First Horizon National Corporation (“FHN”) declared a 3.0615% Stock Dividend to FHN Shareholders. The Ex-distribution Date will be Wednesday, September 10, 2008. The Payable Date is October 1, 2008. The Record Date is September 12, 2008.

This corporate event will be coordinated with the Options Clearing Corporation.

The forecasted effect of the upcoming corporate event on each clearing firm’s positions can be viewed in infopac in the Corporate Event Initial Forecast Report (ONE712), the Corporate Event Final Forecast Report (ONE713), and the Corporate Event Forecast Audit Report (CPDBU710).

The details after the corporate event has been applied can be viewed in the Corporate Event Activity Report (ONE711).

If you have any questions regarding the information provided in the document, please call CME Clearing Risk Management hotline at (312) 648-3888.

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