Strong Japanese First-Quarter Earnings Raise the Probability of TOPIX ROE Exceeding 10%

Overview

This report summarizes the first-quarter earnings season for Japanese companies with March fiscal year-ends and assesses the Japanese equity market in conjunction with earnings revisions, buybacks, FX assumptions, fund flows, and sector performance. It notes that earnings beats were broad-based, stemming not only from AI-related demand but also from sectors including banks, autos and auto parts, and IT and services.

Core views

First-quarter earnings beats materially improve the outlook for TOPIX earnings and ROE; accelerating corporate buybacks further strengthen the shareholder-return case. The median corporate USD/JPY assumption has been raised from 151 in initial guidance to 155, but remains below the spot level of approximately 159, indicating that FX could still provide earnings upside. Meanwhile, market reactions following negative earnings surprises are at elevated levels relative to the past 15 years, and post-announcement dispersion and volatility remain high.

Analysis framework

The report focuses on TOPIX and highly liquid Japanese equities, aggregating quarterly earnings surprises, full-year guidance revisions, sector earnings contributions, valuation and ROE, buyback announcements, investor fund flows, style and sector relative performance, and comparisons with global earnings revision momentum.

Methodology notes

• Earnings RevisionsEarnings Forecast Revision Index

  The number of analyst forecast upgrades minus the number of downgrades over the past month, divided by the total number of forecasts.

  Used to measure marginal improvement or deterioration in earnings expectations and compare earnings momentum in Japan with other regions.

• Stock Universe ConstructionHighly Liquid Japanese Equity Universe

  Includes Japanese stocks with average daily trading value over the past six months exceeding US$20 million.

  As of December 17, 2025, the universe contained 271 stocks; it is updated annually.

• Index ConstructionEqual-Weighted Sector and Theme Indices

  Stock selection is based on MSCI sector and sub-industry definitions, quantitative indicators, and Goldman Sachs single-stock analyst views.

  The report tracks 45 equal-weighted sector, sub-industry, and cross-sector thematic indices; the same stock may appear in multiple indices, and newly listed stocks are excluded from index performance for their first 12 months.

• Cross-Sectional PerformanceBest-Worst Spread

  The return difference between the best- and worst-performing constituents in each index.

  Used to observe the degree of return dispersion and weekly volatility within sectors or themes.

Asset mapping & comparison

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

• TOPIX

  Core market benchmark

  Strengths

  First-quarter earnings broadly exceeded expectations, earnings guidance was raised, buyback momentum is strong, and the ROE outlook has improved.

  Weaknesses

  Targets are close to the index level at the time, implying limited short-term upside.

  Comparison

  Goldman Sachs sets 3/6/12-month targets of 4,200/4,300/4,500.

  Risks

  Penalties following negative earnings surprises are significant, post-announcement volatility is high, and FX changes may affect earnings expectations.

• Japanese Machinery Sector

  Goldman Sachs overweight sector

  Strengths

  Benefits from improving Japanese corporate earnings and capital-expenditure-related themes.

  Weaknesses

  The report does not provide specific valuation or single-stock quantitative support.

  Comparison

  Included among Goldman Sachs's overweight sectors.

  Risks

  Risks from external demand, FX, and earnings delivery.

• Japanese Electric Power and Gas Sector

  Goldman Sachs overweight sector

  Strengths

  Included among Goldman Sachs's overweight sectors.

  Weaknesses

  The report does not disclose specific earnings forecasts or valuation details.

  Comparison

  A more preferred allocation direction relative to pharmaceuticals, electrical equipment and precision instruments, transportation and logistics, and steel and nonferrous metals.

  Risks

  Risks from policy, energy costs, and regulatory changes.

• Japanese IT and Services Sector

  Goldman Sachs overweight sector

  Strengths

  Made a substantial contribution to first-quarter earnings beats and is included among Goldman Sachs's overweight sectors.

  Weaknesses

  The report does not provide the distribution of earnings performance among companies within the sector.

  Comparison

  Together with AI-related sectors, it is a source of positive earnings contribution.

  Risks

  Risks from valuation, demand sustainability, and elevated earnings expectations.

Key data

• Weekly Performance of TOPIX and Nikkei 225TOPIX 4,197.20 (+3.0%); NK225 68,713.80 (+4.7%)Weekly data listed on the report cover page.
• Earnings Surprise RatioPositive surprises 64%; negative surprises 24%Positive surprises materially outnumbered negative surprises.
• Net Income Surprise+27% versus consensus expectationsAggregate first-quarter net income performance in Japan.
• Full-Year Guidance RevisionsApproximately 15% of companies raised full-year guidance; aggregate recurring profit revisions were close to +5%Reflects improving corporate expectations for full-year earnings.
• Year-over-Year Net Income Growth+64%Applies to first-quarter net income of TOPIX constituent companies with February or March fiscal year-ends.
• Corporate USD/JPY AssumptionsInitial guidance 151, current median 155; spot approximately 159Corporate assumptions have risen but remain below the spot exchange rate.
• Investor Fund FlowsForeign investors net sold ¥376.0 billion; individuals net sold ¥132.0 billion; domestic institutions net bought ¥1.0 trillionTokyo Stock Exchange Prime Market cash equity data for August 3 to 7.
• TOPIX Targets3/6/12 months: 4,200/4,300/4,500Goldman Sachs market targets.
• USD/JPY Forecast AssumptionsFY26/FY27/FY28: 162/160/155Goldman Sachs forecast assumptions.

Impact & implications

For Japanese equities, earnings beats, higher full-year guidance, and increased buybacks provide dual support for valuation and earnings improvement, and the market may increasingly price a scenario in which TOPIX ROE rises above 10%. Investment attention should focus on the sustainability of earnings revisions, the actual FX path, and the breadth of earnings across sectors, while avoiding explaining overall earnings improvement solely through the AI theme.

Risks

• Stocks with earnings misses may face more pronounced negative price reactions after announcements than at most points over the past 15 years.
• Post-earnings-announcement volatility remains elevated, and the market is sensitive to changes in fundamentals.
• If the yen exchange rate deviates materially from corporate assumptions, it may alter earnings expectations for exporters and the market overall.
• Part of the current earnings improvement has been driven by strong AI demand, a weak yen, and previously conservative guidance; if these drivers weaken, earnings upgrades may slow.
• Foreign and individual investors were net sellers during the week, and changes in fund flows may amplify market volatility.

What to watch

• The ratio of positive to negative earnings surprises in subsequent quarters and net income performance relative to consensus expectations.
• Whether corporate full-year recurring profit guidance continues to be raised and whether TOPIX ROE can actually exceed 10%.
• The cumulative scale and execution progress of buyback announcements.
• The divergence of USD/JPY spot moves from the corporate median assumption of 155 and Goldman Sachs's FY26-FY28 FX assumptions.
• Whether earnings contributions from non-AI sectors such as banks, autos and auto parts, and IT and services can continue.
• Fund flows of foreign investors, individuals, and domestic institutions on the Tokyo Stock Exchange.