Coke stock is up 16%, easily beating the 5.5% loss in the S&P 500, while Pepsi is down 12%. That is counterintuitive because the companies are often considered together and viewed as rivals. But they ...

Coke Zero vs. Pepsi Zero: Both sodas want your drink dollars. I remember the original Pepsi Challenge, back in 1975, when Pepsi shook the soft-drink world to its fizzy, caramel-colored core by ...

Pepsi is asking people out and about in Atlanta to sip from unmarked cups of Pepsi Zero Sugar and Coca-Cola Zero Sugar to decide which they prefer.