MKM Partners analyst Harry Fong keeps his Buy rating and $55 price target on Assured Guaranty, saying that investors should take advantage of the 3% decline in the stock price afterhours following a negative view taken by Greenlight Capital's David Einhorn at the Ira Sohn conference. Fong says Einhorn's model of a $2.8B implied loss on the company's Puerto Rico exposure is inaccurate as it has already established a significant loss reserve for Puerto Rico that is likely to be over $1B. The analyst adds that "the company has no liquidity issue of any significance as its debt service payments are stretched out over many years".