After years of leading the stock market, Nvidia Corp.’s wild rally took a break over the summer. Now Wall Street is looking for some DC magic to get the shares running again.

The chip giant’s three-day artificial intelligence conference called “GTC” began Monday in the US capital, and all eyes will be glued to the keynote address by Chief Executive Officer Jensen Huang scheduled for midday Tuesday. While GTC events have been held in Washington before, this is the first one to feature a keynote from the CEO. And some investing pros see the location as significant.

“GTC is sort of the AI Super Bowl,” said Gerry Sparrow, who oversees about $120 million as chief investment officer of the Sparrow Growth Fund, which owns Nvidia shares. “The fact that it’s in DC could be foreshadowing that some

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