billion between July 1, 2004, and May 31, 2007. But while Goldman was praised for its foresight, some argued its bets against the securities it created gave it a vested interest in their failure. These securities performed very poorly for the long investors and by April 2010, at least US$5 billion worth of the securities either carried "junk" ratings or had defaulted. One CDO examined by critics which Goldman bet against but also sold to investors, was the $800 million Hudson Mezzanine CDO issued in 2006. In the Senate Permanent Subcommittee hearings, Goldman executives stated that the company was trying to remove subprime securities from its books. Unable to sell them directly, it included them in the underlying securities of the CDO and took the short side, but critics McLean and Nocera complained the CDO prospectus did not explain this but described its contents as "'assets sourced from the Street', making it sound as though Goldman randomly selected the securities, instead of specifically creating a hedge for its own book". The CDO did not perform well, and by March 2008 – just 18 months after its issue – so many borrowers had defaulted that holders of the security paid out "about US$310 million to Goldman and others who had bet against it". Goldman's head of European fixed-income sales lamented in an e-mail made public by the Senate Permanent Subcommittee on Investigations, the "real bad feeling across European sales about some of the trades we did with clients" who had invested in the CDO. "The damage this has done to our franchise is very significant." 2010 SEC civil fraud lawsuit In April 2010, the U.S. Securities and Exchange Commission (SEC) charged Goldman Sachs and one of its vice-presidents, Fabrice Tourre, with securities fraud. The SEC alleged that Goldman had told buyers of a synthetic CDO, a type of investment, that the underlying assets in the investment had been picked by an independent CDO manager, ACA Management. In fact, Paulson & Co. a hedge fund that wanted to bet against the investment had played a "significant role" in the selection, and the package of securities turned out to become "one of the worst-performing mortgage deals of the housing crisis" because "less than a year after the deal was completed, 100% of the bonds selected for Abacus had been downgraded". The particular synthetic CDO that the SEC's 2010 fraud suit charged Goldman with