Teacher Retirement System of Texas buys Rayonier Advanced Materials stock By: MarketMinute.com Stock News March 27, 2018 at 19:24 PM EDT Teacher Retirement System of Texas purchased 17,945 shares of Rayonier Advanced Materials Inc. (NYSE: RYAM). The stock price climbed $1.66 to close at $21.13. Related Stocks: Rayonier Advanced Materials Inc