WT Microelectronics: Scale Drives Operating Leverage from AI Data Center Demand

Core Conclusion

WT Microelectronics (3036.TW) is benefiting from a structural upswing in AI data center component demand, with scale-driven operating leverage now clearly visible in 1Q26 results. The company’s 1Q26 net profit exceeded estimates by 8%, driven by a sharp reduction in the opex ratio to 1.4% from 2.0% in 4Q25 and 2.7% a year ago. Management expects operating margin to remain stable or improve slightly through 2026 as revenue growth continues. We raise 2026 EPS by 26% and maintain Overweight, with a new NT$299 price target implying 13.7x 2026 EPS.

What the Market May Be Underestimating

The market likely underestimates the degree of operating leverage that WT Micro can sustain as revenue ramps. While gross margin is compressing (1Q26: 3.4%, down 1.1ppt YoY) due to low-margin AI product mix, the opex ratio is falling faster. In 1Q26, opex fell to 1.4% of revenue from 2.7% a year ago, more than offsetting the gross margin dilution. The 2Q26 guidance midpoint implies EPS of NT$6.4, up 21% QoQ and 153% YoY, despite gross margin guidance of 3.28% (down 1.05ppt YoY). This pattern of declining gross margin but accelerating EPS growth is the hallmark of operating leverage that can persist as revenue scales from NT$1.2 trillion in 2025 to an estimated NT$2.4 trillion in 2026.

Evidence Chain

• 1Q26 results beat: Revenue NT$494.3bn (+44% QoQ, +100% YoY) in line; gross profit NT$17.0bn (GM 3.4%, 0.2ppt above estimate); net profit NT$7.0bn (+67% QoQ, +159% YoY, 8% above estimate). Opex ratio dropped to 1.4% from 2.7% in 1Q25.
• 2Q26 guidance: Revenue midpoint NT$575bn (+16% QoQ, +122% YoY); GM midpoint 3.28% (down 0.17ppt QoQ, 1.05ppt YoY); EPS midpoint NT$6.4 (+21% QoQ, +153% YoY). Management sees operating margin stable to slightly improving.
• Demand drivers: AI data center and communication demand remain strong; structural AI demand and wafer price hikes have caused some customer pull-in, but no double booking risk due to low inventory. Future Electronics business benefits from US/EU auto and industrial recovery.
• Estimate revisions: 2026 EPS raised 26% to NT$21.83; 2027/28 EPS raised 4% each to NT$24.09/NT$27.21, reflecting better net margin from operating leverage.

Key Risks & Disagreements

• Gross margin dilution risk: Continued mix shift toward low-margin AI components could compress GM further, potentially below management’s implied 3.2%+ floor. If opex ratio cannot decline proportionally, EPS growth may disappoint.
• Demand cyclicality: AI infrastructure spend could slow if hyperscalers reduce capex; any inventory correction would hit revenue and margin.
• Double booking concerns: Although management flags low inventory and no double booking, wafer price hikes may have pulled demand forward, creating a risk of normalization in 2H26.
• Future Electronics integration: Auto/industrial recovery in US/EU is assumed but macro slowdown could reverse that tailwind.

Valuation & Trade Implications

New NT$299 target (up from NT$288) is based on residual income model (12.6% cost of equity, 85% payout, 10% intermediate growth, 3% terminal). It implies 13.7x 2026E EPS, well above the 8.9x historical average since 2018, justified by AI penetration and earnings momentum. Current price NT$219 offers 37% upside. Overweight rating maintained. Key catalysts: 2Q26 results (expected in August) and continued AI demand updates. Downside risk: P/E re-rating failure if EPS growth disappoints.

Appendix: Key Financials Summary