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Do boards with more professional credentials deliver better returns and governance?
Comparing median 1-year returns for boards ranked by average qualifications per director
Note: This analysis is based on 117 issuers with both qualification and performance data. Correlation does not imply causation — many factors influence returns. Sample sizes are small, so differences may not be statistically significant.
Comparing boards that have at least one director with a specific credential vs those without
| Credential | With (n) | Without (n) | Median 1Y (With) | Median 1Y (Without) | Median GRS (With) | Median GRS (Without) | Median ROE (With) | Median ROE (Without) |
|---|---|---|---|---|---|---|---|---|
| Chartered Accountant (CA) | 40 | 77 | +0.2% | -8.0% | 82.8 | 79.3 | 7.9% | 4.1% |
| IoD / AICD Governance (1+) | 91 | 34 | -6.0% | -2.2% | 81.4 | 79.2 | 6.1% | 5.8% |
Boards with 3+ IoD-designated directors show meaningfully better governance scores. Based on 243 directors with IoD/AICD designations across the NZX.
The data suggests a threshold effect: having 1-2 IoD members shows modest improvement, but boards with 3+ IoD-designated directors show a step-change in governance scores. This may indicate that governance training becomes effective when it reaches a critical mass on the board.
Do boards with more credentials tend to score higher on governance?
Top 30 issuers by credential density, with returns and governance scores
This page correlates board-level qualification density with company financial performance and governance scores. Qualification data is extracted from NZX AGM pre-meeting notices and annual reports. Performance metrics use 1-year and 3-year total returns. Governance scores use our proprietary GRS methodology.
Credential types: Governance (IoD NZ CFInstD/CMInstD, AICD GAICD/FAICD), Professional (CA, CPA, CFA, FCIS), Academic (BCom, MBA, LLB, PhD). Only issuers with 2+ current directors and at least one recorded qualification are included.
Limitations: Qualification coverage is incomplete (1226 records across 726 directors). Correlation does not imply causation. Many confounding factors (sector, size, market conditions) affect returns. Results should be interpreted as exploratory, not prescriptive.
Which NZX boards lack legal (LLB), accounting (CA/CFA), governance (CFInstD/GAICD), or engineering (BE) expertise? Identify missing credential categories for board recruitment.
Shared university ties among NZX directors — alumni clusters on boards, university representation, and sector patterns.
Which universities produce the best-performing directors? Compare alpha, board fees, and tenure by alma mater
Data sourced from NZX AGM notices, performance metrics, GRS scores. Our datasets may not be complete. Automated analysis can produce errors. If you believe any data on this page is incorrect, please contact us at hello@nzxplorer.co.nz.
For informational purposes only. Not investment advice.
| 3.3 |
| 5 |
| 4 |
| 14 |
| -1.6% |
| 86.2 |
| 7.2% |
RYM RYM Ryman Healthcare Limited | 7 | 19 | 2.7 | 6 | 1 | 12 | -32.1% | 82.1 | -4.2% |
2CC 2CC 2 Cheap Cars Group Limited | 3 | 8 | 2.7 | 2 | — | 6 | +50.0% | 79.3 | 14.4% |
PGW PGW PGG Wrightson Limited | 8 | 19 | 2.4 | 1 | 5 | 13 | -3.7% | 85.9 | — |
RYM RYM Ryman Healthcare Limited | 8 | 19 | 2.4 | 3 | 2 | 14 | +44.1% | 63.5 | 1.7% |
EBO EBO EBOS Group Limited | 7 | 15 | 2.1 | 2 | 2 | 11 | -10.9% | 83.5 | 7.9% |
WBC WBC Westpac Banking Corporation | 11 | 23 | 2.1 | 5 | 3 | 15 | -9.0% | 68.3 | 9.5% |
MLN MLN Marlin Global Limited | 4 | 8 | 2 | 2 | 1 | 5 | -23.7% | 92.0 | — |
KFL KFL Kingfish Limited | 4 | 8 | 2 | 2 | 1 | 5 | -9.4% | 90.4 | 8.7% |
KFL KFL Kingfish Limited | 4 | 8 | 2 | 2 | 1 | 5 | -15.0% | 87.2 | 0.2% |
SAN SAN Sanford Limited | 7 | 14 | 2 | — | 3 | 11 | +40.9% | 81.4 | 25.8% |
FBU FBU Fletcher Building | 7 | 14 | 2 | 2 | 1 | 11 | -9.9% | 89.7 | 5.8% |
ARG ARG Argosy Property Limited | 8 | 15 | 1.9 | 1 | 2 | 12 | -11.9% | 79.3 | 9.6% |
RAD RAD Radius Residential Care Limited | 7 | 13 | 1.9 | 2 | 3 | 8 | +5.7% | 81.4 | — |
BGP BGP Briscoe Group Limited | 7 | 13 | 1.9 | 4 | — | 9 | -1.6% | 86.2 | 4.0% |
WIN WIN Winton Land Limited | 5 | 9 | 1.8 | 1 | — | 8 | -40.0% | 73.1 | 1.9% |
MEE MEE Me Today Limited | 7 | 12 | 1.7 | — | 2 | 10 | +39.0% | 80.0 | 106.0% |
MKR MKR Manuka Resources Limited | 3 | 5 | 1.7 | — | — | 5 | -60.0% | 62.8 | -115.5% |
TGG TGG T&G Global Limited | 6 | 10 | 1.7 | 2 | 1 | 7 | -18.6% | 72.7 | 3.1% |
OCA OCA Oceania Healthcare Limited | 7 | 11 | 1.6 | — | 1 | 10 | -19.8% | 87.6 | 4.8% |
SCT SCT Scott Technology Limited | 8 | 13 | 1.6 | 4 | 2 | 7 | +10.2% | 82.8 | 11.0% |
NZK NZK New Zealand King Salmon Investments Limited | 9 | 14 | 1.6 | 1 | 2 | 11 | +17.1% | 72.8 | 6.8% |
TGG TGG T&G Global Limited | 4 | 6 | 1.5 | 1 | — | 5 | -2.3% | 90.4 | — |
SUM SUM Summerset Group Holdings Limited | 8 | 12 | 1.5 | 3 | — | 9 | -35.8% | 84.8 | 7.8% |
WHS WHS The Warehouse Group Limited | 6 | 9 | 1.5 | 1 | — | 8 | -16.9% | 83.5 | -0.8% |
SPN SPN South Port New Zealand Limited | 7 | 10 | 1.4 | — | — | 10 | -11.0% | 76.5 | 9.3% |
ARB ARB ArborGen Holdings Limited | 7 | 10 | 1.4 | 1 | 2 | 7 | -50.4% | 66.9 | -6.3% |
FCG FCG Fonterra Co-operative Group Limited | 9 | 13 | 1.4 | — | — | 13 | +63.5% | 75.9 | 41.6% |
IFT IFT Infratil Limited | 7 | 10 | 1.4 | — | 1 | 9 | +9.6% | 84.0 | 6.7% |