Verizon Communications agreed to buy Yahoo for $4.8bn (£4bn), but disclosure of a huge data breach put a question mark over the deal.
In the quarter to 30 September, Yahoo's profits rose to $163m, from $76.3m last year, on revenue up 6.5% to $1.3bn.
Chief executive Marissa Mayer said the figures underlined Yahoo's value.
"We remain very confident, not only in the value of our business, but also in the value Yahoo products bring to our users' lives," she said in a statement.
