Tyson Foods Inc. /zigman2/quotes/201117502/composite TSN +0.54% said Thursday that it has invested in San Francisco-based plant-based shellfish company New Wave Foods. The food company, which brands include Jimmy Dean, Hillshire Farm and Ball Park, said it made the investment through its corporate venture subsidiary Tyson Ventures. Tyson said New Wave Foods plans to have a shrimp alternative ready for food service operators in early 2020. The announcement comes about three months after Tyson introduced new plant-based nuggets and "blended" burgers, which are made with a combination of meat and plants. Tyson's stock, which slipped 0.4% in afternoon trading, has gained 6.4% over the past three months. In comparison, Beyond Meat Inc's stock /zigman2/quotes/211617595/composite BYND -0.81% has shot up 60% over the past three months and the S&P 500 /zigman2/quotes/210599714/realtime SPX +0.06% has tacked on 5.4%.