Companies involved in the recreational cannabis industry have been excluded from the $37 billion NZ Super Fund.
The exclusion does not include companies involved with licensed and authorised medicinal cannabis, the fund said.
The move followed a growing global trend to decriminalise and legalise the recreational use of cannabis, which had led to sharemarket listings of companies involved in the industry, it said.
Under the Guardians' Responsible Investment Framework, decisions about ethical exclusions took account of New Zealand law and international conventions to which New Zealand is a signatory.
Recreational use of cannabis is currently illegal in New Zealand under the Misuse of Drugs Act 1975, and contrary to New Zealand's commitments to international drug conventions.