Editor's note: Seeking Alpha is proud to welcome Daniel Alter as a new contributor. It's easy to become a Seeking Alpha contributor and earn money for your best investment ideas. Active contributors also get free access to the SA PRO archive. Click here to find out more » By Daniel Alter, Drake Raftery, and Hugo Tam Investment Summary We issue a buy recommendation on Post Holdings (NYSE:POST) with a target price of $107.63, presenting 10.83% upside potential on the opening price of $97.11 on Jan.