Today's Pre-Market Stock Movers: SBUX, AMD, PACW, LLY and More

$Pearson (PSO.US)$ +8% (Pearson shares popped more than 8%. The stock was double upgraded to buy from underperform by Bank of America, which said Tuesday's sell-off in the stock, which followed a sharp decline in Chegg amid AI worries, was "overly harsh.")

$Generac (GNRC.US)$ +6% (The energy technology company gained 6.5% after quarterly earnings beat analyst expectations. Generac reported an adjusted 63 cents per share against an expected 48 cents, according to StreetAccount.)

$Chegg (CHGG.US)$ +6% (Shares of the online book renter regained 6.2% on Wednesday after falling as much as 48% a day earlier. The company noted concern of the rise of artificial intelligence as a threat to the core business on its earnings call. CEO Dan Rosensweig also said that the panic that sent the stock plunging was extraordinarily overblown.)

$Cogent Communications (CCOI.US)$ +2% (Shares of the communications and internet company gained 2.8% after a Bank of America upgrade. Cogent said Tuesday it had closed on a plan acquisition of Sprint's wireless network from T-Mobile.)

$Match group (MTCH.US)$ +2% (Shares rose 2.7% in light volume during premarket trading. The online dating company reported first-quarter earnings that topped analysts estimates from Refinitiv after the bell Tuesday. However, Match's revenue missed expectations.)

$Biogen (BIIB.US)$ -4% (The biotech company declined about 4% on Wednesday, after Eli Lilly reported its Alzheimer's drug trial data. Biogen reported earnings last week, notching an adjusted $3.40 per share while analysts polled by StreetAccount forecasted $3.28. The company recently received authorization from the Food and Drug Administration for an ALS treatment drug.)