jetblue airways airbus a320200 aircraft as seen on final approach landing at new york john f kennedy international airport in usa check out the companies making the biggest moves in premarket trading jetblue airways jetblue airways lost nearly 2 after evercore isi downgraded the airline to underweight citing the recent sharp rally in shares and balance sheet concerns zillow group the stock popped 47 after being upgraded by piper sandler to overweight from neutral analyst thomas champion also hiked his price target to 62 per share suggesting 33 upside from mondays close product optionality and new initiatives as well sequential improvements in the housing macro environment were among the reasons for his call jpmorgan chase the wall street heavyweight added 12 in premarket trading after an upgrade from jefferies to buy from hold on tuesday the firm also labeled jpmorgan chase as bestinclass us bancorp shares of the minnesotabased bank gained 22 following an upgrade to buy from neutral by bank of america analyst ebrahim poonawala said us bancorp is among the highest quality franchises in the us banking industry with its scale earnings and strong execution expected to drive superior earnings growth and stock outperformance amazon shares ticked 08 higher as the ecommerce giant kicked off its highly anticipated prime day summer sale which goes through wednesday wells fargo also added amazon to its signature picks list citing better expectations for amazon web services prime day revenue growth and a riskreward that is still favorable wd40 shares jumped more than 5 after the lubricant and rustremover maker reported fiscal thirdquarter results postmarket monday wd40 posted 1417 million in total net sales a 15 increase from the prior year 3m shares rose nearly 2 in premarket trading following an upgrade to neutral from underperform by bank of america the bank said 3m has positive catalysts ahead related to litigation settlements restructuring and the planned spinoff for the health care business zions bancorp  truist the bank stocks were under pressure tuesday morning after jefferies downgraded both zions and truist to hold from buy lowering its earnings estimates for the two companies shares of zions fell 15 in premarket trading while truists were down 1 iovance biotherapeutics iovance biotherapeutics fell more than 11 the biotech company on monday said the pricing of its underwritten public offering of 20 million shares of common stock would be at 750 per share the gross proceeds from the offering are set to be about 150 million