Upstart Holdings, Inc. shares fall 1.87% premarket after Pfizer's positive feedback on System1's ad performance.
ByAinvest
Tuesday, Sep 2, 2025 4:32 am ET1min read
UPST--
Upstart Holdings, Inc. declined 1.87% in premarket trading. The news event mentions Pfizer's use of System1 for advertising, which is not directly related to Upstart Holdings, Inc. Therefore, the decline in stock price may be due to other factors not mentioned in the provided news events.
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