17 and 36 Points — Deconstructing the Influence of Proxy Advisory Firms

ISS / Glass Lewis combined market share 90%, structural influence on institutional investor votes.

How much influence do proxy advisory firms—ISS and Glass Lewis—exert over institutional investor voting on director elections and shareholder proposals at Japanese listed companies? According to Harvard Law School Forum on Corporate Governance 2024 data, negative recommendations from both firms create a 17-point support gap for director elections, a 36-point gap for shareholder proposals, and a 35-point gap for Say-on-Pay votes. With combined market share of 90%, this analysis decodes the numerical structure of their influence, reviews ISS and Glass Lewis 2025 Japan standards, examines corporate engagement strategies, and explores the structural asymmetry that favors defense: the requirement to hold only a majority while attackers must win one.

Introduction — A 90% Market, Two Numbers

Before voting happens at any Japanese shareholder meeting, the outcome is already partly determined.

The question is: how will institutional investors vote, and what recommendation will proxy advisory firms make beforehand? This two-stage structure—institutional judgment framed by proxy advisor recommendation—defines modern Japanese corporate governance practice.

According to Harvard Law School Forum on Corporate Governance 2024 data, market control is clear. ISS holds 48% market share, Glass Lewis 42% (measured by assets under advice). Combined, both firms control approximately 90% of the proxy advisory market.

The numerical impact of negative recommendations is measurable by proposal type:

• Director elections: negative recommendation from both firms creates 17-point support gap
• Say-on-Pay proposals: negative recommendation creates 35-point support gap
• Shareholder proposals: negative recommendation creates 36-point support gap

This article decodes what the "17" and "36" numbers mean: reviewing both firms' 2025 Japan standards, corporate engagement practice, and the structural asymmetry that favors those defending the status quo. Analysis is grounded in primary data and market structure rather than individual company disputes.

0117 Points — Director Elections

Begin with the first number: 17 points.

Director elections are the most frequent shareholder meeting proposal type and the most fundamental governance signal for management. In Japan, directors are typically elected by ordinary resolution (majority of voting shareholders). When both ISS and Glass Lewis recommend rejection, institutional investor support drops approximately 17 points versus recommendations that are neutral or favorable.

17 points is consequential in vote counting.

For a director already running at 70% institutional support during normal times, a 17-point drop moves them to barely 53%—the danger zone just above the 50% threshold. Add organized activist opposition and this zone becomes vulnerable. Proxy fight history follows this pattern exactly.

In the 2018 Goyo Intech case, the founder-CEO removal passed at 82% support—textbook behavior when proxy advisors align institutions behind one direction. In the 2019 LIXIL dispute, founder-linked shareholder proposals succeeded via institutional momentum.

0236 Points — Shareholder Proposals

The second number, 36 points, carries different meaning.

Shareholder proposals—increased dividends, charter amendments, director removal, forced stock sales policies—operate on different mechanics than director elections. Many require supermajority (two-thirds approval), raising the win threshold above simple majority. Yet when both ISS and Glass Lewis recommend approval, institutional support rises 36 points compared to opposition—more than double the 17-point swing for director elections.

Why the larger gap?

Institutional investors treat director elections as "proposals they vote for unless proven otherwise"—default momentum. Shareholder proposals require "a reason to vote yes," and institutions heavily depend on advisor guidance to build that rationale. EY Japan's 2024 shareholder proposal survey found proposals reaching 20%+ support in 48% of cases; total proposal volume hit 344 in 2023. Activist funds grew from 8 companies in 2014 to 69 by May 2023.

In this environment, 36 points functions as the pivot point—whether a proposal reaches the win zone depends entirely on advisor recommendation alignment.

Say-on-Pay's 35-point gap carries less direct impact in Japan (where compensation governance remains less embedded than in US/UK markets), but rising importance is signaled for 2026 onward.

03ISS 2025 Japan Standards — What Triggers Opposition, What Avoids It

ISS Governance Japan's 2025 Proxy Voting Guidelines explicitly define opposition triggers for director elections. Reviewed from primary sources:

Financial Metrics Triggering Opposition

• ROE below 5% in current fiscal year → consider opposition to CEO or Chairman
• ROE above 8% (5-year average or current year) → opposition recommendation withheld (deemed acceptable)

This defines Japan's critical ROE threshold: the 8% line. Clear it and ISS's financial opposition trigger is avoided. Fall below 5% and CEO opposition becomes real.

Governance Metrics Triggering Opposition

• Independent director tenure exceeding 12 years → affects independence classification (effective Feb 2025)
• Cross-held equity above 20% of net assets (no reduction plan) → director opposition
• Cross-held equity reduction plan disclosed (to ≤20%) → opposition withheld

Cross-held equity treatment represents ISS's largest Japan benchmark shift. The "20% of net assets" line is now explicit.

Practically, avoiding ISS opposition requires: (1) ROE ≥8%, (2) cross-held equity reduction plan disclosed, (3) independent director tenure management.

04Glass Lewis 2025 Japan Standards — Independence and Gender Diversity

Glass Lewis 2025 Japan Benchmark Policy Guidelines evaluate Japanese governance on different axes.

Director Independence Requirements

• Audit committee majority must be independent outside directors (all market segments)
• All independent outside directors AND all independent auditors with 12+ years continuous tenure → oppose board chair or nomination committee chair (effective Jan 2025)

While ISS judges independence through individual director tenure, Glass Lewis imposes a structural requirement: "audit committee majority independent" applies uniformly across Prime, Standard, and Growth segments.

Director Board Gender Diversity (2026 Standard)

• Prime-listed: effective Jan 2026, require 20%+ gender-diverse directors
• Other markets: require 1+ gender-diverse director minimum

This 2026 enforcement marks a new standard with limited preparation runway. Prime boards typically field 8-10 directors; 20% requires at minimum 2 gender-diverse seats.

Glass Lewis's distinction: ISS drives financial metrics, Glass Lewis drives structural governance. Companies must simultaneously satisfy both—a two-axis defense strategy.

05Corporate Engagement Strategy — Advisor Meetings and 20-Day Lead Time

Given both firms' influence over institutional votes, direct corporate dialogue with proxy advisors is now standard IR practice.

Both firms maintain corporate inquiry windows and accept "governance engagement meetings." Business Lawyers documentation confirms for Glass Lewis: Tokyo office, Japanese language support, average 20-day lead time before shareholder meeting.

The 20-day window is operationally critical. When notice of meeting goes out (typically 3-4 weeks prior), Glass Lewis draft recommendations align with this timing. Companies that provide supplementary documentation within this window can influence final recommendations. ISS engagement procedures and specific lead times are not publicly disclosed, though both maintain "engagement as governance good practice" positioning.

However, the Financial Services Agency's June 2025 revised Stewardship Code mandates that institutional investors exercise voting rights "under their own responsibility and judgment," not relying mechanically on advisor guidance. Formally, advisor recommendations downgraded to reference material.

Yet the market reality—17-36 point swings from dual-firm recommendations on 90% market share—indicates daylight between code aspiration and operational reality.

06Institutional Investor Map — 235 Asset Managers and GPIF

Understanding whose votes proxy advisors influence requires mapping institutional ownership.

FSA Stewardship Code signatory list (Sept 30, 2024) shows: 235 asset managers, 62 pension entities, public pension systems including GPIF.

GPIF dominates. End-fiscal-2024 assets: approximately 246 trillion yen (per GPIF public data). As a primary Japanese equity holder, GPIF and its delegated managers serve as benchmark-setters for market stewardship policy.

Among 235 asset managers, most claim "use ISS/Glass Lewis guidance but form independent judgment." Formally independent. Operationally, advisor influence is measurable in the 17-36 point swings cited above.

07Structural Asymmetry — "Defense Wins if It Holds Majority"

An embedded asymmetry favors incumbent defense.

Per EY Japan 2024 data, 344 shareholder proposals landed in 2023, yet few pass; total passage rate under 5% (by total proposal count; rates differ if denominator is "proposals that reached voting.") Underlying this low passage rate sits structural reality: attackers need a majority; defenders need only hold majority.—attackers must win; defenders merely defend.

For ordinary votes, attackers organize >50% support; defenders keep it <50%. The cost asymmetry is structural.

Yet this asymmetry functions only if institutional votes remain with defenders. If proxy advisors flip to the attack, those votes depart. The asymmetry collapses.

Re-examining 17-36 points: this swing measures institutional vote mobility. When advisor recommendations stay neutral or favorable, defenders maintain structural advantage. When recommendations flip, that advantage erodes.

ISS 2025 standards ask: ROE ≥8% and cross-held equity reduction plan. Glass Lewis 2025/2026 asks: independent audit chair, tenure discipline, gender diversity 20% (Prime). These are peacetime maintenance, not wartime tactics.

08Caveats — Limits of These Numbers

This analysis carries necessary qualifications.

First, 17 and 36 points are Harvard 2024 aggregates; individual proposals show 5-40 point variance based on financial crisis severity, shareholder composition nuance, and proposal merit.

Second, 48% and 42% market share figures use assets-under-advice definition; proposal-count or company-count definitions may differ slightly.

Third, the "maintain peacetime governance and keep votes" model faces direct counterexample. The 2018 Goyo Intech founder-removal at 82% approval occurred because governance credibility had already collapsed over years—institutional judges had already abandoned the defense before advisors recommended opposition.

That is: advisor opposition avoidance works only when baseline governance is sound. Governance collapse opens no escape route. Law backs claims only when claim has merit.

Conclusion — Peacetime Metrics Become Wartime Votes

Restating the decoded numbers:

• ISS / Glass Lewis combined market share: 90%
• Director election opposition impact: 17 points
• Shareholder proposal opposition impact: 36 points
• Say-on-Pay opposition impact: 35 points
• Stewardship Code signatories: 235 asset managers
• GPIF assets under management: ~246 trillion yen
• ISS opposition-avoidance threshold: ROE ≥8% + cross-held ≤20% with reduction plan
• Glass Lewis 2026 Prime requirement: gender diversity 20% (Jan 2026 forward)
• Glass Lewis lead time: 20 days pre-meeting

The essential insight: vote outcomes don't begin at shareholder meetings. They begin in peacetime metrics.

Do you maintain ROE ≥8%? Is cross-held equity ≤20% with public reduction targets? Are outside director tenures managed? For Prime listing, is gender diversity 20% prepared for January 2026? Are Glass Lewis engagement meetings scheduled 20 days ahead?

Peacetime execution of these—or peacetime neglect—surfaces at voting as 17-point and 36-point swings.

Institutional vote asymmetry (defenders hold if they keep majority) only functions while those votes stay with defense. When advisors flip, the structure inverts.

This analysis describes not emergency tactics but daily practice—earnings discipline, governance metrics, IR mechanics, board composition. Their sum appears as shareholder meeting results.