AM Best said the A+ (superior) financial strength rating for Swiss Re and its core subsidiaries would remain unchanged following the announcement of its acquisition of CAN Financial Corporation's book of life insurance business.

The ratings said the outlook for Swiss RE's ratings remained stable following the deal, which is subject to regulatory approval.

AM Best said the US transaction was in line with Swiss RE's strategy of expanding its Admin Re portfolio, where it acquires companies or block of business for run-off.