Performance Bond Requirements: CDS Products- Effective Friday, July 8, 2011

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As per the normal review of market volatility to ensure adequate collateral coverage, the Chicago Mercantile

Exchange Inc., Clearing House Risk Management staff approved the performance bond requirements for the

following products listed below.

The rates will be effective after the close of business on

Friday, July 8, 2011.

The CDS products will be margined through the CME multi-factor margin model that now utilizes six factors to assess the risk exposures of the products and then aggregates those factors and compares them to portfolio minimum amounts to arrive at the total maintenance margin amount. Initial margin will be calculated at 1.1x the maintenance margin.

For the full text of this advisory, please click here.