Changes to the OMX Stockholm 30 index rules

The OMX Stockholm 30 (OMXS30) index rules have been revised. The revision is
based on feedback from market participants. 

Effective October 25, 2010 the following changes will be applied: 

1.4.2 Inclusion Method, Valuation Method and Fixed Price Method
A minor change has been made to the Inclusion Method so that it harmonizes with
the formulation in the Derivatives rule book. There is no set time limit to
when the extra index share must be registered with or listed with the Exchange
in order for the method to be used. However, the method will be applied with
prudence in a case by case manner. 

1.4.5 Dividends
A minor change has been made to the rule so that the Exchange is given the
opportunity to have an opinion on whether a dividend should be considered as
ordinary or non-regular. 

The updated rules are attached to this notice and will also be made available
on at https://indexes.nasdaqomx.com 

For further information concerning this notice please contact Michael Olsson or
Ida Gustavsson, telephone + 46 8 405 6296, e-mail index@nasdaqomx.com