Zoetis (ZTS +0.5%) says it's joining the S&P 500 index, after Pfizer (PFE) splits off its...

|About: Zoetis (ZTS)|By:, SA News Editor

Zoetis (ZTS +0.5%) says it's joining the S&P 500 index, after Pfizer (PFE) splits off its remaining 80% stake in the animal-medicine company. It will replace First Horizon (FHN), which is replacing QLogic (QLGC) in the S&P MidCap 400 index.