Helping to support the fervor has been strong profit reports from Entergy and other big U.S. businesses. Companies in the S&P 500 are on track to deliver nearly 17% growth in their earnings per share for the final three months of 2024, compared with a year earlier. That would be the best growth since 2021, according to FactSet.

Airbnb climbed 14.4% after reporting stronger profit for the latest quarter than analysts expected as customers booked more nights on its platform. Wynn Resorts jumped 10.4% after likewise topping earnings expectations, thanks in part to strength for its Las Vegas operations.

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