LOS ANGELES--(BUSINESS WIRE)--Today, Post Advisory Group (Post) announced Henry Chyung, chief investment officer, will retire at the end of 2019 after 12 years with the firm. At that time, he will transition to a senior advisor role for one additional year and remain through the end of 2020. Deputy chief investment officer Jeffrey Stroll will assume the role of chief investment officer at the end of 2019, sharing responsibilities with Chyung until that time. As part of the leadership succession