ENVALITH

SEIKOH GIKEN Co., Ltd. 2Q Earnings Preview

This quarter will test whether growth in AI data center–related Optical Products can be sustained, and how well the company tracks against its upwardly revised 1H plan.

PublishedNovember 11, 2026 at 15:30 GMT+9

Summary

In 1Q, revenue and profit at every level hit record highs since the company's founding. Based on 1Q results and current order trends, the company raised its 1H and full-year guidance. Backing out from the revised 1H plan, 2Q standalone revenue is implied at JPY 10,992M, above 1Q's JPY 8,608M (our estimate). However, the implied 2Q standalone Operating Income Margin of 25.3% is more conservative than 1Q's 31.6% (our estimate). The key question for the upcoming results is how far optical connector polishing machines/measurement equipment and optical communication components can grow revenue, and what margins they can sustain. We will also monitor whether automotive components in Precision Machinery remain firm, and whether the inventory build converts into revenue.

Key Points for Next Quarter

Key Points & FocusImplications

Plan Achievement1H Revenue and Recurring Profit vs. upwardly revised plan

1Q Recurring Profit represents 50.8% of the 1H plan of JPY 5,550M (our estimate). Delivering the implied JPY 2,728M in 2Q standalone would underpin the full-year assumption of JPY 12,100M.

Optical Products2Q standalone Optical Products revenue and segment profit vs. 1Q

1Q revenue was JPY 6,060M (+91.7%) and segment profit JPY 2,421M (+148.1%). The focus is whether accelerating orders for polishing machines/measurement equipment translate into 2Q revenue.

Profitability1H cumulative Gross Profit Margin and 2Q standalone Operating Income Margin

1Q Gross Profit Margin was 51.5%, up from 44.5% a year earlier. The gap versus the planned 2Q standalone Operating Income Margin of 25.3% (our estimate) indicates the potential for upside.

Precision Machinery1H cumulative Precision Machinery revenue and segment profit YoY

1Q revenue was JPY 2,548M (+7.3%), a record for a first quarter. With management viewing auto production as flat to softening, we will check whether revenue growth continues.

Supply Capacity & Capital Efficiency2Q-end inventory balance and 1H cumulative operating CF

Raw materials and supplies stood at JPY 2,850M at 1Q-end, +44.3% vs. the start of the fiscal year (our estimate). We will assess whether this build is serving as production preparation for the planned 2Q revenue growth.

Key Issues from Previous Results (FY3/27 1Q Results)

Optical Products drove 1Q, with revenue of JPY 8,608M (+55.5%) and Operating Income of JPY 2,721M (+131.3%), both record highs since the company's founding. On the same day, the company raised its 1H and full-year guidance and announced a dividend increase. This fiscal year is the final year of the medium-term management plan, "Master Plan 2022." 2Q will show whether actual results can validate the upwardly revised plan.

1. Results vs. Upwardly Revised 1H Plan

  • Previous Quarter: 1Q Recurring Profit was JPY 2,822M (+137.0%), representing 50.8% of the 1H plan of JPY 5,550M (our estimate).
  • This Quarter Check: The implied 2Q standalone Recurring Profit is JPY 2,728M, above JPY 1,664M a year earlier (our estimate). Implied 2Q standalone revenue of JPY 10,992M would exceed the prior-year 4Q's JPY 9,918M, a record quarterly level (our estimate).
  • Key Metrics: The 1H plan calls for revenue of JPY 19,600M and Operating Income of JPY 5,500M. We will also track 2Q standalone revenue YoY (JPY 6,597M a year earlier).

2. Optical Products: Optical Communication Components and Polishing Machines/Measurement Equipment as Twin Growth Drivers

  • Previous Quarter: Revenue of JPY 6,060M (+91.7%) and segment profit of JPY 2,421M (+148.1%). The segment accounted for 70.4% of revenue (our estimate).
  • This Quarter Check: Polishing machines/measurement equipment tend to track customer capex. We want to see how much of the order acceleration is reflected in 2Q revenue.
  • Key Metrics: 2Q standalone segment revenue and segment profit vs. 1Q (JPY 6,060M and JPY 2,421M in 1Q). Segment margin was 40.0% in 1Q vs. 30.9% a year earlier (our estimate).

3. Margin Levels: Product Mix and Rising Costs

  • Previous Quarter: Gross Profit Margin was 51.5% (44.5% a year earlier), and Operating Income Margin was 31.6% (25.7% for the prior full year). The company attributes this to "higher revenue from relatively profitable products."
  • This Quarter Check: The planned 2Q standalone Operating Income Margin is 25.3% (our estimate). The focus is on shifts in product mix and whether the increase in SG&A, which reached JPY 1,711M (+32.8%), continues. 1Q included a non-operating FX gain of JPY 55M and an extraordinary gain of JPY 103M from the liquidation of a subsidiary. We will also review the breakdown of extraordinary items and income taxes.
  • Key Metrics: 1H cumulative Gross Profit Margin and 2Q standalone Operating Income Margin vs. 1Q. We will also track 1H cumulative SG&A YoY (JPY 2,577M a year earlier).

4. Precision Machinery: Sustained Strength in Automotive Components

  • Previous Quarter: Revenue of JPY 2,548M (+7.3%), a record for a first quarter, and segment profit of JPY 299M (+49.3%).
  • This Quarter Check: We want to confirm whether growth in automotive sensor components and EV inverter/compressor components continues into 2Q.
  • Key Metrics: 1H cumulative segment revenue and segment profit YoY. 1Q segment margin was 11.6% (8.4% a year earlier, our estimate).

5. Inventory Build and Supply Capacity

  • Previous Quarter: Total inventory at 1Q-end was JPY 6,118M, +22.4% vs. the start of the fiscal year (our estimate). Of this, raw materials and supplies accounted for JPY 2,850M.
  • This Quarter Check: The company is shortening lead times by expanding headcount and strengthening supplier relationships. We will assess how the inventory build feeds into 2Q revenue growth.
  • Key Metrics: 2Q-end inventory and notes and accounts receivable balances, and 1H cumulative operating CF (JPY 1,141M a year earlier).

Key Timely Disclosures This Fiscal Year

  • 2026/08/10
    Revision of FY3/27 2Q (1H) and Full-Year Consolidated Guidance and Revision of Dividend Forecast (Dividend Increase) - Based on 1Q results and current order trends, the company raised the guidance it announced on May 14, 2026. The full-year plan now calls for revenue of JPY 41,000M and Operating Income of JPY 12,000M. The annual dividend forecast was raised to JPY 150 on a pre-split basis, up from JPY 100 in the prior fiscal year. 2Q will be the first set of results to test whether actual performance supports the revised plan.

Previous Quarter Results (FY3/27 1Q Actual)

The company operates two segments: Precision Machinery and Optical Products. Precision Machinery covers precision molded products, molds, and metal components. Optical Products covers optical communication components, optical connector polishing machines/measurement equipment, and optical electric field sensors, among others. "Master Plan 2022," which concludes this fiscal year, rests on four pillars: "revitalizing customer engagement," "accelerating new product and technology development," "strengthening manufacturing capabilities," and "reinforcing the management foundation." In 1Q, the spread of generative AI lifted demand for optical connectors, and revenue and profit at every level hit record highs since the company's founding.

ItemAmountYoYvs. Company PlanNotes
RevenueJPY 8,608M+55.5%-Optical Products +91.7%. Achievement rate vs. 1H plan of 43.9% (our estimate)
Operating IncomeJPY 2,721M+131.3%-Higher revenue from profitable products. Operating Income Margin of 31.6%
Recurring ProfitJPY 2,822M+137.0%-Includes FX gain of JPY 55M. Achievement rate vs. 1H plan of 50.8% (our estimate)
Quarterly Net Income Attributable to Owners of Parent CompanyJPY 2,207M+133.3%-Extraordinary gain of JPY 103M from liquidation of a subsidiary
EPSJPY 246.91+132.5%-Pre-split basis. Company guidance is disclosed on a post-split share count basis

Guidance Achievement Rate vs. Full-Year Plan (Recurring Profit Basis): 23.3% (Prior Year: -) The prior year's full-year plan is not included in this material, so the prior-year field is shown as "-". For reference, the achievement rate vs. the 1H plan is 50.8% (our estimate).

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