Generac Holdings Inc (NYSE:GNRC) stock was last seen up 2.3% at $140.11, after Wells Fargo upgraded the power generator to "overweight" from "equal weight," with a price-target hike to$195 from $186. The firm cited AI data center growth, seeing an opportune buying opportunity after the shares' recent slide. GNRC notched its fifth-straight daily loss yesterday, still down 13.1% since the start of this week. The stock fell below several long-term trendlines during the tumble, now underneath all moving averag ...