BANGKOK — World shares were mixed Wednesday ahead of an earnings update by computer chip giant Nvidia that may provide insights into the state and future of artificial intelligence.

Nvidia's financial results were due later in the day after trading ends in New York. Its quarterly report is expected to help clarify whether markets have been soaring on an overhyped AI bubble or on a technology boom in the making.

Germany's DAX edged 0.2% lower to 24,117.06, while the CAC 40 in Paris rose 0.4% to 7,741.15. Britain's FTSE 100 was barely changed at 9,269.36.

The futures for the S&P 500 and Dow Jones Industrial Average were little changed.

During Asian trading, Hong Kong's Hang Seng fell 1.3% to 25,201.76 and the Shanghai Composite index dropped 1.8% to 3,800.35. The Shanghai benchmark has b

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