NZX Clearing has a new website, which will be replacing this website.
You can access the new NZX Clearing website here.
The SPAN© parameter file prepared at the end of each business day can now be accessed here.
Current and historical margin rate circulars can be accessed here.
This website will be decommissioned in due course.

NZX, through its subsidiary companies operates a Clearing House and a related Central Securities Depository, which is essential infrastructure for New Zealand's financial markets. The Clearing House manages trading risks, providing a new era of transparency and efficiency in New Zealand's capital markets. It also enables a broader set of products to be traded, including derivatives.