U.S. stock index futures edged higher on Wednesday as chip stocks ?steadied ahead of Nvidia's earnings report, which investors view as a crucial test of AI demand amid ?concerns about elevated Treasury yields.
Nvidia (NVDA.O), opens new tab, the world's most valuable company and the centerpiece of the global AI boom, rose 1.9% in premarket trading ahead of its quarterly results, which are expected after the closing bell.

At ?7:25 a.m. ET, Dow E-minis were up 107 points, or 0.22%, and S&P 500 E-minis were up 26.5 points, ?or 0.36%. Nasdaq 100 E-minis were up 193.5 points, or 0.67%.
U.S. stocks have come under pressure in recent days as a selloff ?in ?global bond markets drove yields higher.
The benchmark 10-year Treasury yield, which touched a 16-month high of 4.687% in the previous session, eased to 4.6393% on Wednesday.
Traders have ramped up bets the U.S. Federal Reserve could raise interest rates at the turn of the year as the conflict in the Middle East pushes oil prices higher, reviving inflation worries.
Brent crude futures ?slipped 3.3% to $108.38 a barrel after ?U.S. President Donald Trump ?again said the war with Iran would end "very quickly." Still, investors remained cautious over the outcome of peace talks as disruptions to Middle Eastern supply continued.