misleading investors with was called Abacus 2007-AC1. Unlike many of the Abacus securities, 2007-AC1 did not have Goldman Sachs as a short seller, in fact, Goldman Sachs lost money on the deal. That position was taken by the customer (John Paulson) who hired Goldman to issue the security (according to the SEC's complaint). Paulson and his employees selected 90 BBB-rated mortgage bonds that they believed were most likely to lose value and so the best bet to buy insurance for. Paulson and the manager of the CDO, ACA Management, worked on the portfolio of 90 bonds to be insured (ACA allegedly unaware of Paulson's short position), coming to an agreement in late February 2007. Paulson paid Goldman approximately US$15 million for its work in the deal. Paulson ultimately made a US$1 billion profit from the short investments, the profits coming from the losses of the investors and their insurers. These were primarily IKB Deutsche Industriebank (US$150 million loss), and the investors and insurers of another US$900 million – ACA Financial Guaranty Corp, ABN AMRO, and the Royal Bank of Scotland. The SEC alleged that Goldman "materially misstated and omitted facts in disclosure documents" about the financial security, including the fact that it had "permitted a client that was betting against the mortgage market [the hedge fund manager Paulson & Co.] to heavily influence which mortgage securities to include in an investment portfolio, while telling other investors that the securities were selected by an independent, objective third party", ACA Management. The SEC further alleged that "Tourre also misled ACA into believing ... that Paulson's interests in the collateral section [sic] process were aligned with ACA's, when, in reality, Paulson's interests were sharply conflicting". In reply, Goldman issued a statement saying the SEC's charges were "unfounded in law and fact", and in later statements maintained that it had not structured the portfolio to lose money, that it had provided extensive disclosure to the long investors in the CDO, that it had lost $90 million, that ACA selected the portfolio without Goldman suggesting Paulson was to be a long investor, that it did not disclose the identities of a buyer to a seller, and vice versa, as it was not normal business practice for a market maker, and that ACA was itself the largest purchaser of the Abacus pool, investing US$951 million. Goldman also stated that any investor losses resulted from the overall