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ASE Technology Holding Co., Ltd. (ASX) stock

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NYSE: ASX NYSE Semiconductors

C+ Fundamentals grade

ASE Technology Holding Co., Ltd. is a US-listed company in the semiconductors industry. Its financial year ends in December.

Stock price today

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Third-party market data · may be delayed

Fair value per share

Under review: every model's value for ASE Technology Holding Co., Ltd. is far from the share price, which usually points to a data problem (a merger, a share-count change, a one-off) rather than a bargain or a bubble.

Price vs value

Under review: our cash-flow value ($2.94) was left out of our combined valuation (it is 0.07x the share price, outside the 0.2-5x range we accept), so it can't be the basis of a rating. We'll show the comparison once resolved.

ASE Technology Holding Co., Ltd. valuation: adjust assumptions and compare models →

Who’s trading

What company insiders, investment funds and members of Congress have been doing with the stock, from their own filings.

  • Insiders0 buying, 3 selling0 purchases and 39 sales by directors and officers, last 12 monthsInsider trades
  • Funds298 adding, 173 cuttingOf 52 active managers that changed their stake, 25 added; quarter to June 30, 2026Fund buyers and sellers

Value diary

Our note on each quarter ASE Technology Holding files

Where ASE Technology stands after its latest Filing

Revenue for the twelve months was $20.7bn, up 11.8% on a year earlier, against a decline of 0.8% a quarter earlier. Free-cash-flow margin fell to -3.6% from 1.7% a year earlier. Operating margin narrowed to 8.0% from 11.1%. Against its peers on growth, profitability, cash generation and balance sheet, it grades C+. It passes 4 of our 7 financial-health checks.

Our model value for ASE Technology Holding is under review, so past values are not shown until it is resolved.

Written from the company's filings and our models when each quarter's report arrives. Figures in older notes are as published at the time. Not investment advice.

The Fundamentalytics view

ASE Technology Holding Co., Ltd.'s trailing-twelve-month revenue grew 11.8% year on year, with a free-cash-flow margin of -3.6%. Where it stands out: stock pay as % of revenue of 0.4% ranks 8 of 74 semiconductor companies we cover. Where it lags: gross margin of 17.7% ranks 66 of 73 semiconductor companies we cover.

Our discounted-cash-flow model values the business at ~$2.9 per share in the base case (~$1.5–$4.8 across growth scenarios) — model values under stated assumptions, not a price target.

Current signal Results well ahead of expectations: Reported earnings per share beat the analysts' consensus estimate by 43% in the quarter to 2026-06-30, the 3rd beat in the last four quarters.

Assembled from SEC-filed figures — the full workings are on this page and in our methodology. Observations, not recommendations.

Highlights

How we pick these

Strengths

  • Growth speeding up. The growth rate is 12.6 points higher than a quarter earlier.

Things to watch

  • Burning cash. Free cash flow was -3.6% of revenue over the last 12 months.
  • Insiders selling. 3 insiders sold $370M of stock over the past 365 days and none bought (0% under pre-set trading plans).
  • Weak cash conversion. Free cash flow was -59% of net income over the last 12 months.
  • Below peers: gross margin. Gross margin of 17.7% ranks 66 of 73 semiconductor companies we cover (median 48.3%).

Latest results

Earnings per share
$0.29 against an average estimate of $0.20: beat by 43.4%
Next report
October 29, 2026

ASE Technology Holding's figures from its SEC filings and results release; estimates are the analysts' average. Not a recommendation.

Price chart

  • 1 day-0.8%
  • 1 week-1.9%

Closing prices to 2026-11-02. Price change only, dividends excluded.

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Third-party market data · may be delayed

At a glance

Trailing twelve months, from SEC filings

Profitability

Revenue (TTM)
$20.7B
Operating margin
8.0%
Net margin
6.2%
EPS (TTM, diluted)
$0.58

Growth

Revenue growth
+11.8%
Change in growth rate
+12.6 pts
Share count change
+0.9%

Cash

Free cash flow (TTM)
-$752M
FCF margin
-3.6%
Stock pay % of revenue
0.4%

News & updates

Updated November 2, 2026

Company announcements, filed results and changes that matter to shareholders.

  1. Insider trade
  2. Insider trade
  3. Insider trade
  4. Insider trade

Refreshed hourly when new source data is available. Summaries are checked against company releases and SEC filings. Company announcement headlines are labelled when a checked summary is unavailable.

Valuation

ASE Technology Holding Co., Ltd. valuation models and calculator

Fundamentalytics rating

model v1.6 · 2026-11-03

Not rated: held for review: our cash-flow value ($2.94) was left out of our combined valuation (it is 0.07x the share price, outside the 0.2-5x range we accept), so it can't be the basis of a rating.

Our value per share comes from a discounted-cash-flow model of ASE Technology Holding Co., Ltd.'s free cash flow after stock-based pay ( $649M, FY2025 Q4 TTM, with after-tax interest added back): growth for five years as below (the first two years from forecasts, guidance and the company's record), fading to 2.5%, discounted at 8.5%, then cash added and debt and other claims subtracted. These are model values under stated assumptions, not price targets or recommendations.

The inputs used by the models below have passed source checks. Individual model values are available below and in the interactive valuator. Their differences are shown explicitly; the platform combined value and recommendation remain withheld.

Valuation models

We value ASE Technology Holding Co., Ltd. as an operating company, with every model that fits that kind of business. Cost of equity 12.7%: the 10-year Treasury yield (4.9%) plus a beta of 1.72 times a 4.5% equity risk premium.

Value per share by model
Model Value per share In the combined value?
Cash-flow model (DCF) Free cash flow to the firm (after stock pay, with after-tax interest added back), grown then faded to 2.5%, discounted at 8.5% as the firm rate, less debt and other claims. ~$2.9 ~$1.5–$4.8 Left out: out of range vs price (0.08x)
Price-to-earnings vs peers Earnings per share times peers' typical (harmonic-mean) price-to-earnings. ~$4.8 ~$11–$24 Left out: out of range vs price (0.12x)
Residual income Book value plus the present value of returns above the cost of equity, fading over ten years. ~$7.4 ~$5.3–$10 Left out: out of range vs price (0.19x)
Justified price-to-book Book value times (return on equity - growth) / (cost of equity - growth): steady-state returns. ~$6.8 ~$6.2–$7.6 Left out: out of range vs price (0.17x)
Combined value Individual source-checked model scenarios are available. The platform combined value and recommendation remain withheld. — Combined value withheld. Review the individual models and their assumptions.

Different models fail in different ways, so where several apply we average them rather than trust one. Peer-based models compare ASE Technology Holding Co., Ltd. with Semiconductors in our coverage, using third-party market data. Model values are estimates under stated assumptions, updated as new filings arrive; not price targets or investment advice. How each model works.

Moat

Not assessed: fewer than five years of comparable figures in the filings. AI disruption exposure for this industry: Low.

A rules-based reading of reported figures, not a forecast and not investment advice. How the score is built: methodology.

Forecasts and guidance

Analysts' consensus

No analyst estimates are published for ASE Technology Holding Co., Ltd.: too few analysts cover it.

Earnings against estimates

Quarter toEstimateActualSurprise
Jun 2026 $0.20 $0.29 +43.4%
Mar 2026 $0.17 $0.20 +16.3%
Dec 2025 $0.20 $0.21 +6.2%

Adjusted EPS as companies report it, against the average analyst estimate.

Analyst recommendations

2 analysts, Nov 2026
Buy2100%
Hold00%
Sell00%

Monthly trend

  1. Nov 202622
  2. Oct 202611
  3. Sep 202611

Counts of recommendations published by analysts covering ASE Technology Holding Co., Ltd., by month. Source: Aggregated broker recommendations (third-party data). Aggregated counts only: we do not reproduce any firm's recommendation or price target, and these are not Fundamentalytics ratings.

Positioning

Short interest
0.7%
of tradable shares
Days to cover
1.69
at average volume
Short interest, 1 month
−13%
to October 15, 2026
Held by institutions
7%
of shares
Held by insiders
0.0%
of shares
Employees
119,346
full time

Consensus figures average analysts' published estimates (third-party data); guidance is the company's own. Neither is our forecast. Short interest is reported twice a month and lags. Market data may be delayed.

This section is general information, not investment advice or a personal recommendation, and it does not take account of your objectives or circumstances. Forecasts and guidance are estimates, not promises: companies miss their own guidance and analysts' figures are often revised. Prices can fall as well as rise, and you can lose money. See our disclaimer.

Share-price performance

Market data may be delayed

Recent prices are available. Older price history and the statistics that need it are being loaded in the background.

Price behaviour

52-week range
Not enough history
From 52-week high
—
vs 50-day average
—
vs 200-day average
—
Volatility (1 year)
—
Beta vs S&P 500
—

Volatility is the annualised standard deviation of daily returns. Beta 1.5 means the shares typically moved 1.5% for each 1% move in the S&P 500 over the past year. Prices to November 2, 2026.

ASE Technology Holding Co., Ltd. in five measures

Fundamentals grade C+
Growth Profitability Cash Balance sheet

Growth, profitability, cash generation and balance sheet are percentiles against the companies we cover in the same industry, from SEC filings (100 = best). Value compares the share price with our modelled value range (50 = at our base value; higher = cheaper). A description of reported data and our model — not a quality score or advice.

Fundamentals

Revenue (TTM) ASE Technology Holding Co., Ltd.
$5B $10B $15B $20B $25B FY15 Q4 FY17 Q4 FY19 Q4 FY21 Q4 FY23 Q4 FY25 Q4 Revenue (TTM), FY15 Q4: $8.9B Revenue (TTM), FY16 Q4: $8.5B Revenue (TTM), FY17 Q4: $9.6B Revenue (TTM), FY18 Q4: $12.3B Revenue (TTM), FY19 Q4: $13.4B Revenue (TTM), FY20 Q4: $16.2B Revenue (TTM), FY21 Q4: $20.4B Revenue (TTM), FY22 Q4: $22.6B Revenue (TTM), FY23 Q4: $18.7B Revenue (TTM), FY24 Q4: $18.5B Revenue (TTM), FY25 Q4: $20.7B $20.7B

Source: SEC EDGAR filings. Retrieved November 2, 2026.

View chart data
Period Revenue (TTM)
FY15 Q4 $8.9B
FY16 Q4 $8.5B
FY17 Q4 $9.6B
FY18 Q4 $12.3B
FY19 Q4 $13.4B
FY20 Q4 $16.2B
FY21 Q4 $20.4B
FY22 Q4 $22.6B
FY23 Q4 $18.7B
FY24 Q4 $18.5B
FY25 Q4 $20.7B
Revenue growth, TTM YoY ASE Technology Holding Co., Ltd.
-20% 0% 20% 40% FY16 Q4 FY18 Q4 FY20 Q4 FY22 Q4 FY25 Q4 Revenue growth, TTM YoY, FY16 Q4: -4.4% Revenue growth, TTM YoY, FY17 Q4: 12.0% Revenue growth, TTM YoY, FY18 Q4: 29.0% Revenue growth, TTM YoY, FY19 Q4: 8.5% Revenue growth, TTM YoY, FY20 Q4: 21.2% Revenue growth, TTM YoY, FY21 Q4: 25.9% Revenue growth, TTM YoY, FY22 Q4: 10.6% Revenue growth, TTM YoY, FY23 Q4: -17.2% Revenue growth, TTM YoY, FY24 Q4: -0.8% Revenue growth, TTM YoY, FY25 Q4: 11.8% 11.8%

Source: SEC EDGAR filings. Retrieved November 2, 2026.

View chart data
Period Revenue growth, TTM YoY
FY16 Q4 -4.4%
FY17 Q4 12.0%
FY18 Q4 29.0%
FY19 Q4 8.5%
FY20 Q4 21.2%
FY21 Q4 25.9%
FY22 Q4 10.6%
FY23 Q4 -17.2%
FY24 Q4 -0.8%
FY25 Q4 11.8%
Operating margin (TTM) ASE Technology Holding Co., Ltd.
4% 6% 8% 10% 12% 14% FY15 Q4 FY17 Q4 FY19 Q4 FY21 Q4 FY23 Q4 FY25 Q4 Operating margin (TTM), FY15 Q4: 8.7% Operating margin (TTM), FY16 Q4: 9.4% Operating margin (TTM), FY17 Q4: 8.7% Operating margin (TTM), FY18 Q4: 7.3% Operating margin (TTM), FY19 Q4: 5.6% Operating margin (TTM), FY20 Q4: 7.4% Operating margin (TTM), FY21 Q4: 11.1% Operating margin (TTM), FY22 Q4: 12.1% Operating margin (TTM), FY23 Q4: 7.2% Operating margin (TTM), FY24 Q4: 6.8% Operating margin (TTM), FY25 Q4: 8.0% 8.0%

Source: SEC EDGAR filings. Retrieved November 2, 2026.

View chart data
Period Operating margin (TTM)
FY15 Q4 8.7%
FY16 Q4 9.4%
FY17 Q4 8.7%
FY18 Q4 7.3%
FY19 Q4 5.6%
FY20 Q4 7.4%
FY21 Q4 11.1%
FY22 Q4 12.1%
FY23 Q4 7.2%
FY24 Q4 6.8%
FY25 Q4 8.0%
FCF margin (TTM) ASE Technology Holding Co., Ltd.
-5% 0% 5% 10% 15% FY15 Q4 FY17 Q4 FY19 Q4 FY21 Q4 FY23 Q4 FY25 Q4 FCF margin (TTM), FY15 Q4: 9.5% FCF margin (TTM), FY16 Q4: 9.1% FCF margin (TTM), FY17 Q4: 7.7% FCF margin (TTM), FY18 Q4: 2.5% FCF margin (TTM), FY19 Q4: 3.4% FCF margin (TTM), FY20 Q4: 2.5% FCF margin (TTM), FY21 Q4: 1.7% FCF margin (TTM), FY22 Q4: 5.7% FCF margin (TTM), FY23 Q4: 10.3% FCF margin (TTM), FY24 Q4: 1.6% FCF margin (TTM), FY25 Q4: -3.6% -3.6%

Source: SEC EDGAR filings. Retrieved November 2, 2026.

View chart data
Period FCF margin (TTM)
FY15 Q4 9.5%
FY16 Q4 9.1%
FY17 Q4 7.7%
FY18 Q4 2.5%
FY19 Q4 3.4%
FY20 Q4 2.5%
FY21 Q4 1.7%
FY22 Q4 5.7%
FY23 Q4 10.3%
FY24 Q4 1.6%
FY25 Q4 -3.6%

Data: SEC EDGAR XBRL company facts (as filed in 10-K/10-Q); forms 20-F. Generated November 3, 2026. Definitions in our methodology.

Where the money goes

FY2025, from the 10-K

Each dollar ASE Technology Holding took in during FY2025, followed through to profit: what it cost to make, what went on research and running the business, and what was left after tax.

  1. Revenue $20.7B
  2. Cost of revenue $17.1B · 82.3%
  3. Gross profit $3.7B · 17.7%
  4. Research and development $1.1B · 5.1%
  5. Other operating costs $962M · 4.6%
  6. Operating income $1.7B · 8.0%
  7. Income tax $325M · 1.6%
  8. Net income $1.3B · 6.2%

Shares of revenue. Source: ASE Technology Holding's 10-K for FY2025, as filed with the SEC. "Other" lines are what the reported lines leave unexplained.

Financial statements

US$ billions unless shown otherwise. Fiscal years, plus the last twelve months (LTM) when newer.

Fiscal year 2015 Dec 2015 2016 Dec 2016 2017 Dec 2017 2018 Dec 2018 2019 Dec 2019 2020 Dec 2020 2021 Dec 2021 2022 Dec 2022 2023 Dec 2023 2024 Dec 2024 2025 Dec 2025
Income
Revenue 8.9 8.5 9.6 12.3 13.4 16.2 20.4 22.6 18.7 18.5 20.7
Gross profit 1.6 1.7 1.7 2.0 2.1 2.6 4.0 4.5 2.9 3.0 3.7
EBITDA 1.7 1.7 1.8 2.3 2.4 2.9 4.2 4.6 3.2 3.1 3.8
Operating income 0.8 0.8 0.8 0.9 0.8 1.2 2.3 2.7 1.3 1.3 1.7
Net income 0.6 0.7 0.8 0.9 0.6 0.9 2.2 2.1 1.1 1.0 1.3
Diluted EPS $0.31 $0.29 $0.34 $0.40 $0.25 $0.42 $0.97 $0.93 $0.52 $0.45 $0.56
Growth (year on year)
Revenue — −4.4% +12.0% +29.0% +8.5% +21.2% +25.9% +10.6% −17.2% −0.8% +11.8%
EBITDA — +0.6% +4.5% +29.0% +3.1% +23.3% +43.4% +8.9% −30.3% −2.6% +22.4%
Operating income — +3.4% +3.8% +7.7% −16.1% +59.7% +88.6% +20.5% −51.0% −6.1% +31.5%
Net income — +6.4% +13.4% +16.0% −36.6% +65.9% +135.1% −3.9% −44.9% −11.4% +27.5%
Diluted EPS — −7.5% +18.0% +18.0% −37.2% +65.6% +131.3% −4.2% −44.4% −13.1% +25.4%
Margins
Gross margin 17.7% 19.3% 18.2% 16.5% 15.6% 16.3% 19.4% 20.1% 15.8% 16.3% 17.7%
EBITDA margin 19.1% 20.1% 18.8% 18.8% 17.8% 18.2% 20.7% 20.4% 17.1% 16.8% 18.4%
Operating margin 8.7% 9.4% 8.7% 7.3% 5.6% 7.4% 11.1% 12.1% 7.2% 6.8% 8.0%
Net margin 7.0% 7.8% 7.9% 7.1% 4.1% 5.7% 10.6% 9.2% 6.1% 5.4% 6.2%
Free-cash-flow margin 9.6% 9.2% 7.8% 2.6% 3.7% 2.7% 1.9% 5.7% 10.4% 1.9% −3.5%
Cash flow
Cash from operations 1.8 1.6 1.6 1.7 2.3 2.5 2.9 3.7 3.7 2.8 4.6
Capital spending 1.0 0.8 0.8 1.4 1.8 2.1 2.5 2.4 1.7 2.5 5.3
Free cash flow 0.9 0.8 0.7 0.3 0.5 0.4 0.4 1.3 1.9 0.4 −0.7
Stock-based pay — — — 0.0 0.0 0.0 0.0 0.0 0.0 0.1 0.1
Free cash flow after stock pay — — — 0.3 0.5 0.4 0.4 1.3 1.9 0.3 −0.8
Balance sheet
Cash 1.7 1.2 1.6 1.7 2.0 1.8 2.7 1.9 2.2 2.3 2.9
Total debt 0.0 3.4 2.6 6.5 7.2 6.8 7.5 5.9 5.5 5.9 8.1
Net debt (negative = net cash) −1.7 2.2 1.0 4.8 5.2 5.0 4.8 4.0 3.3 3.6 5.1
Diluted shares 2,063m 2,071m 2,092m 2,126m 2,131m 2,144m 2,183m 2,162m 2,174m 2,196m 2,215m
Returned to shareholders
Buybacks 0.2 — — 0.0 — — 0.2 0.0 0.0 0.0 —
Total returned 0.2 — — 0.0 — — 0.2 0.0 0.0 0.0 —

Source: SEC EDGAR XBRL company facts (US and foreign periodic filings); column headings link to the filing. EBITDA is operating income plus depreciation and amortisation. Free cash flow is cash from operations minus capital spending. Growth is left blank when last year's figure was a loss or under 2% of revenue. Share counts and EPS are restated for stock splits. A dash means the company didn't report the figure.

Financial health

4 of 7 checks passed · December 31, 2025
What it owns · $28.4bn
Short-term assets $10.0bnLonger-term assets $18.4bn
What it owes, and who funded it · $27.5bn
Short-term liabilities $7.9bnLonger-term liabilities $8.7bnShareholders' equity $10.9bn
  • Short-term assets cover short-term liabilities $10.0bn of assets due within a year against $7.9bn of liabilities due within a year.
  • Short-term assets cover long-term liabilities $10.0bn short-term assets against $8.7bn of longer-dated liabilities.
  • More cash than debt $2.9bn of cash against $8.1bn of debt.
  • Debt below 40% of shareholders' equity Debt is 74% of equity.
  • Debt burden no higher than five years ago Debt to equity moved from 70% to 74% over five years.
  • A year's operating cash flow covers at least 20% of debt $4.6bn of operating cash flow against $8.1bn of debt.
  • Operating profit covers interest at least five times over Operating income of $1.7bn against $240m of interest.

From ASE Technology Holding Co., Ltd.'s latest balance sheet as filed. Checks are fixed, documented rules (methodology), counted only where the company reports the figures — a dot means the filing doesn't break the item out. Descriptions of reported data, not advice.

Dividends, buybacks and capital spending

FY2024 Q4 TTM
Buybacks (TTM)
$0
Returned to shareholders
0%
of free cash flow
Buybacks, last 3 fiscal years
$6.9M
Diluted share count
+0.9%
year over year
Total shareholder yield
0.0%
dividends 0.0% + buybacks 0.0% of market value
R&D spending
5.1%
of revenue

Competitors: side by side with peers

Closest by revenue in semiconductors
Last 12 months unless stated ASX TXN ADI NXPI STM AMD Median
Revenue, last 12 months $20.7bn $20.8bn $13.9bn $13.8bn $11.8bn $41.3bn $1.1bn
Revenue growth, last 12 months 11.8% 20.3% 33.6% 14.6% −11.1% 39.5% 13.7%
Revenue growth, 3-year average — 4.7% 2.6% 1.6% 13.4% 23.6% 3.9%
Revenue growth, latest quarter — 27.7% 39.6% 19.3% — 50.1% 20.1%
Gross margin 17.7% 60.2% 65.8% 56.4% 33.9% 53.2% 48.3%
Operating margin 8.0% 40.8% 35.5% 33.0% 1.5% 15.7% 4.8%
Operating margin, 3-year average 9.3% 37.0% 27.3% 28.6% 10.8% 9.0% 4.8%
Net margin 6.2% 34.3% 29.8% 23.4% 1.4% 15.6% 5.3%
Cash from operations / revenue 22.0% 47.7% 39.9% 27.5% 18.2% 24.4% 17.4%
Free-cash-flow margin −3.6% 35.2% 35.6% 25.4% 1.7% 20.3% 9.6%
Free-cash-flow margin, 3-year average 1.9% 18.9% 33.8% 20.8% 9.4% 13.3% 8.5%
Stock pay / revenue 0.4% 2.0% 2.5% 3.1% 1.6% 4.6% 5.8%
Change in share count 0.9% 0.1% −1.4% −0.4% −1.7% 1.1% 0.9%

Median of all 75 companies we cover in semiconductors. Shaded: best of the six on that line (lowest for stock pay and share-count growth). 3-year figures average the last three 12-month periods; 3-year growth is compound annual. Source: SEC filings.

Peer comparison

75 semiconductor companies
Measure Company Peer median Rank
Revenue growth Growth 11.8% 13.7% 42 of 75
Change in growth rate Growth +12.6pp +3.7pp 15 of 75
Gross margin Profitability 17.7% 48.3% 66 of 73
Operating margin Profitability 8.0% 4.8% 32 of 75
Net margin Profitability 6.2% 5.3% 34 of 75
Free-cash-flow margin Cash generation -3.6% 9.6% 58 of 75
Stock pay as % of revenue Cash generation 0.4% 6.4% 8 of 74
Long-term debt as % of assets Balance sheet 24.1% 14.0% 34 of 47
Change in share count Balance sheet 0.9% 0.9% 35 of 72

Rank 1 = best in the group (for spending, debt and dilution, lower ranks first).

Who owns it

Funds buying and selling
Reported value
$6.9B
Institutions reporting
483
Shares held vs prior quarter
▼ 2.5%
Positions opened / closed
148 / 35

Top buyers and sellers, Q2 2026: 298 institutions bought and 173 sold ; the biggest buyer was Blackrock, Inc (+4.1M shares) and the biggest seller Lazard Asset Management LLC (−5.6M). See which funds bought and sold →

Largest reported holders, June 30, 2026
Manager Value Shares Share of 13F value Shares QoQ
Blackrock, Inc. $1.2B 26.3M 17.2% ▲ 18.3%
Bank Of America Corp $424M 9.4M 6.2% ▲ 37.4%
Goldman Sachs Group Inc $375M 8.3M 5.4% ▲ 42.0%
Lazard Asset Management LLC $360M 8.0M 5.2% ▼ 41.1%
UBS Group AG $351M 7.8M 5.1% ▼ 16.1%
Morgan Stanley $262M 5.8M 3.8% ▼ 13.9%
Rafferty Asset Management, LLC $249M 5.5M 3.6% ▲ 54.2%
American Century Companies Inc $241M 5.3M 3.5% ▼ 8.5%
Jpmorgan Chase & Co $224M 5.3M 3.3% ▲ 100.6%
Acadian Asset Management LLC $222M 4.9M 3.2% ▼ 33.3%
Fisher Asset Management, LLC $199M 4.4M 2.9% ▼ 8.4%
Citigroup Inc $192M 4.3M 2.8% ▲ 23.2%

From Form 13F filings with the SEC ( quarterly data sets), as reported by each manager for June 30, 2026 and filed up to 45 days later. 13F reports cover long US-listed positions of managers above $100M only, so this is not ASE Technology Holding Co., Ltd.'s complete shareholder register. Values are as reported by the filers ; 1 inconsistently scaled filing rows were excluded.

Insider trading activity

Full insider history and chart
Insider purchases History → $0 0 trades by 0 insiders, last 12 months Insider sales History → $370M 39 trades by 3 insiders · 0% under pre-set plans
Net ▼ $370M net selling
Insider Date Trade Shares Price Value
Uang Du-Tsuen Chief Administration Officer October 12, 2026 Sell 3,000 $752.00 $2.3M
Uang Du-Tsuen Chief Administration Officer July 22, 2026 Sell 3,000 $665.00 $2M
Uang Du-Tsuen Chief Administration Officer July 15, 2026 Sell 3,000 $688.00 $2.1M
Uang Du-Tsuen Chief Administration Officer July 6, 2026 Sell 2,000 $687.00 $1.4M
Uang Du-Tsuen Chief Administration Officer July 1, 2026 Sell 3,000 $709.00 $2.1M
Uang Du-Tsuen Chief Administration Officer June 30, 2026 Sell 2,000 $687.00 $1.4M
Uang Du-Tsuen Chief Administration Officer June 30, 2026 Sell 3,000 $664.00 $2M
Uang Du-Tsuen Chief Administration Officer June 23, 2026 Sell 3,000 $697.00 $2.1M
Uang Du-Tsuen Chief Administration Officer June 22, 2026 Sell 5,000 $667.00 $3.3M
Uang Du-Tsuen Chief Administration Officer June 18, 2026 Sell 3,000 $611.00 $1.8M
Uang Du-Tsuen Chief Administration Officer June 3, 2026 Sell 5,000 $617.00 $3.1M
Uang Du-Tsuen Chief Administration Officer June 1, 2026 Sell 5,000 $607.00 $3M

From insiders' Form 4 filings with the SEC. Excludes awards, option exercises and shares withheld for tax. "Pre-set plan" means the filing marks the trade as made under a Rule 10b5-1 plan. See every insider trade since five years ago, on a price chart.

Trades by members of Congress

All 3 trades and filings

No trades in ASE Technology Holding Co., Ltd. disclosed in the last 12 months; 3 earlier trades on record.

  • Sheri Biggs(R-SC 3):Sale (full), $1,001 - $15,000, traded March 18, 2025, filed October 5, 2025
  • John H. Rutherford(R-FL 4):Sale (full), $1,001 - $15,000, traded March 16, 2022, filed April 19, 2022
  • John H. Rutherford(R-FL 4):Purchase, $1,001 - $15,000, traded August 14, 2017, filed August 20, 2018

Value ranges as filed; reports can arrive up to 45 days after a trade.

Earnings dates and SEC filings

Results announcements

Recent SEC filings

Data status

When each part of this page on ASE Technology Holding Co., Ltd. was last updated.

DataLast updatedSource
Share priceExchange closing prices
News and updatesCompany releases and SEC 8-K filings
Analyst estimatesAggregated analyst estimates
Valuation and scoresOur models, from the filed figures

How we build and check these figures: methodology and data sources.

ASE Technology Holding Co., Ltd. in brief

What does ASE Technology Holding Co., Ltd. do?
ASE Technology Holding Co., Ltd. is a US-listed company in the semiconductors industry. Its financial year ends in December.
What is ASE Technology Holding Co., Ltd.'s stock ticker?
ASE Technology Holding Co., Ltd. trades under the ticker ASX on NYSE. This page brings together its financial statements, valuation models, ownership and recent company updates.
What is ASE Technology Holding Co., Ltd.'s revenue, and how fast is it growing?
Over its most recent trailing twelve months, ASE Technology Holding Co., Ltd. reported revenue of $20.7B, 11.8% higher than a year earlier, according to its SEC filings.
What is ASE Technology Holding Co., Ltd.'s free cash flow?
ASE Technology Holding Co., Ltd.'s free-cash-flow margin is -3.6% of revenue over the trailing twelve months, ranking 58 of the 75 semiconductor companies we cover.
Who are ASE Technology Holding Co., Ltd.'s largest institutional shareholders?
By value reported in 13F filings for June 30, 2026, the largest reported holders are Blackrock, Inc., Bank Of America Corp and Goldman Sachs Group Inc. 13F reports cover long US-listed positions of managers above $100M, filed up to 45 days after quarter end.
Is ASE Technology Holding Co., Ltd. buying back stock, and does it pay a dividend?
ASE Technology Holding Co., Ltd. spent $0 on share repurchases over the trailing twelve months, and its diluted share count still rose 0.9% over the year.
How much debt does ASE Technology Holding Co., Ltd. have?
ASE Technology Holding Co., Ltd.'s debt-to-equity ratio is 73.8%, from its latest balance sheet (70.1% five years earlier). The financial health section below sets out its other solvency checks.
Who are ASE Technology Holding Co., Ltd.'s competitors?
In our Semiconductors peer group, the companies closest to ASE Technology Holding Co., Ltd. are Texas Instruments, Analog Devices, NXP Semiconductors, Stmicroelectronics N.V. and Advanced Micro Devices. The side-by-side comparison below sets their revenue, margins and growth against ASE Technology Holding Co., Ltd.'s.
Are insiders buying or selling ASE Technology Holding Co., Ltd. stock?
Over the last 12 months, ASE Technology Holding Co., Ltd.'s directors and officers reported 0 open-market purchases and 39 sales on Form 4. The insider trading page charts every trade.