Yahoo CEO tries to reassure mobile partners amid turmoil

SAN FRANCISCO (AP) — Yahoo CEO Marissa Mayer found herself in an awkward situation Thursday at the struggling Internet company's annual conference for the makers of mobile apps.

Mayer's job security is shaky because Yahoo's stock has sunk by more than 40 percent since the end of 2014, reflecting Wall Street's frustration with her inability to deliver on her promise to revive Yahoo's revenue growth.

None of Yahoo's apps are among the Top 70 in Apple's app store for the iPhone and its share of the mobile ad market remains small even though its revenue from smartphones and tablets is rapidly rising.

Cheetah Mobile, a maker of device management apps such as Clean Master, has been impressed with its results since it started working with Yahoo, said marketing head David Wu.