Capital One Financial Corp. swung to a GAAP net loss of $4.3 billion, or $8.58 a share, for the quarter ended 30 June after building $11.43 billion of credit-loss reserves tied largely to its May takeover of Discover. The charge eclipsed a 25% jump in net revenue to $12.49 billion and pushed the bank into the red even as adjusted earnings rose to $5.48 a share, comfortably above analyst expectations. The Discover acquisition expanded Capital One’s balance sheet, lifting period-end loans 36% to $439.3 billion and deposits 27% to $468.1 billion. Net interest margin widened to 7.62% and the Common-equity Tier 1 capital ratio remained at 14%, above regulatory minimums. “We’re fully mobilized and hard at work on integration, which is going well,” Chief Executive Officer Richard Fairbank said in a statement.