Qualcomm's stock falls after report says company faces US anti-trust case (QCOM)

Chipmaker Qualcomm's stock dropped as much as 4% on Tuesday after the FTC filed an anti-trust complaint against the company.
Qualcomm's chips appear in just about every major mobile device in the world. The FTC alleges that Qualcomm used anticompetitive tactics when licensing its technology. The FTC also claimed that Qualcomm paid Apple billions of dollars in rebates to use its chips in the iPhone and iPad.
Qualcomm vigorously refuted the premise of the FTC's claims against it, sa