Wendy's shares jumped more than 30 per cent in a single session after Reddit traders launched a 'save Wendy's' campaign, turning the burger chain into the latest stock swept up in the meme‑stock boom. The surge, fuelled by a viral post on r/WallStreetBets and a rush of retail buying, has reignited questions over how far social‑media momentum can move markets regardless of concerns about the company's underlying business.