Corporate Event Notice CE13-36

DATE: February 26, 2013
Partial Tender Offer  ***EXTENDED***
Offer Expires: March 20, 2013

Attached, for your information is an important memo from the Options Clearing Corporation.

We urge you to read this (see link) and distribute to others within your organization you deem appropriate.

If clicking on the link above does not work, then copy and paste into your browser.

Key Information:

Offer Price $4.00 net cash per share
Offer Expires 5:00 P.M., New York City Time, on Wednesday, March 20, 2013, unless extended (formerly February 25, 2013)