Shares of Jack in the Box fell 6% after activist investor Sardar Biglari signaled potential changes at the fast-food chain. Biglari increased his stake to 9.9% and became an activist investor, possibly pushing for operational changes. The company recently implemented a turnaround plan called “JACK on Track” to improve performance. The market reacted to the news, indicating it was significant but not fundamentally changing. Jack in the Box’s shares are down 48.5% this year and trading 64.9% below its 52-week high. Investors who bought shares 5 years ago would see a significant decrease in value.

Read more at StockStory: Why Jack in the Box (JACK) Stock Is Down Today