PayPay Corp. shares jumped 14% in its U.S. trading debut Thursday after raising $879.8 million in the largest Japanese company IPO on American exchanges in a decade. The SoftBank-backed digital payments firm's strong performance signals renewed investor appetite for fintech offerings despite broader market uncertainty.

The IPO success comes as S&P Dow Jones Indices considers rule changes that could fast-track SpaceX's eventual S&P 500 inclusion post-IPO, according to sources familiar with the matter. The potential modifications would streamline entry requirements for major companies, reflecting the index provider's adaptation to modern market dynamics and high-profile private valuations.

Meanwhile, Ulta Beauty shares declined after reporting mixed Q4 results, beating revenue expectations but missing earnings per share forecasts. The beauty retailer also issued 2026 guidance, though specific targets weren't disclosed in available reports.

The divergent performance highlights selective investor sentiment, with growth-focused IPOs like PayPay drawing enthusiasm while established retailers face earnings scrutiny. S&P's potential rule changes suggest institutional recognition of evolving market structures, particularly for mega-cap private companies approaching public debuts.