Did Tyson Foods’ (TSN) announced plans to “stop using high fructose corn syrup and other ingredients in its branded products” change the long-term investment outlook for the US corn market? That was the key question we were left to ponder over the weekend. The announcement was posted on the company’s website last Monday (September 15), and when the trading week was through the December corn futures contract closed at $4.24, down 6.0 cents for the week, while the December-March futures spread closed at a ca ...