GENERAL: NZX: NZX Index update

5 Mar 2010 4:40 pm

NZX 05/03/2010 GENERAL

REL: 1640 HRS NZX Limited

GENERAL: NZX: NZX Index update

5 March 2010 - Following our Index Update of 22 February 2010, NZX is conducting a review of the processes relating to the preparation and release of changes in the Index constituents and weighting of such constituents, on a monthly and a quarterly basis. The initial changes resulting from the review to date are as follows:

1. NZX Indices will no longer prepare or release any Preliminary Index memos. The only index memo released will be the final index memo;

2. For Quarterly Index memos the release for the Index memo will allow for seven trading days to take place prior to any actual change in the Index occurring; and

3. For Monthly Index memos the release will allow for five trading days to take place prior to any actual change in the Index occurring.

NZX is also conducting a review of Index methodology. The areas being assessed for Index methodology rules include, but are not limited to: Liquidity Criteria; Trading History (length of time required for eligibility); fast track inclusion criteria and share price floors.

The methodology review will be conducted over the next 30 business days, and a consultation draft on any proposed changes released for feedback at that time. End CA:00192166 For:NZX Type:GENERAL Time:2010-03-05:16:40:56

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