Wall Street's total price tag on settlements with U.S. securities regulators for allegedly misleading investors about mortgage bonds churned out ahead of the financial crisis surged past $1 billion with a deal by Citigroup Inc. to pay $285 million ... to end civil-fraud charges by the Securities and Exchange Commission. The SEC claimed Citigroup sold slices of the $1 billion mortgage-bond deal without disclosing to investors that the bank was shorting $500 million of the deal, or betting its assets would lose value. Several Wall Street firms have settled similar claims by the SEC, which has generally stuck to the strategy used by the agency to get a $550 million settlement last year with Goldman Sachs Group Inc.. And the SEC's investigation of the Wall Street mortgage machine isn't over yet. Lorin Reisner, deputy enforcement director at the SEC, said civil mortgage-related cases against Goldman, J.P. Morgan Chase & Co., Countrywide Financial Corp., New Century Financial Corp. and other companies read like an index to unlawful conduct in connection with the financial crisis." The SEC has collected a total of $1.03 billion through mortgage-bond-deal settlements. In addition to Citigroup, the total includes Goldman, J.P. Morgan, Royal Bank of Canada, Wells Fargo & Co. and Credit Suisse Group AG.