Yahoo Reports a Sharp Decline in Revenue From Display and Search Advertising - NYTimes.com

Yahoo's stock is up ~70% since Marissa Mayer joined as CEO a year ago, although its core business continues to struggle

"Despite the slow ad sales, Yahoo reported that net income in the quarter rose 46 percent from the same period of 2012, to $331 million, or 30 cents a share, primarily on the growth in its investment holdings. Revenue over the same period fell 7 percent, to $1.14 billion, falling slightly short of Wall Street expectations and underscoring the company’s trouble with reviving growth in its core advertising business."

Yahoo Reports a Sharp Decline in Revenue From Display and Search Advertising - NYTimes.com