Fast-food chain Wendy's shares surged over 40% on Wednesday to hit $9, the highest in around seven months, following a recent Reddit-fuelled meme-stock frenzy. The highly shorted stock had the second-highest mentions over the last 24 hours ​on Reddit forum r/WallStreetBets, Reuters reported, citing SwaggyStocks. The stock had lost nearly half its value over the past year.