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報告_Citi_穎崴6515_20260806

更新 2026-08-07

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報告_Citi_穎崴6515_20260806_002.png 166KB 真資料圖 兩張圖:(1) WinWay 季度銷售趨勢(1Q21-2Q26,柱狀圖+QoQ/YoY 折線),(2) WinWay 月度銷售趨勢(Jan-24 至 Jul-26)
報告_Citi_穎崴6515_20260806_004.png 50KB 真資料圖 WinWay 12M Forward P/E band 圖(Jan-20 至 Jan-26,10x/30x/50x/70x 區間線)
報告_Citi_穎崴6515_20260806_006.png 60KB 真資料圖 WinWay Forward P/B band 圖(含 Forward ROE 虛線,3x/12x/21x/30x 區間線)
報告_Citi_穎崴6515_20260806_007.png 69KB 真資料圖 Bull/Bear 目標價圖:Bull NT$15,000、Base NT$11,500、Bear NT$5,500,標示 06 Aug 26 股價 NT$6,775
報告_Citi_穎崴6515_20260806_008.png 165KB 真資料圖 兩張圖:(1) 評等與目標價沿革圖,3 個標記點(6,000→10,000→13,000,2026/02-2026/05),(2) Short-Term View/Catalyst Watch 沿革圖
報告_Citi_穎崴6515_20260806_001.png 17KB 未驗證(<40KB,預設 logo)
報告_Citi_穎崴6515_20260806_003.png 14KB 未驗證(<40KB,預設 logo)
報告_Citi_穎崴6515_20260806_005.png 20KB 未驗證(<40KB,預設 logo)

原始內容

(RIC: 6515.1W, BB: 6515 11)

TWD

10,000

8,000

6,000

4,000

2,000

Prepared for Kevin Lu

06 Aug 2026 12:43:24 ET │ 16 pages

Sep

Dec

Mar

Jun

WinWay Technology (6515.TW)

2Q26 Margin Miss Weighs, but Correction Already Reflects Headwinds; Cut TP; Reiterate Buy

CITI'S TAKE

WinWay's 2Q26 results missed on margins, with net profit coming in below Citi/cons forecasts. GPM weakness reflected an unfavorable product mix, alongside costs from scaling up new test socket capacity to meet robust backlog. While contract-based pricing limits near-term pass-through on existing projects, we expect scale effects to support recovery as capacity ramps: Jul-26 revs reached another record high. We trim 2026E/27E earnings by 4%/7% and cut our TP to NT$11,500 (from NT$13,000; 41x vs. 45x 2H27-1H28E EPS) to reflect margin headwinds. We believe the recent share price correction (c.-16% since Jul vs. TAIEX at c.-4%) already reflects these headwinds, offering a more attractive entry point. Reiterate Buy.

2Q26 results missed on margins -WinWay reported 2Q26 net profit of NT$672m (-4% QoQ/+228% YoY), missing Citi/cons forecasts by 16%/11%, driven primarily by weaker-than-expected margins. GPM came in at 38.3% (-4.7ppts QoQ/-10.6ppts YoY), below cons estimates, reflecting unfavorable mix (probe card contribution at 28% of revs), alongside costs associated with scaling up new capacity for AI/HPC test sockets to keep pace with a substantial order backlog. We believe WinWay's capacity expansion roadmap will continue to weigh on margins over the near term.

Growth trajectory remains intact despite margin pressure -As WinWay's projects and products are highly customized, it remains difficult to pass through pricing increases on existing programs to key customers under contract-based term. However, we expect rev to benefit from scale effects as new capacity comes online. We now model 3Q26 revenue to grow 25% QoQ, with margins seeing a mild recovery. WinWay reported Jul-26 rev of NT$1.6bn (+10% MoM/+156% YoY), driven by continued AI/HPC demand alongside capacity ramp-up. Sustained AI GPU/server CPU shipments and AI ASIC project ramp-up will support 2H26 growth.

Implications -We cut 2026E/27E earnings forecasts by 4%/7% and slightly tweak 2028E estimates, reflecting updated guidance and margin assumptions. We lower TP to NT$11,500 (from NT$13,000), implying 41x 2H27E-1H28E EPS (from 45x), reflecting near-term margin pressure. That said, we believe the recent share correction has already priced in the headwinds, offering a more attractive valuation entry point. We continue to favor WinWay as a core beneficiary of rising testing complexity for advanced chips across diverse platforms. Reiterate Buy.

Earnings Summary

Year to 31Dec Net Profit (NT$M) DilutedEPS (NT$) EPSgrowth (%) P/E (x) P/B (x) ROE (%) Yield (%)
2024A 1,186 34.31 153.7 197.5 43.9 26.3 0.2
2025A 1,673 46.97 36.9 144.3 37.6 27.9 0.4
2026E 3,428 95.48 103.3 71 26.9 43.7 0.7
2027E 7,218 200.79 110.3 33.7 15.1 56.2 1
2028E 13,155 365.96 82.3 18.5 8.4 57.1 2.1

Source: Powered by dataCentral

n Buy / High Risk

Catalyst Watch: Upside, expires 25-AUG-26

Price (06 Aug 26 13:30)

NT$6,775.00

Target price

NT$11,500.00↓

from NT$13,000.00

Expected share price

return

69.7%

Expected dividend yield

1.0%

Expected total return

70.7%

Market Cap

NT$244,158M US$7,564M

Price Performance (RIC: 6515.TW, BB: 6515 TT)

報告_Citi_穎崴6515_20260806_001

Michael Hung AC

+886-2-8726-9092 michael.hung@citi.com

Laura (Chia Yi) Chen +886-2-8726-9090

laura.cy.chen@citi.com

Jack Chen +886-2-8726-9091

jack1.chen@citi.com

Nicholas Lai

+886-2-8726-9093

nicholas.lai@citi.com

See Appendix A-1 for Analyst Certification, Important Disclosures and Research Analyst Affiliations.

Prepared for Kevin Lu

6515.TW: Fiscalyearend31-Dec Price: NT$6,775.00; TP: NT$11,500.00; Market Cap:NT$244,158m; Recomm:Buy/HighRisk Price: NT$6,775.00; TP: NT$11,500.00; Market Cap:NT$244,158m; Recomm:Buy/HighRisk Price: NT$6,775.00; TP: NT$11,500.00; Market Cap:NT$244,158m; Recomm:Buy/HighRisk Price: NT$6,775.00; TP: NT$11,500.00; Market Cap:NT$244,158m; Recomm:Buy/HighRisk Price: NT$6,775.00; TP: NT$11,500.00; Market Cap:NT$244,158m; Recomm:Buy/HighRisk Price: NT$6,775.00; TP: NT$11,500.00; Market Cap:NT$244,158m; Recomm:Buy/HighRisk
Profit&Loss(NT$m) 2024 2025 2026E 2027E 2028E Valuation ratios 2024 2025 2026E 2027E 2028E
Sales revenue 5,798 7,857 15,754 26,582 41,934 PE(x) na na 71.0 33.7 18.5
Cost of sales -3,265 -4,301 -9,396 -14,945 -21,756 PB(x) 43.9 37.6 26.9 15.1 8.4
Gross profit 2,534 3,556 6,358 11,637 20,179 EV/EBITDA(x) na na 56.5 26.3 14.1
Gross Margin (%) 43.7 45.3 40.4 43.8 48.1 FCFyield (%) 0.3 0.6 0.7 0.8 3.2
EBITDA(Adj) 1,528 2,256 4,270 9,111 16,606 Dividend yield (%) 0.2 0.4 0.7 1.0 2.1
EBITDAMargin(Adj) (%) 26.4 28.7 27.1 34.3 39.6 Payout ratio (%) 31 53 52 33 38
Depreciation -160 -186 -231 -357 -576 ROE(%) 26.3 27.9 43.7 56.2 57.1
Amortisation 0 0 0 0 0 Cashflow(NT$m) 2024 2025 2026E 2027E 2028E
EBIT (Adj) 1,368 2,070 4,039 8,754 16,030 EBITDA 1,528 2,256 4,270 9,111 16,606
EBIT Margin (Adj) (%) 23.6 26.3 25.6 32.9 38.2 Working capital 951 -960 189 0 0
Net interest 9 44 44 44 44 Other -1,431 507 -1,561 -4,859 -6,683
Associates -1 2 20 0 0 Operating cashflow 1,049 1,803 2,899 4,251 9,923
Non-Op/Except/Other Adj 59 -54 79 0 0 Capex -299 -280 -1,099 -2,199 -2,200
Pre-tax profit 1,435 2,061 4,182 8,798 16,074 Net acq/disposals 112 -122 -316 0 0
Tax -249 -388 -755 -1,580 -2,919 Other -898 1,124 0 0 0
Extraord./Min.Int./Pref.div. 0 0 0 0 0 Investing cashflow -1,084 722 -1,416 -2,199 -2,200
Reported net profit 1,186 1,673 3,428 7,218 13,155 Dividends paid -382 -896 -1,802 -2,399 -5,053
Net Margin (%) 20.5 21.3 21.8 27.2 31.4 Financing cashflow 516 -1,057 2,022 2,343 2,464
CoreNPAT 1,186 1,673 3,428 7,218 13,155 Net change in cash 485 1,470 3,505 4,396 10,187
Per share data 2024 2025 2026E 2027E 2028E Free cashflow to s/holders 750 1,523 1,799 2,053 7,723
Reported EPS($) 34.31 46.97 95.48 200.79 365.96
Core EPS($) 34.31 46.97 95.48 200.79 365.96
DPS($) 10.68 24.85 50.00 66.58 140.20
CFPS($) 30.35 50.61 80.74 118.27 276.04
FCFPS($) 21.70 42.75 50.12 57.10 214.84
BVPS($) 154.25 179.95 252.19 449.49 809.09
Wtdavgordshares(m) 34.6 35.6 35.9 35.9 35.9
Wtdavgdiluted shares (m) 34.6 35.6 35.9 35.9 35.9
Growthrates 2024 2025 2026E 2027E 2028E
Sales revenue (%) 57.5 35.5 100.5 68.7 57.8
EBIT (Adj) (%) 145.7 51.3 95.2 116.7 83.1
CoreNPAT(%) 155.5 41.1 104.9 110.6 82.3
CoreEPS(%) 153.7 36.9 103.3 110.3 82.3
BalanceSheet(NT$m) 2024 2025 2026E 2027E 2028E
Cash&cashequiv. 1,124 2,594 6,099 10,494 20,682
Accounts receivables 1,835 2,151 3,844 7,048 10,442
Inventory 757 842 1,618 2,587 3,498
Net fixed &other 2,497 2,562 3,425 5,167 6,629
tangibles Goodwill &intangibles 38 51 48 48 48
Financial &other assets 1,329 844 2,573 5,708 9,029
Total assets 7,580 9,044 17,607 31,051 50,327
Accounts payable 762 1,099 2,092 3,332 4,499
Short-term debt 31 0 0 0 0
Long-term debt 147 0 2,663 5,006 7,470
Provisions &other liab 1,100 1,500 3,625 6,270 8,759
Total liabilities 2,040 2,599 8,381 14,608 20,728
Minority interests 5,540 0 0 0 29,599
Shareholders' equity 6,445 0 9,226 16,444 0
Total equity 5,540 6,445 9,226 16,444 29,599
Net debt (Adj) -946 -2,594 -3,435 -5,488 -13,211
Net debt to equity (Adj) (%) -17.1
For definitions of the items in this please click here. -40.2 -37.2 -33.4 -44.6

Prepared for Kevin Lu

Figure 1. WinWay - 2Q26 earnings review

(NT$mn) 2Q26 Actual 1Q26 Actual Q/Q 2Q25 Actual Y/Y 2Q26 Citi Diff. 2Q26 Cons. Diff.
Revenue 3,523 2,980 18% 1,522 131% 3,461 2% 3,405 3%
Gross profit 1,350 1,282 5% 746 81% 1,509 -11% 1,454 -7%
Gross margin 38.3% 43.0% -4.7 ppt 49.0% -10.6ppt 43.6% -5.3 ppt 42.7% -4.4 ppt
Op. profit 825 777 6% 460 79% 953 -13% 914 -10%
OPmargin 23.4% 26.1% -2.6ppt 30.2% -6.8 ppt 27.5% -4.1 ppt 26.8% -3.4 ppt
Net income 672 699 -4% 205 228% 796 -16% 757 -11%
EPS(NT$) 18.70 19.54 -4% 5.76 225% 22.26 -16% 20.62 -9%

© 2026 Citigroup Inc. No redistribution without Citigroup's written permission.

Source: Company Reports, Citi Research Estimates, TEJ

Figure 2. WinWay - Earnings estimates revision

2026E 2026E 2026E 2027E 2027E 2027E 2028E 2028E 2028E
(NT$mn) New Old Chg. New Old Chg. New Old Chg.
Sales 15,754 14,569 8% 26,582 25,835 3% 41,934 40,828 3%
Sequential growth 101% 85% 69% 77% 58% 58%
Gross profit 6,358 6,555 -3% 11,637 12,651 -8% 20,179 20,765 -3%
Opex 2,319 2,357 -2% 2,883 3,331 -13% 4,149 4,987 -17%
Operating profit 4,039 4,198 -4% 8,754 9,320 -6% 16,030 15,778 2%
Pre-tax profit 4,182 4,332 -3% 8,798 9,364 -6% 16,074 15,822 2%
Net income 3,428 3,576 -4% 7,218 7,741 -7% 13,155 13,059 1%
EPS (NT$) 95.48 100.04 -5% 200.79 216.54 -7% 365.96 365.29 0%
Gross margin 40.4% 45.0% -4.6ppt 43.8% 49.0% -5.2 ppt 48.1% 50.9% -2.7 ppt
Opex ratio 14.7% 16.2% -1.5 ppt 10.8% 12.9% -2.0 ppt 9.9% 12.2% -2.3 ppt
Operating margin 25.6% 28.8% -3.2 ppt 32.9% 36.1% -3.1 ppt 38.2% 38.6% -0.4 ppt
Net margin 21.8% 24.5% -2.8 ppt 27.2% 30.0% -2.8 ppt 31.4% 32.0% -0.6ppt

© 2026 Citigroup Inc. No redistribution without Citigroup's written permission.

Source: Citi Research Estimates

報告_Citi_穎崴6515_20260806_002

Prepared for Kevin Lu

Figure 5. WinWay - In-house spring probe capacity trend

報告_Citi_穎崴6515_20260806_003

© 2026 Citigroup Inc. No redistribution without Citigroup's written permission. Source: Company Reports, Citi Research

報告_Citi_穎崴6515_20260806_004

© 2026 Citigroup Inc. No redistribution without Citigroup's written permission. Source: Company Reports, Citi Research Estimates, TEJ

Figure 6. WinWay - Test socket capacity trend

報告_Citi_穎崴6515_20260806_005

© 2026 Citigroup Inc. No redistribution without Citigroup's written permission. Source: Company Reports, Citi Research

報告_Citi_穎崴6515_20260806_006

© 2026 Citigroup Inc. No redistribution without Citigroup's written permission. Source: Company Reports, Citi Research Estimates, TEJ

Prepared for Kevin Lu

Figure 9. WinWay - Quarterly earnings forecast

(NT$in Mn, year-end Dec) 1Q26 2Q26 3Q26E 4Q26E 1Q27E 2Q27E 3Q27E 4Q27E 2025 2026E 2027E 2028E
Net sales 2,980 3,523 4,404 4,846 5,318 6,040 7,042 8,183 7,857 15,754 26,582 41,934
Gross Profit 1,282 1,350 1,760 1,965 2,217 2,556 3,114 3,750 3,556 6,358 11,637 20,179
OPEX (505) (525) (635) (654) (653) (685) (736) (809) (1,487) (2,319) (2,883) (4,149)
Operating profit 777 825 1,125 1,312 1,564 1,872 2,378 2,941 2,070 4,039 8,754 16,030
Total Non-OP 97 22 9 15 8 13 9 15 (8) 143 44 44
Pre-tax profit 874 848 1,134 1,326 1,571 1,885 2,386 2,955 2,061 4,182 8,798 16,074
Income tax (175) (175) (199) (204) (316) (390) (419) (455) (388) (755) (1,580) (2,919)
Net Profit 699 672 935 1,122 1,256 1,495 1,967 2,500 1,673 3,428 7,218 13,155
EPS (NT$) 19.54 18.70 26.00 31.21 34.94 41.58 54.72 69.55 46.97 95.48 200.79 365.96
Revenue mix
Test & Burn-in socket 65% 64% 66% 64% 67% 68% 70% 75% 56% 65% 70% 77%
Coaxial socket 47% 50% 56% 56% 59% 59% 64% 69% 43% 53% 63% 72%
RF&Plastic socket 17% 12% 8% 6% 7% 7% 6% 5% 9% 10% 6% 4%
Burn-in socket 1% 2% 2% 1% 1% 1% 1% 1% 4% 2% 1% 1%
Contact element 7% 6% 6% 5% 5% 5% 5% 4% 10% 6% 5% 4%
Probe card 26% 28% 27% 29% 27% 26% 23% 20% 29% 28% 24% 19%
Others 3% 2% 2% 1% 1% 1% 1% 1% 4% 2% 1% 1%
Margins (%)
Gross profit 43.0% 38.3% 40.0% 40.6% 41.7% 42.3% 44.2% 45.8% 45.3% 40.4% 43.8% 48.1%
OPEXtosales 16.9% 14.9% 14.4% 13.5% 12.3% 11.3% 10.4% 9.9% 18.9% 14.7% 10.8% 9.9%
Operating Margin 26.1% 23.4% 25.6% 27.1% 29.4% 31.0% 33.8% 35.9% 26.3% 25.6% 32.9% 38.2%
Pre-tax profit 29.3% 24.1% 25.7% 27.4% 29.6% 31.2% 33.9% 36.1% 26.2% 26.5% 33.1% 38.3%
Net Margin 23.4% 19.1% 21.2% 23.2% 23.6% 24.7% 27.9% 30.6% 21.3% 21.8% 27.2% 31.4%
Y/Y
Net sales 29.7% 131.4% 144.1% 117.0% 78.4% 71.4% 59.9% 68.9% 35.5% 100.5% 68.7% 57.8%
Gross profit 14.4% 81.1% 131.9% 111.0% 73.0% 89.3% 76.9% 90.8% 31.7% 118.5% 59.1% 45.6%
Operating profit 6.8% 79.4% 176.3% 176.4% 101.4% 126.8% 111.3% 124.2% 51.3% 95.2% 116.7% 83.1%
Pre-tax profit 14.2% 219.9% 146.9% 132.1% 79.8% 122.4% 110.4% 122.8% 43.7% 102.9% 110.4% 82.7%
Net Margin 14.0% 228.0% 151.4% 132.2% 79.8% 122.4% 110.4% 122.8% 41.1% 104.9% 110.6% 82.3%
Q/Q
Net sales 33.4% 18.2% 25.0% 10.0% 10% 14% 17% 16%
Gross profit 37.6% 5.4% 30.4% 11.6% 13% 15% 22% 20%
Operating profit 63.6% 6.2% 36.4% 16.6% 19% 20% 27% 24%
Pre-tax profit 52.9% -3.0% 33.8% 17.0% 18% 20% 27% 24%
Net Margin 44.5% -3.8% 39.1% 20.0% 12% 19% 32% 27%

© 2026 Citigroup Inc. No redistribution without Citigroup's written permission.

Source: Company Reports, Citi Research Estimates

Prepared for Kevin Lu

Catalyst Watch on WinWay Technology (6515.TW)

Direction:

Upside

Duration:

Within 90 Days (expires 25 Aug 2026) 26 May 2026 Earnings

Date Added:

Catalyst:

We have an accelerating earnings growth outlook for WinWay as a dominant beneficiary of the rising demand for AI GPUs and the SLT volume multiplier. Specifically, we believe the mass production of next-gen US AI GPU in 2Q26 and the upcoming AI ASIC project in 2H26 could be the catalysts. With leading positions in high-speed coaxial sockets and thermal management, combined with an improving sales mix from MEMS expansion, we are positive over WinWay's structural growth outlook.

NT$

15k

13k

10k

7,500

5,000

2,500

Aug 25

than-expected SLT station deployments for the next-gen Al GPU/ASIC architecture.

4121% Upside

NT$ 11,500.00

4 70% Upside

NT$ 5,500.00

• 19% Downside

Bull/Bear: WinWay Technology (6515.TW)

報告_Citi_穎崴6515_20260806_007

• Target PE multiple of 50x

BASE Assumptions

  • @ · Test socket revenue growth of + 131% in 2026E, supported by steady transition to next-gen Al GPU platform and the 4- 5x volume multiplier in the SLT market. · Target PE multiple of 41x

BEAR Assumptions

  • Weaker-than-expected test socket revenue growth of +60% in 2026E, due to potential delays in next-gen GPU roadmaps or intensified competition in the high-frequency socket segment. · Target PE multiple of 35x

Prepared for Kevin Lu

Prepared for Kevin Lu

WinWay Technology

Company description

WinWay, founded in 2001, is a global leader in semiconductor test interfaces and the world's largest test socket supplier. Originally specializing in highspeed solutions for IC design and OSAT firms, WinWay now dominates the AI and HPC sectors. The company provides a comprehensive portfolio including coaxial sockets, burn-in sockets, probe cards (MEMS & VPC), and advanced thermal management systems. Its flagship hypersocket technology and vertically integrated manufacturing enable high-performance validation for next-generation accelerators. WinWay's diverse solutions support missioncritical applications across global AI infrastructure, networking, and highspeed computing.

Investment strategy

We rate WinWay at Buy/High Risk (1H). We believe WinWay is well positioned for the AI infrastructure cycle, with dominance in the US AI GPU testing supply chain and participation in US CSP AI ASIC projects. Its leading proprietary coaxial socket and hypersocket technologies should provide a defensible technical moat as 224G SerDes and extreme package complexities expand. The company captures a wider share of the test interface market through its premium sockets and high-quality service, providing a multilayered earnings engine supported by structural growth in AI testing intensity.

Valuation

We value WinWay using a PE-based approach that factors in earnings momentum and likely expansion of its addressable market. Our target price of NT$11,500 is derived from applying c.41x to 2H27E-1H28E EPS, higher than the upper end of its long-term PE range, which we believe is justified given the company's entrenched position in the high-end AI GPU testing supply chain, rising contribution from coaxial socket and SLT solutions, and the increasing value of test content per module. With these structural drivers in place, and as we believe the market is starting to value it as an AI/HPC play (rather than a consumer electronics stock), we expect the multiple to hold at a premium relative to its historical averages.

Risks

Our quant rating system rates the WinWay stock High Risk based on its historical volatility.

Key downside risks that could impede the stock from reaching our target price and our earnings forecasts include: 1) client and sector concentration specifically any delays in US AI GPU product roadmap could impact the business outlook for WinWay; 2) intensifying competition in coaxial and hypersockets from global peers; 3) faster-than-expected testing algorithm optimization, which could shorten testing durations and reduce the anticipated hardware demand multiplier; and 4) delay of MEMS Phase 2 mass production.

Analyst: Michael Hung

Date

Date

TWD

10,000

5,000

If you are visually impaired and would like to speak to a Citi representative regarding the details of the graphics in this document, please call USA 1-888-500-5008 (TTY: 711), from outside the US +1-210-677-3788

Appendix A-1