Wendy's premarket volume beat out Intel and Micron on Wednesday. A fast-food chain that hit a 13-year low of $6.07 the day before was suddenly the most chaotic tape on Wall Street. A viral r/WallStreetBets post titled 'We need to save Wendy's' sparked the frenzy, amplified by the stock's 26% short float and a new CFO appointment announced the day before.