NEW YORK (Standard&Poor's) April 30, 2010--Standard&Poor's Ratings Services today lowered its rating on Bank of Nova Scotia's C$98.465 million portfolio credit-linked note, a synthetic corporate investment-grade collateralized debt obligation (CDO) transaction. We lowered our rating to 'D' from 'CCC-' because the note incurred a partial loss. RELATED CRITERIA AND RESEARCH "CDO Spotlight: Surveillance Primer—What Drives Synthetic CDO Rating Changes?" published Feb. 27, 2007. "Criteria Structured Finance CDOs: Criteria For Rating Synthetic CDO Transactions: Description Of A Synthetic CDO Transaction," published Sept. 1, 2004. "Criteria Structured Finance CDOs: Criteria For Rating Synthetic CDO Transactions: Timely Payment Of Interest And Ultimate Payment Of Principal ," published Sept. 1, 2004. "Criteria Structured Finance