Jentech Report Interpretation

Overview

The report believes Jentech, as a leading manufacturer of semiconductor package-level thermal components, will benefit from AI server demand, the accelerating Rubin series ramp-up, and upgrades to next-generation thermal designs. Based on stronger volume, ASP, and margin prospects, BofA raises its 2026-28E earnings forecasts and valuation multiple while maintaining its Buy rating.

Core views

The report first raises Jentech's medium-term earnings trajectory. BofA increases its 2026E, 2027E, and 2028E EPS forecasts from NT$61.62, NT$119.96, and NT$212.59 to NT$70.93, NT$158.82, and NT$294.64, respectively, representing upgrades of 15%, 32%, and 39%. The new forecasts are 13%, 23%, and 42% above consensus, respectively. Sales forecasts for the same period are NT$33,322mn, NT$66,115mn, and NT$115,547mn, while net profit forecasts are NT$10,409mn, NT$23,305mn, and NT$43,235mn. The report summarizes 2026-28E sales and EPS growth as CAGRs of 86% and 104%, respectively, and expects the market to raise sales and earnings forecasts after August sales are announced. Near-term growth evidence comes from 2Q26 results and the accelerating ramp-up of Rubin GPU heat spreaders. 2Q26 sales were NT$7,275mn, up 37% QoQ and 40% YoY, in line with BofA's forecast and 5% above consensus. Gross and operating margins reached 46.8% and 37.8%, respectively, 2.5 and 1.8 percentage points above BofA's forecasts and both 2.5 percentage points above consensus. Operating profit was NT$2,749mn, up 62% both QoQ and YoY, exceeding BofA's forecast and consensus by 5% and 13%, respectively; net profit was NT$2,318mn, up 66% QoQ and 107% YoY, 11% and 18% above the respective estimates. The report primarily attributes the margin beat to continued Blackwell Ultra shipments and product-mix improvement and higher ASP from the initial Rubin ramp-up. NT$92mn of non-operating income included NT$37mn of net interest income and an NT$17mn foreign-exchange loss. Entering 3Q26, BofA expects sales to grow 37% QoQ and 97% YoY. Supply-chain checks indicate that Rubin GPU heat spreader ASP may normalize from August, but volume is expected to more than double QoQ, so volume growth should be sufficient to offset the ASP decline. July sales rose 21% QoQ and 91% YoY, which the report views as the first evidence of a faster and larger ramp-up. BofA expects August sales to continue growing sequentially from July's high base, with strong monthly sales extending into 4Q26. Even against the high 2Q-3Q26 base, 4Q26 sales are still expected to grow 8% QoQ and 104% YoY. New-product ramp-ups and greater scale should also continue to drive gross and operating margins higher. The principal incremental growth driver in 2027 is Rubin Ultra. The report brings forward the initial ramp-up of its heat spreaders from the previously expected 3Q27 to 2Q27. As the design shifts to a removable lid, its ASP is expected to reach 3-4x that of the first-generation Rubin. BofA therefore expects 2027 sales to grow 98% YoY while margins continue expanding. From 2026E to 2028E, gross margin is expected to rise from 46.7% to 49.7% and 51.1%, operating margin from 38.7% to 44.5% and 47.3%, and net margin from 31.2% to 35.2% and 37.4%. The report also expects ROE of 34%-53% in 2026-28 and views higher net margins as the primary support. On competition, BofA believes Jentech holds a leading position in semiconductor package-level thermal components, including heat spreaders, lids, and stiffeners, and may become one of the first or a key supplier of advanced microchannel-lid liquid-cooling designs. The report is not concerned about peer competition because package-level thermal designs are more complex, require more advanced technology, and have stringent quality thresholds. Supply-chain checks also indicate that the company will participate selectively in thermal projects such as cold plates rather than expand indiscriminately. On valuation, BofA raises its price objective from NT$4,000 to NT$6,800, retaining 2H27-1H28E EPS as the earnings base but increasing the target P/E multiple from 25x to 30x. The report believes that greater certainty around sales and EPS growth, higher margins, and AI server demand are sufficient to support the valuation uplift. The 30x multiple is close to Delta Electronics' 31x, King Slide's 32x, and the 30x average next-twelve-month multiple of major SOX constituents. The report also compares Jentech's 104% EPS CAGR with the average 106% next-twelve-month EPS growth of SOX stocks. Jentech was then trading at 36x 2027E earnings, above the 26x average for leading Taiwan hardware companies, 25x for Greater China thermal peers, and 24x for all peers, but its PEG of 0.34 was below the peer average of 0.73. The 30x target valuation is approximately 1.5 standard deviations above the company's post-listing average P/E of 19x.

Analysis framework

The report first reviews 2Q26 results and the extent of the margin beat, then combines July sales with supply-chain checks to separate changes in Rubin product volume and ASP and project sales trends from 3Q26 through 4Q26. It subsequently incorporates the earlier Rubin Ultra ramp-up and higher ASP into 2027-28 sales, margin, and EPS forecasts. Finally, it compares P/E and PEG against historical valuations, leading Taiwan hardware companies, Greater China and global thermal peers, and SOX constituents to determine the target multiple.

Methodology notes

• Industry/Sector Analysis FrameworkPrice-Volume Decomposition

  Rubin heat spreader volume and ASP decomposition

  The report assesses volume and unit-price changes separately: although Rubin heat spreader ASP may normalize from August, volume is expected to more than double QoQ, so volume growth can still drive overall sales higher.

• Valuation MethodP/E and PEG Valuation

  Forward P/E and PEG comparable valuation

  The price objective is calculated using 30x 2H27-1H28E EPS and compared with the company's historical P/E, leading Taiwan hardware companies, thermal peers, and major SOX stocks. PEG is used to assess valuation multiples in conjunction with earnings growth.

• Corporate Fundamentals and Financial FrameworkDuPont analysis

  Analysis of ROE and net margin trends

  The report uses DuPont analysis to present Jentech's historical and forecast ROE and links its 34%-53% ROE in 2026-28 to continued net margin expansion.

• Corporate Fundamentals and Financial Framework

  iQmethod standardized financial metric system

  BofA uses iQmethod to evaluate operating performance, earnings quality, and valuation consistently, including returns on capital, cash realization ratios, net debt-to-equity ratios, and various valuation metrics, ensuring consistent historical and peer-comparison methodologies.

• Industry/Sector Analysis Framework

  Supply-chain checks

  The report uses supply-chain checks to assess Rubin volume, ASP normalization, the timing of the Rubin Ultra ramp-up, and the company's selective participation in cold-plate projects, incorporating these assessments into sales and margin forecasts.

Asset mapping & comparison

Structured mapping from thesis to named assets (strengths, weaknesses, peers, risks).

• Jentech (3653.TT/3653.TW)

  A direct beneficiary of AI server GPU platform upgrades and the evolution of package-level thermal designs, with the Rubin and Rubin Ultra ramp-ups expected to drive growth in volume, ASP, and margins.

  Strengths

  A globally leading manufacturer of semiconductor package-level thermal components, with entry barriers created by complex designs and stringent quality requirements, and the potential to become one of the first or a key manufacturer of advanced microchannel-lid liquid-cooling designs.

  Comparison

  Its 2027E P/E of 36x is above the averages for leading Taiwan hardware companies, Greater China thermal peers, and all peers, but its PEG of 0.34 is below the peer average of 0.73. The 30x target multiple is close to Delta Electronics' 31x, King Slide's 32x, and the 30x average for major SOX stocks.

  Risks

  AI server demand, migration to new thermal designs, capacity-expansion progress, raw-material costs, and USD/NTD exchange-rate movements could all affect sales, gross margin, or non-operating gains and losses.

Key data

• Price objectiveNT$6,800Raised from NT$4,000, applying 30x to 2H27-1H28E EPS
• Report price5,645 TWDPrice listed on the report's cover page
• 2026E EPSNT$70.93Previous forecast of NT$61.62, raised by 15%; 13% above consensus
• 2027E EPSNT$158.82Previous forecast of NT$119.96, raised by 32%; 23% above consensus
• 2028E EPSNT$294.64Previous forecast of NT$212.59, raised by 39%; 42% above consensus
• 2026-28E sales/EPS CAGR86%/104%The report's summary of the forecast-period growth trajectory
• 2Q26 salesNT$7,275mnUp 37% QoQ and 40% YoY, 5% above consensus
• 2Q26 gross margin/operating margin46.8%/37.8%2.5/1.8 percentage points above BofA's forecasts and both 2.5 percentage points above consensus
• 2Q26 net profitNT$2,318mnUp 66% QoQ and 107% YoY, 11% above BofA's forecast and 18% above consensus
• 3Q26E sales growth+37% QoQ / +97% YoYPrimarily driven by the accelerating ramp-up of Rubin GPU heat spreaders
• 4Q26E sales growth+8% QoQ / +104% YoYGrowth is still expected after the high 2Q-3Q26 base
• Initial Rubin Ultra ramp-up2Q27Previously expected in 3Q27; ASP is expected to be 3-4x that of the first-generation Rubin
• 2027E sales growth+98% YoYSupported by the next-generation product ramp-up and higher ASP
• 2026E-2028E gross margin46.7% / 49.7% / 51.1%Expected to expand continuously with product-mix improvement and scale benefits
• 2026E-2028E operating margin38.7% / 44.5% / 47.3%Expected to continue rising
• 2027E P/E comparisonJentech 36x; leading Taiwan hardware companies 26x; Greater China peers 25x; all peers 24xThe report's peer valuation comparison
• PEG comparisonJentech 0.34; peer average 0.73Used to compare valuation with earnings growth

Impact & implications

The report believes that the Rubin ramp-up, earlier Rubin Ultra introduction, and 3-4x ASP could transform Jentech from merely a beneficiary of AI demand into a supplier experiencing simultaneous acceleration in revenue, margins, and EPS. Earnings forecasts above consensus imply that market estimates could be raised further if August sales remain strong. Greater growth certainty and Jentech's leading position in package-level thermal components are the principal reasons BofA raises its target P/E multiple.

Risks

• Stronger-than-expected AI server demand presents upside risk to the price objective.
• Faster supply-chain migration to new thermal designs presents upside risk to the price objective.
• Faster-than-expected capacity expansion presents upside risk to the price objective.
• Favorable USD/NTD exchange-rate movements present upside risk to the price objective.
• Weaker AI server demand presents downside risk to the price objective.
• Higher raw-material costs could reduce gross margin.
• Delayed supply-chain migration to new thermal designs could weaken growth.
• Slower-than-expected capacity expansion could constrain sales realization.
• Adverse USD/NTD exchange-rate movements could weigh on gross margin or non-operating items.

What to watch

• After August sales are announced, monitor whether monthly sales continue to grow sequentially from July's high base and whether the market raises its sales and earnings forecasts.
• Monitor whether Rubin heat spreader volume can more than double QoQ and continue to offset the impact of ASP normalization.
• Monitor whether strong monthly sales can extend into 4Q26 and whether 4Q26 sales can achieve 8% QoQ growth.
• Monitor whether Rubin Ultra heat spreaders can begin ramping in 2Q27 according to the accelerated schedule.