“ How often are the index components updated? For instance, NZX50 currently out of date in that it now includes XERO. ”

Eoin Treacy's view Thank you for bringing this to our attention. We share the equity database with our sister service Investors Intelligence. They continually monitor the indices they use for their daily breadth reports for changes to constituent data. Indices that fall outside these breadth reports do not have a dedicated person monitoring their constituents. I have updated the constituents of the New Zealand Fully Gross 50 Index as currently displayed on Bloomberg.