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Standard & Poor’s Affirms SIX Group's AA- Credit Rating

Date 19/12/2011

The rating agency Standard & Poor’s has affirmed SIX Group's AA- creditrating, reflecting SIX Group's diverse operations and effective risk management. Securities services providers, SIX SIS Ltd and SIX x-clear Ltd, which are regulated as banks, each received an AA rating.

For the second time since 2010, SIX Group, the internationally active provider of financial market infrastructure and services, has commissioned well-knownrating agency, Standard & Poor’s (S&P), to rate the entire enterprise as well asevaluate SIX Group's individual subsidiary companies.

Once again, S&P awarded its AA- credit rating to SIX Group. Group companies, SIX SIS Ltd and SIX x-clear Ltd, which provide securities services and are regulated as banks, were each reassigned an AA rating.

In its rationale, S&P highlighted SIX Group's pivotal role as Switzerland’s financial market infrastructure operator, its solid balance sheet structure and strong capital base, sound risk management and high level of diversification, which reduces the Group’s reliance on the capital market.

Stefan Mäder, CFO SIX Group, commented as follows: “We are extremely proud that S&P has affirmed our high rating in such a tough economic climate. This high rating is not just important to us as the backbone of the Swiss financialmarketplace, but to market players as well."