Tree.com Inc., which runs the LendingTree lead-generation site and a mortgage lender, said its second-quarter profit fell 76% from the first quarter, to $700,000, or 7 cents a share, as it invested in an advertising campaign.

Revenue rose 6% compared with the year-earlier period, to $61 million, buoyed by refinancing volume, Tree.com said Thursday. However, Doug Lebda, the Charlotte company's chairman and chief executive, said in a press release that "we have begun to see the fall-off in refinance volume that we have been predicting for some time now" as interest rates begin to climb.

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