Shares of Sinclair Broadcast Group roared an inexplicable 35% on Monday, the biggest one-day gain in 10 years that pushed the stock to a record high. The jump came after the TV broadcasting company's deal to buy 21 regional sports networks from Disney was reported Friday.
Background: Selling the sports networks was a condition of Disney's $71.3 billion acquisition of Fox's major entertainment assets.
"While consumer viewing habits have shifted, the tradition of watching live sports and news remains ingrained in our culture," Sinclair CEO Chris Ripley said, according to Barron's.
What to watch: The deal got Sinclair a bullish upgrade from B. Riley FBR analyst Zack Silver, but Monday's price action sent share prices well above his $57 price target.