANK OF CANADA Bank | $20,520,347 | 0.28% | 454,795 | Shares | 2026-08-14 | |
| Large Vident Advisory, LLC Registered adviser | $20,143,056 | 0.28% | 446,433 | Shares | 2026-08-12 | |
| Mega LPL Financial LLC Broker-dealer | $19,876,803 | 0.27% | 440,532 | Shares | 2026-08-07 | |
| Mega NORDEA INVESTMENT MANAGEMENT AB Non-US | $19,065,862 | 0.26% | 422,559 | Shares | 2026-08-05 | |
| Large HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND Non-US | $18,589,440 | 0.26% | 412,000 | Shares | 2026-08-13 | |
| Mega RAYMOND JAMES FINANCIAL INC | $18,021,918 | 0.25% | 399,422 | Shares | 2026-08-14 | |
| Mid Ethic Inc. Registered adviser | $17,902,758 | 0.25% | 396,781 | Shares | 2026-07-29 | |
| Large Vanguard Personalized Indexing Management, LLC Registered adviser | $17,790,951 | 0.24% | 394,303 | Shares | 2026-08-11 | |
| Mega RHUMBLINE ADVISERS Registered adviser | $16,861,975 | 0.23% | 373,714 | Shares | 2026-08-12 | |
| Mid QUADRANT CAPITAL GROUP LLC | $16,732,165 | 0.23% | 376,342 | Shares | 2026-10-20 | |
| Small Ramirez Asset Management, Inc. Registered adviser | $15,723,733 | 0.22% | 348,487 | Shares | 2026-08-13 | |
| Large CAPITAL FUND MANAGEMENT S.A. | $15,653,120 | 0.22% | 346,922 | Shares | 2026-08-13 | |
| Large Verition Fund Management LLC Registered adviser | $14,952,271 | 0.21% | 331,389 | Shares | 2026-08-14 | |
| Large Mirae Asset Global Investments Co., Ltd. | $14,728,702 | 0.20% | 326,434 | Shares | 2026-07-22 | |
| Large Nykredit A/S | $14,246,640 | 0.20% | 315,750 | Shares | 2026-09-08 | |
| Mega CITADEL ADVISORS LLC Registered adviser | $13,766,112 | 0.19% | 305,100 | Call | 2026-09-02 | |
| Mid Laird Norton Wetherby Trust Company, LLC | $13,615,455 | 0.19% | 301,761 | Shares | 2026-08-14 | |
| Mid Larson Financial Group LLC Registered adviser | $13,292,532 | 0.18% | 294,604 | Shares | 2026-08-14 | |
| Mid Moran Wealth Management, LLC Registered adviser | $13,043,496 | 0.18% | 293,376 | Shares | 2026-10-22 | |
| Mega Allianz Asset Management GmbH | $12,713,642 | 0.17% | 281,774 | Shares | 2026-09-02 | |
| Small Dilation Capital Management LP Registered adviser | $12,455,824 | 0.17% | 280,158 | Shares | 2026-10-13 | |
| Large SILVERCREST ASSET MANAGEMENT GROUP LLC Registered adviser | $12,263,480 | 0.17% | 271,797 | Shares | 2026-08-14 | |
| Mega Amundi Holding company | $11,368,073 | 0.16% | 251,952 | Shares | 2026-08-11 | |
| Large US BANCORP \DE\ Bank | $11,113,596 | 0.15% | 246,312 | Shares | 2026-08-12 | |
| Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP | $11,104,032 | 0.15% | 246,100 | Call | 2026-08-14 | |
| Mid OVERSEA-CHINESE BANKING Corp Ltd | $10,978,417 | 0.15% | 243,316 | Shares | 2026-08-11 | |
| Large ABN AMRO INVESTMENT SOLUTIONS | $10,663,775 | 0.15% | 239,851 | Shares | 2026-10-21 | |
| Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP | $10,657,344 | 0.15% | 236,200 | Put | 2026-08-14 | |
| Large GUGGENHEIM CAPITAL LLC | $10,539,715 | 0.15% | 233,593 | Shares | 2026-08-12 | |
| Mega HSBC HOLDINGS PLC | $10,514,367 | 0.14% | 232,818 | Principal | 2026-08-14 | |
| Mid Y-Intercept (Hong Kong) Ltd Exempt adviser | $10,349,220 | 0.14% | 232,776 | Shares | 2026-10-16 | |
| Mega Bank of New York Mellon Corp Bank | $10,250,223 | 0.14% | 227,177 | Shares | 2026-08-06 | |
| Mega Nuveen, LLC | $9,625,630 | 0.13% | 213,334 | Shares | 2026-08-11 | |
| Mid OPPENHEIMER ASSET MANAGEMENT INC. | $9,374,447 | 0.13% | 207,767 | Shares | 2026-08-03 | |
| Small Gunderson Capital Management LLC Registered adviser | $9,304,410 | 0.13% | 209,276 | Shares | 2026-10-15 | |
| Large Mariner, LLC Registered adviser | $9,164,999 | 0.13% | 203,125 | Shares | 2026-08-13 | |
| Mega VANGUARD CAPITAL MANAGEMENT LLC Registered adviser | $8,660,603 | 0.12% | 191,946 | Shares | 2026-08-13 | |
| Large Thrivent Financial for Lutherans Registered adviser | $8,622,115 | 0.12% | 191,093 | Shares | 2026-08-14 | |
| Mega FIRST TRUST ADVISORS LP Registered adviser | $8,619,002 | 0.12% | 191,024 | Shares | 2026-08-11 | |
| Mid Raiffeisen Bank International AG | $8,121,600 | 0.11% | 180,000 | Shares | 2026-08-03 | |
| Large NEW YORK STATE COMMON RETIREMENT FUND | $7,781,801 | 0.11% | 172,469 | Shares | 2026-07-29 | |
| Mid BNP PARIBAS Non-US | $7,405,726 | 0.10% | 164,134 | Shares | 2026-08-13 | |
| Mega NEUBERGER BERMAN GROUP LLC Holding company | $7,388,444 | 0.10% | 163,751 | Shares | 2026-08-13 | |
| Mega TWO SIGMA INVESTMENTS, LP Registered adviser | $7,380,143 | 0.10% | 163,567 | Shares | 2026-08-14 | |
| Large Corient Private Wealth LLC Registered adviser | $7,357,086 | 0.10% | 163,056 | Shares | 2026-08-27 | |
| Mega FMR LLC Holding company | $7,256,694 | 0.10% | 160,831 | Shares | 2026-08-13 | |
| Large IEQ CAPITAL, LLC Registered adviser | $7,200,114 | 0.10% | 159,577 | Shares | 2026-08-11 | |
| Small BAROMETER CAPITAL MANAGEMENT INC. | $7,196,640 | 0.10% | 159,500 | Shares | 2026-08-12 | |
| Small NINE MASTS CAPITAL Ltd Exempt adviser | $7,136,134 | 0.10% | 158,159 | Shares | 2026-08-07 | |
| Large WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC Registered adviser | $6,951,728 | 0.10% | 154,072 | Shares | 2026-08-12 | |
| Large Cerity Partners LLC Registered adviser | $6,847,996 | 0.09% | 151,773 | Shares | 2026-08-14 | |
| Large Orion Porfolio Solutions, LLC | $6,845,335 | 0.09% | 151,714 | Shares | 2026-08-14 | |
| Mid FLPUTNAM INVESTMENT MANAGEMENT CO Registered adviser | $6,669,954 | 0.09% | 147,827 | Shares | 2026-08-06 | |
| Large BANQUE PICTET & CIE SA | $6,516,102 | 0.09% | 146,561 | Shares | 2026-10-16 |
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