MPI posts first quarter gross margin numbers, shocks Goldman Sachs

MPI reported preliminary Q1 gross margin of 59.4%, beating Goldman Sachs estimates of 54.3% and consensus of 56.0%, with EPS of NT$12.5 also above expectations. The margin beat was driven by higher VPC revenue, including MEMS products, and Goldman expects further upside from MEMS capacity expansion, server-related demand, and CPO testing opportunities. The stock remains rated Buy ahead of Friday's analyst meeting.

Analysis

The market is likely underestimating how much of the margin beat is structural rather than a one-off mix benefit. If MEMS probe cards truly become the dominant share of VPC revenue, MPI’s earnings power should re-rate toward a higher-quality semiconductor test equipment multiple, because investors typically price these businesses off durability of gross margin and backlog visibility, not just headline revenue growth. The key second-order effect is that every incremental unit of capacity for high-margin MEMS products can cannibalize lower-margin legacy offerings and expand operating leverage faster than consensus models imply.

The near-term catalyst is the analyst meeting, but the real upside window is 2H26 through 1H27 as multiple MEMS programs ramp; that creates a longer-duration setup where the stock can drift higher on repeated confirmation rather than a single event. The most important thing to watch is qualification risk: EIC/PIC and die-level testing for CPO are attractive adjacent markets, but they can slip materially if customer specs or yield targets tighten. That makes the next 1-2 quarters more about order-intent validation than immediate revenue inflection.

Consensus may be too focused on AI ASIC demand and underappreciating the broader inference-driven server test opportunity. If inference workloads keep broadening the customer base, MPI’s addressable market expands beyond a single AI cycle and lowers earnings volatility, which is the kind of change that can justify multiple expansion ahead of actual revenue. The contrarian risk is that the market already prices in a strong MEMS ramp after this print, so any language at the meeting that sounds incremental rather than accelerative could trigger a sharp but temporary de-rating.

Key Decisions for Investors

• Go long MPI into/through Friday’s analyst meeting with a 4-8 week horizon; use a tight stop if management does not confirm capacity expansion or qualification milestones, since the stock is likely to be trading on forward revision velocity rather than the quarter itself.
• For higher-conviction upside, buy MPI 3-6 month call spreads to capture the 2H26/1H27 ramp narrative while limiting premium risk; best reward/risk if implied volatility spikes ahead of the meeting and then compresses after guidance.
• Pair trade: long MPI / short a lower-quality test-equipment peer with weaker gross margin durability and less MEMS exposure; the thesis is multiple expansion for quality plus margin mix, with the short leg hedging any sector-wide selloff.
• If the meeting disappoints on CPO or server-inference commentary, fade the move rather than the business: sell a post-event rally into strength, because the next material catalyst is likely months away and the stock could digest gains if new information is not additive.