Raise RF semiconductor price targets, but maintain UW ratings on WIN Semi and AWSC

Overview

This report covers the Greater China RF semiconductor chain, focusing on WIN Semiconductors Corp and Advanced Wireless Semiconductor Co's business momentum in 2Q26 and 2026, earnings forecast revisions, and valuation changes. Morgan Stanley acknowledges that both companies' revenue growth will be stronger than the smartphone industry, and significantly raises earnings forecasts and price targets, but believes the market's expectations for AI, InP, and optical businesses are too high, leaving the current stocks with limited appeal versus more pure-play AI names.

Core views

First, improved contributions from WIN Semi's non-smartphone businesses drive upward revisions to 2026-2028 revenue and EPS forecasts, but AI datacenter revenue still accounts for only mid-single digits in 2026, LD is unlikely to generate meaningful revenue in the near term, and 6-inch InP mass production is not expected before 2028 or 2029. Second, AWSC continues to gain share in Android smartphones; 2Q26 revenue may grow 10-15% QoQ, and 2026 revenue is expected to grow more than 20% YoY, but its smartphone share is already high, optical and AI exposure is low, and the future revenue CAGR remains limited. Third, the price target increases mainly come from earnings forecast revisions, growth assumptions, and residual income model parameter adjustments rather than rating upgrades; both companies remain Underweight.

Analysis framework

The report uses company earnings forecast revisions, quarterly financial models, residual income valuation models, risk-reward scenarios, and an industry-relative rating framework. The analysis focuses on 2Q26 revenue momentum, 2026-2028 EPS changes, UTR utilization, InP supply, LD/PD mass production timing, Android share changes, WiFi 7 and 5G specification migration, and relative attractiveness versus more pure-play AI names.

Methodology notes

• Valuation methodsResidual income model

  Residual Income Model

  The report continues to use the residual income model to derive price targets, believing it better reflects company value. WIN Semi model assumptions include an 8.0% cost of equity, 12.0% mid-cycle growth, and 3.0% perpetual growth; AWSC model assumptions include a 9.2% cost of equity, 12% mid-cycle growth, and 2.5% perpetual growth.

• ratingMorgan Stanley Relative Rating System

  Relative rating system

  Morgan Stanley's Overweight, Equal-weight, Not-Rated, and Underweight ratings are risk-adjusted total-return expectations relative to the coverage universe, not equivalent to traditional Buy, Hold, and Sell ratings. In the report, UW indicates an expectation of weaker performance versus the coverage universe over the next 12-18 months.

• scenario_analysisRisk Reward Framework

  Risk-reward scenario analysis

  The report measures upside and downside through base case, bull case, and bear case. WIN Semi's bull case value rises to NT$650 and bear case to NT$175; AWSC's bull case rises to NT$210 and bear case to NT$65.

Asset mapping & comparison

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

• WIN Semiconductors Corp (3105.TWO)

  Core coverage name; related to RF/GaAs/InP and optical businesses

  Strengths

  Improving contributions from non-smartphone businesses; significant upward revisions to 2026-2028 EPS forecasts; potential drivers from WiFi 7, 5G, 3D sensing, optical transceivers, and robotics-related products.

  Weaknesses

  AI datacenter revenue is still only in the mid-single digits in 2026; LD is unlikely to produce meaningful near-term revenue; 6-inch InP mass production is not expected before 2028 or 2029; investor expectations for the InP business are too high.

  Comparison

  AI exposure is weaker than more pure-play AI names; at the same time, it faces price competition from AWSC and Chinese peers.

  Risks

  Insufficient InP substrate supply, China export controls, delayed LD qualification, weak smartphone demand, and PA customers shifting to alternative suppliers.

• Advanced Wireless Semiconductor Co (8086.TWO)

  Core coverage name; beneficiary of rising Android smartphone RF share

  Strengths

  Gaining share in Android smartphones; 2Q26 revenue is expected to grow 10-15% QoQ; 2026 revenue is expected to grow more than 20% YoY; UTR is expected to reach 75% or higher.

  Weaknesses

  Smartphone share is already high, leaving limited incremental upside; optical and AI revenue exposure is small; an insufficient number of engineers may limit UTR improvement to above 80%.

  Comparison

  Growth is stronger than the smartphone industry, but future revenue CAGR is limited versus more pure-play AI names, reducing valuation appeal.

  Risks

  Weak demand in China Android, low visibility due to customers' rush-order model, limited UTR improvement, and WiFi 7 and spec migration coming in below expectations.

• LUMENTUM HOLDINGS INC (LITE.US)

  Company related to WIN Semi's potential optical customer and LD outsourcing expectations

  Strengths

  Demand in the optical and laser supply chain is related to AI datacenters.

  Weaknesses

  The report believes Lumentum will not outsource CW lasers or EML to WIN Semi in the near term.

  Comparison

  Market expectations for WIN Semi's mass production around 2027 may be too optimistic.

  Risks

  Long reliability testing cycles and outsourcing timing slower than market expectations.

• META PLATFORMS INC (META.US)

  A U.S. internet platform company identified in the report entities; no direct investment conclusion in the text

  Comparison

  Not a primary coverage name in this report.

Key data

• WIN Semi price targetNT$300Raised from NT$130 to NT$300, based on upward revisions to 2026-2028 EPS forecasts and higher valuation assumptions.
• AWSC price targetNT$130Raised from NT$85 to NT$130, mainly reflecting upward revisions to 2026-2028 EPS forecasts.
• WIN Semi EPS forecast revision2026e +60%; 2027e +60%; 2028e +55%The increase comes from stronger contributions from non-smartphone businesses and improved margin assumptions from optical and infrastructure businesses.
• AWSC revenue outlook2Q26 revenue +10-15% QoQ; 2026 revenue >20% YoYPrimarily driven by Android smartphone share gains; UTR is expected to reach 75% or higher.
• WIN Semi valuation assumptionsCost of equity 8.0%; mid-cycle growth 12.0%; perpetual growth 3.0%Base-case assumptions under the residual income model, with the cost of equity updated from the prior 9.2% to 8.0%.
• AWSC valuation assumptionsCost of equity 9.2%; mid-cycle growth 12%; perpetual growth 2.5%Other key assumptions are largely unchanged, but the dividend payout ratio assumption is raised from 21% to 30%.
• WIN Semi 2026e revenueNT$20,285mnThe report forecasts total 2026e revenue; 2027e is NT$24,345mn and 2028e is NT$28,758mn.
• WIN Semi 2026e EPSNT$6.352027e is NT$8.89 and 2028e is NT$12.87.

Impact & implications

The report's conclusion on the RF semiconductor chain is that fundamentals are improving but relative attractiveness remains insufficient. Higher price targets may support short-term sentiment, but the maintained UW ratings indicate the analysts believe valuations already reflect many optimistic expectations, especially for WIN Semi's InP and AI optics story and AWSC's Android share gains. For investors, the key issue is not simply revenue growth, but whether AI/optical revenue can move from marginal contribution to a sustainable main driver, and whether InP supply, LD qualification, and UTR improvement can actually be delivered.

Risks

• WIN Semi's InP substrate supply may be affected by China export controls, limiting 2H26 PD shipments.
• LD reliability testing cycles are long, and WIN Semi is unlikely to obtain meaningful LD revenue in the short term.
• The technical difficulty of 6-inch InP and insufficient substrate supply may delay scale production until 2028 or later.
• If smartphone demand remains weak, RF demand and inventory digestion could be hurt.
• Although AWSC is gaining Android share, future growth may be constrained by a high base, low AI/optical exposure, and insufficient engineering resources.
• Price competition among Chinese peers and between AWSC and WIN Semi may compress margins.
• If adoption of 3D sensing, AR, 5G, or WiFi 7 is slower than expected, related growth assumptions face downside risk.

What to watch

• Whether WIN Semi obtains CW laser and EML qualification and meaningful orders from Lumentum or major Japanese IDM customers.
• Whether InP substrate supply improves and whether China export controls continue to be a bottleneck for PD shipments.
• Whether WIN Semi's 2H26 revenue slows due to a high base, and whether gross margin improvement can continue.
• Whether AWSC's Android smartphone share gains are sustainable and whether 2Q26 revenue reaches 10-15% QoQ growth.
• Whether AWSC can maintain UTR above 75% and further improve toward 80%.
• Whether demand for WiFi 7, 5G, 3D sensing, and AI optics exceeds the report's base case.
• Changes in valuation discounts or premiums for both companies versus more pure-play AI names.