NZX Ownership Concentration Report

Shareholder register analysis across NZX-listed companies, inspired by NZSA's shareholder concentration data. Total shareholders extracted from annual report statutory sections. Coverage: 107/131 companies (82%).

Companies Covered

107/131

Total NZX Shareholders

1,341,261

Median Register Size

3,093

Data Gaps

Shareholder Register Analysis

Sorted by total shareholder count. Source: annual report statutory shareholder information sections.

Company	Sector	Total Shareholders	Mkt Cap ($m)	Top 20%	Top 5%	Largest Holder	HHI	Directors	Independent
NZMNZME Limited	Communication Serv...	196,011	$211m	71.4%	53.9%	Citicorp Nominees Pty Limited(21.2%)	897	-	-
AFIAustralian Foundation Investme...	Financials	157,923	$10226m	11.6%

Average Shareholders by Sector

Sector	Companies	Avg Shareholders	Total Shareholders
Communication Services	2	100,731	201,462
Utilities	7	34,452	241,161
Financials	15	24,786	371,796
Materials	4	11,657	46,628
Industrials	19	10,499	199,488
Consumer Staples	14	7,852	109,923

Data Gaps (24 companies)

These companies are missing total shareholder counts. Annual report PDFs are either not in the announcements database, truncated before the statutory shareholder section, or filed as bond/debt issuers without equity shareholder data.

UVA BIF MKR CO2 BIT MEX FCT RGI AFC SUM HFL LOC

Methodology

Total shareholdersare extracted from the statutory “Spread of Shareholders” or “Analysis of Shareholder” section of annual reports, as required under NZX Listing Rules. Extraction uses regex pattern matching on PDF text, with Claude Haiku AI fallback for complex formats.

Top 20 shareholders data comes from the annual report top-20 register disclosure. Top 5% and Top 20% represent the aggregate holding of the 5 and 20 largest shareholders respectively.

HHI (Herfindahl-Hirschman Index) measures ownership concentration among the top 20 holders. Higher values indicate more concentrated ownership. Above 2,500 is considered highly concentrated.

Director counts reflect current board members (where resignation_date is null). Independence is based on the NZX-disclosed independence status.

Related Insights

Ownership Intelligence

NZX shareholder concentration analysis: top-20 block holders, HHI concentration index, nominee vs institutional vs individual ownership, and year-over-year ownership changes across 100+ companies.

Peer Ownership Comparison

Which fund managers hold multiple companies in the same NZX sector? Identify common institutional owners across sector peers for IR roadshow targeting and understanding institutional capital allocation.

Substantial Holder Change Tracker

Track 5%+ ownership changes across NZX-listed companies. Increases, decreases, initial disclosures, and ceased holdings from classified SPH notices — most active holders, most targeted companies, sector breakdown.

Data sourced from publicly available records. 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.