Check out the companies making headlines before the bell : Alibaba — Chinese e-ecommerce giant saw shares rising more than 3% after The Wall Street Journal reported that the firm has created a more advanced chip as it looks to fill the gap left by Nvidia running into issues around selling its chips in China. Nvidia shares extended their recent losses, falling about 1% in the premarket. Caterpillar — The industrial giant's shares lost nearly 3% in premarket trading after the company warned it could take a $1.5 billion-$1.8 billion hit this year due to tariffs. Dell Technologies — The tech stock slipped 5% after the company gave third-quarter earnings per share guidance that below Wall Street's expectations. Dell still beat on its top and bottom lines for the latest quarter, however. Ulta Be

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