Simply Good Foods (SMPL) shares fell 5.61% following a reshuffle of its index memberships. The company exited several Russell growth benchmarks and joined the Russell 2000 Dynamic Index.

The stock’s one-year total shareholder return shows a 58.96% decline. Recent performance reflects a 30-day positive return of 8.54%.

Investors are monitoring the company’s ability to execute brand strategies to justify its valuation. Key focus areas include the growth of the OWYN brand and the recovery of the Atkins line.