Upstart is trading 4.21% up at $23.77, alongside its October 5 report of September and Q3 originations. - September originations were $1,378.3 million; Q3 originations totaled $4,117.8 million. Daily originations were $53.1 million in September, versus $51.6 million for Q3. - The Upstart Macro Index was 1.49, slightly below 1.50 on September 3. - The release did not explicitly attribute the share move to the report. Broader indices were mixed, offering no clear market-wide explanation; trading volume was not verified.