TMXgroup

October 28, 2011

TORONTO October 28, 2011 - S&P Indices and TMX announced today the launch of an Equal Weight version of the S&P/TSX Composite Index providing Canadian investors with a new and innovative approach to tracking the performance of the principal broad-based index for the Canadian market.

"The S&P/TSX Composite Equal Weight Index is designed to meet clients' needs for benchmarking strategies that require a size-neutral index compatible with the S&P/TSX Composite Index. An equally weighted index provides investors with a tool that will enable size, style, and sector comparison," says Abigail Etches, Director at S&P Indices.

The S&P/TSX Composite Equal Weight Index is the headline index in the S&P/TSX Equal Weight Index Family. In 2009, S&P Indices introduced the S&P/TSX Equal Weight Indices, which are made up of a series of equal weighted headline and industry indices. The index calculations are determined according to the divisor-based methodology applied to the S&P/TSX Indices.

As a result of equal weighting, the S&P/TSX Composite Equal Weight Index tends to have a higher exposure to sectors with small companies than the S&P/TSX Composite Index. Relative performance of the two indices will also differ due to different sector exposure and risk and return profiles in different market cycles.

For more information about the S&P/TSX Composite Equal Weight Index, please visit: www.standardandpoors.com/indices.

About S&P Indices

S&P Indices, a leading brand of the McGraw-Hill Companies (NYSE:MHP), maintains a wide variety of investable and benchmark indices to meet an array of investor needs. Over $1.25 trillion is directly indexed to Standard & Poor's family of indices, which includes the S&P 500, the world's most followed stock market index, the S&P/Case-Shiller Home Price Indices, the leading measure of U.S. home prices, the S&P Global BMI, an index with approximately 11,000 constituents, the S&P GSCI, the industry's most closely watched commodities index, and the S&P National AMTFree Municipal Bond Index, the premier investable index for U.S. municipal bonds. For more information, please visit: www.standardandpoors.com/indices.

About TMX Group (TSX-X)

TMX Group's key subsidiaries operate cash and derivative markets for multiple asset classes including equities, fixed income and energy. Toronto Stock Exchange, TSX Venture Exchange, TMX Select, Montreal Exchange, Canadian Derivatives Clearing Corporation, Natural Gas Exchange, Boston Options Exchange (BOX), Shorcan, Shorcan Energy, Equicom and other TMX Group companies provide listing markets, trading markets, clearing facilities, data products and other services to the global financial community. TMX Group is headquartered in Toronto and operates offices across Canada (Montreal, Calgary and Vancouver), in key U.S. markets (Houston, Boston and Chicago) as well as in London. For more information about TMX Group, visit our website at www.tmx.com.

Standard & Poor's does not sponsor, endorse, sell or promote any S&P index-based investment product. This document does not constitute an offer of services in jurisdictions where Standard & Poor's or its affiliates do not have the necessary licenses. Standard & Poor's receives compensation in connection with licensing its indices to third parties. It is not possible to directly invest in an index.

For more information please contact:

David R. Guarino
Standard & Poor's
Communications
212-438-1471
dave_guarino@standardandpoors.com

Carolyn Quick
Director, Corporate Communications
416-947-4597
carolyn.quick@tmx.com

Abigail Etches
Standard & Poor's
Director - S&P Indices Canada
416-507-3203
abigail_etches@standardandpoors.com