From that point through Tuesday, the day before news of the deal with Shuanghui, the company's shares had fallen 14%, trailing badly the performance of such rivals as Tyson Foods Inc.

WSJ: Smithfield CEO Declares Victory

Among the largest underlying components of FXG, in trading today Tyson Foods, Inc. ( NYSE: TSN) is up about 0.1%, Smithfield Foods, Inc. ( NYSE: SFD) is up about 0.8%, and Ingredion Inc ( NYSE: INGR) is higher by about 1.1%.

FORBES: FXG, TSN, SFD, INGR: Large Outflows Detected at ETF