All eyes are on Nvidia 's third-quarter earnings results on Wednesday, Nov. 19 - a barometer for the AI-frenzy that pushed markets to record highs this year, yet causing concerns on Wall Street as a possible bubble.

The AI chip giant's valuation currently sits at around $4.6 trillion, down from earlier levels due to concerns about its artificial intelligence business. Nvidia's shares were down more than 3% in early trading on Tuesday, Nov. 18.

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