Method & limits
What this measures, and what it does not
The study reads what boards commit to in their filings; it cannot see what a board spends its meetings
on, so every score is a floor. Nothing here is causal and no company is named. 2026 is never shown as a finished
year: its filing season was incomplete when the study closed.
One denominator, stated once
The Fortune 1000. Every Fortune share of boards on this site is a share of the 1,000 companies on Fortune's 2026
list, ties included. A company that files no governance document with the SEC counts in the denominator and not in the
numerator.
949 boards could be scored on the four-point scale; 51 could not, 37 because they file nothing and 14 because
they disclose too little or are read for the kind of body only.
952 have a scored mandate. The consequence and mandate figures are shares of those, because they describe
what a mandate says.
Time series are counted out of the companies filing that year, as each chart states.
The Russell 3000 series has its own denominator: the Russell 3000 companies outside the
1,000, or each group of them on Explore. It is never pooled with the 1,000, and its figures are AI drafts, under review
(
section 08).
Every score traces to a quoted sentence. A stratified sample of 250 of the 955 scored companies was
re-read by one of the authors, with 93.9% agreement, and no company score is shared until it has been human-verified.
Proxy statements13,194
Every company, every year from 2011 to 2026: where oversight sits, the scale scores and the change over time.
Annual reports965
The disclosures that name who briefs the board on cyber security.
Committee charters162
Every charter that could be located, 115 of them read in full: the committee's mandate, its duties and its
authority.
How a filing becomes a score
Companies that file no governance document with the SEC, or that disclose too little,
are counted in the denominator and recorded as unplaced. Source: proxy statements (DEF 14A), annual
reports (10-K) and board committee charters of the 2026 Fortune 1000.
The four-point scale is drawn on the Overview →
The full method · every rule, source and check behind the figures
01What is measured
The unit of measurement is documented board ownership, not the quality of
oversight, and not the company's technology performance. A board can govern technology superbly and
score low here if it does not say so in a filing. The instrument is deliberately conservative: it
scores only what a reader of the public record can verify.
02How each topic is scored
Scale A · 0–3
A four-anchor ordinal scale, applied 12 times per company, once to each topic in the framework, from the company's mandate clause set: verbatim filing sentences whose subject is a named board body carrying a duty. Every bar and mean on the Findings and Sector tabs is built from it. "Owned" throughout
this site means a topic reached anchor 2 or anchor 3.
weaker evidencestronger
Why anchor 3 is asymmetric
For every topic, anchor 3 requires the duty to bite on a company-specific object: a named programme,
plan, roadmap, policy, budget or transaction. Cyber alone has a second route, a named security
framework (NIST, ISO 27001), admissible from the 10-K's mandatory cybersecurity disclosure (Item 1C),
because that is where framework disclosure lives. Anchor 1 (named without a duty) rarely fires by
construction, since the clause set itself requires a duty verb.
03How each company is classified
Scale B · 1–4
A single placement for the whole board, made once per company from the
evidence in its proxy statement, annual report and, where one could be found, its committee charter. It is
not a score of how well a board governs; it records what the board has committed to in writing. Every
headline figure on this site rests on it, and it is the part of the method that has been audited by hand.
A separate instrument, and the one most often confused with the scoring ladder above.
This is a single classification for the whole board, made once per company from structural
evidence in the filing, not a score, not an average of the topic scores, and on a different range.
It drives the "By maturity band" cut and the Oversight level spoke on every radar; it is the one human-adjudicated axis on those shapes.
Telling the two apart
Scale A runs 0–3 and fires 12 times per company, once per topic. Scale B runs
1–4 and fires once per company, for the board as a whole. A company classified at maturity 3 still carries 12 separate topic scores on scale A.
Why the scale starts at "Assigned"
An earlier draft of this scale included a lower "Ad hoc" level. It never fired: every company that
files a proxy allocates cyber oversight somewhere, so the observed floor is always a board body
with an assignment. The scale published here starts where the data starts.
04Framework & sources
The framework
Four domains, 12 topics, plus two mandate axes (breadth, of 7 topics, and
strength: decision verb, object specificity, consequence). One domain is
risk oversight, protecting existing value; three are
value creation, generating future value. The gap reported
throughout is the difference between a company's mean across those two groups.
Sources, in priority order
Where a company appears in more than one source, the stronger evidence wins.
The largest single gap
Charters state a committee's actual remit, and are the documented fix for the value-creation
floor. Coverage is …. Value-creation domains are systematically understated
for every company without one.
05Sample, exclusions & verification
The sample
…
Not a population estimate
A census of large-cap U.S. filers with machine-readable disclosure, not a random sample of
American companies. Do not extrapolate to private companies, smaller filers, or non-U.S. issuers.
Exclusions, disclosed
…
These are disclosure gaps, not governance findings: companies with no committee charter located,
no proxy statement on file and no scoreable Item 1C text, mostly mutual insurers, cooperatives
and other non-registrants. They count in every denominator on this site, so each headline is
partly a statement about what is disclosed to the SEC; the count is stated here so a reader can
see how much of any share that is.
What a charter changes
Where a charter was located and read, the picture changes materially: the single
biggest reason to treat the value-creation figures as a floor rather than an estimate.
06Six things that would change these numbers
Stated up front rather than in an appendix, because each one has a known direction
and a known size.
01 · Disclosure is a proxy for behaviour
Absence of evidence in a filing is not evidence of absence of oversight. The bias is one-way and
the direction is known: every score on this site is a floor.
02 · Charter coverage
Where a charter was read, mean value-creation score is … against
… where none was. With coverage at …, the value-creation
figures are the least settled numbers here.
03 · Two anchors are the least tested
Object specificity and consequence, two of the three strength sub-scores, are the least-exercised
anchors in the instrument and were deliberately oversampled in the reliability test. Treat
anchor-3 rates as softer than anchor-2 rates until the confirmation pass clears.
…
05 · The structure comparison is confounded
Standing-committee companies have far higher charter coverage than existing-committee companies,
so part of their apparent advantage is document access rather than governance. Flagged in place
on the Sector & structure tab. Do not publish that comparison as causal until coverage is
equalised.
06 · Structure and maturity have different denominators (limitation L10)
Since rubric v1.10 (18 September 2026) a company that files no proxy statement can be read for
the kind of body that holds technology oversight from Part III of its 10-K, but never for a
maturity level, because Part III rarely carries the mandate language the level needs. Fourteen
companies therefore carry a structure and no score by design, not by omission. Every Fortune share on
this site is nonetheless a share of the same 1,000 companies; where a table shows structure and
maturity side by side, the two numerators rest on different coverage, and the method note says so.
06bThe accuracy audit
…
07Reproducibility
Every score traces to a quoted sentence and a filing URL. The company-level record,
score, quoted mandate clause, source and grade for all 12 topics, is retained in full in the
research record and is available to reviewers on request; it is not published on this site.
Nothing on the public tabs is
computed by hand; the page is generated from the scored dataset on each build, so the figures
cannot drift from the underlying dataset without the build failing.
08The Russell 3000 series
AI drafts, under review
…
What is read, and how much of it
For each company: its latest proxy statement, the cybersecurity disclosure (Item 1C) in its latest
annual report and, where one could be located, its technology committee's charter. That is one year of filings,
not the 2011 to 2026 history read for the Fortune 1000. A board's mandate is read from the strongest source it has.