Nvidia shares edged higher in early Wednesday trading as investors looked to the AI-chip maker’s fiscal-third-quarter earnings after the closing bell with a focus on its demand outlook into the end of the year and beyond.

Nvidia  (NVDA) , which holds a commanding 90% share of the market for so-called artificial-intelligence accelerators — the chips and processors that power the massive data systems of hyperscalers such as Microsoft  (MSFT)  and Amazon  (AMZN)  — has added more than $2.2 trillion in market value so far this year.

The group has doubled its sales for each of the past five quarters and is on pace for a fiscal 2025 tally of around $126.4 billion. But it is starting to see challenges to its near-term…