Falling interest rates could give the AI lender a much-needed boost. Upstart Holdings (UPST -0.09%) promised to revolutionize lending by making credit available to more borrowers through its artificial intelligence (AI)-based assessment models. The company got off to a blistering start when it went public in late 2020, but the past few years have revealed the cyclical nature of the young company. The stock peaked at more than $400 in the year after its initial public offering (IPO) and is down 94% from its ...