Methodology
Boardminder is built on a simple premise:
If a board member's presence matters, its impact should be observable.
The Boardminder Score™ is a comparative measure of the publicly observable performance and governance context associated with a director's board service.
Data Sources
We rely exclusively on verifiable, public data, including but not limited to:
- SEC filings and proxy statements
- Board and committee disclosures
- Company financials and market performance indicators
- Governance and compensation records
No self-reported surveys. No private submissions. No subjective scoring by insiders.
How the Boardminder Score™ Works
For each board seat, Boardminder measures company performance from the director's join date through the current measurement date. The model combines five components:
Stock Performance
Annualized shareholder return during the director's tenure, measured relative to the S&P 500.
Market Capitalization Growth
The change in the company's market capitalization during the director's tenure, adjusted for the length of service.
Tenure
A tenure-based factor recognizing that a director's potential influence changes over the course of board service rather than increasing indefinitely with time.
Board Role
Additional context reflecting the director's leadership responsibilities on the board.
Governance
Governance characteristics associated with the director's board service, evaluated comparatively across the ranked population.
These measures are combined using Boardminder's proprietary scoring methodology and, where appropriate, normalized across the eligible Boardminder population to create a consistent comparative framework.
For directors serving on multiple boards, Boardminder combines their eligible seat-level results to produce an overall director score.
Tenure-Weighted Influence
Board impact is not instantaneous, nor is it infinite.
Our model applies tenure-sensitive weighting to reflect how influence may develop and evolve over the course of board service:
- Early tenure reflects onboarding and limited structural influence
- Mid-tenure reflects greater opportunity for strategic contribution
- Extended tenure is evaluated with diminishing incremental weight
This helps avoid both over-crediting newcomers and treating longevity alone as evidence of greater impact.
Normalization & Comparative Context
Where appropriate, Boardminder normalizes performance and governance measures across the eligible ranked population so that directors can be evaluated within a consistent comparative framework.
Stock performance is evaluated relative to the S&P 500, providing a common market benchmark for performance during a director's tenure.
Boardminder's methodology is comparative by design: scores are intended to be interpreted relative to the broader ranked population.
What the Score Means
Boardminder does not claim that an individual director caused a company's financial performance. Corporate outcomes reflect the actions of management, employees, boards, markets, and many other factors.
Instead, the Boardminder Score™ provides a consistent way to compare the observable performance and governance context associated with directors during their periods of board service.
It is a comparative performance index—not a measure of individual causation or a prediction of future performance.