After-hours buzz: Freeport-McMoRan, Splunk & more By: CNBC.com News August 27, 2015 at 17:32 PM EDT Check out the companies making headlines after the bell Thursday: Freeport-McMoRan, Splunk, GameStop & more. Read More >> Related Stocks: Autodesk Freeport-McMoRan GameStop Corp Splunk Inc Ulta Beauty Inc