By Elena Vasquez

CoreWeave shares rose 13% in premarket trading Wednesday after the cloud provider raised its 2026 outlook for both revenue and operating income, leading U.S. stock futures higher and supporting a rebound in technology shares after Tuesday's losses.

What did CoreWeave report?

CNBC reported that CoreWeave's third-quarter revenue exceeded analyst expectations, giving investors a second positive signal alongside the stronger 2026 targets. The company provides data-center capacity on lease to major technology firms, including Microsoft.

A recent spike in CoreWeave's borrowing costs has unsettled investors, The Wall Street Journal reported. The financing issue made the upgraded operating-income forecast as important as the revenue target: investors were weighing better performance against the cost of funding it.

In premarket trading, Nasdaq-100 futures rose 1.9%, S&P 500 futures gained 0.9%, and Dow Jones Industrial Average futures increased 76 points, or 0.2%.

Why did Nvidia reverse its slide?

Nvidia shares jumped 5% Wednesday after falling nearly 10% at the start of the week. CNBC reported that the drop followed Jensen Huang's admission of an affair with a woman suspected of spying for China.

The Nvidia rebound helped counter Tuesday's market pressure, when the chipmaker's pullback dragged the major averages lower. Equities also had to absorb inflation data, which complicated the company-specific recovery.

CNBC reported that the consumer price index rose 0.4% in October from September, above expectations. The monthly gain increased pressure on monetary policy and complicated the case for a technology-led equity rebound.

After the release, the probability of a quarter-point Federal Reserve rate increase in December climbed to roughly 90%, according to CNBC's account of CME Group's FedWatch tool. The U.S. bond market stayed shut Wednesday for Veterans Day.

Which Asian markets responded?

South Korea led the regional response: CoreWeave's results fueled a 2.6% gain in the Kospi at Wednesday's close, according to CNBC.

• SK Hynix rose 5.4% and Samsung Electronics gained 3.6%.
• Japan's Nikkei 225 rose 0.9%, while Australia's S&P/ASX 200 added 0.2%.
• Hong Kong's Hang Seng Index fell 0.7%, and the CSI 300 slipped 0.4%.

Which European technology shares rose?

European technology names also moved higher, led by four sharp gains.

• Infineon advanced 6.3%, ASMI rose 5.5%, STMicroelectronics gained 4%, and ASML rose about 3%.
• The pan-European Stoxx 600 gained 0.3%. Germany's DAX rose 0.7%, France's CAC 40 added 0.4%, and the U.K.'s FTSE 100 gained 0.3%.

What does Wednesday's rally show?

Wednesday favored a selective rebound rather than a synchronized global advance: Nasdaq-100 futures rose 1.9%, Nvidia gained 5% and the Kospi added 2.6%, while the Hang Seng fell 0.7% and the CSI 300 slipped 0.4%.

At the company level, CoreWeave supplied the clearest catalyst and Nvidia restored momentum. The 13% CoreWeave advance, 5% Nvidia gain and 2.6% Kospi rise gave investors evidence that the rebound could extend beyond a single U.S. name.

European gains were led by technology names, with Infineon up 6.3% against a 0.3% gain in the broader Stoxx 600.

At the macro level, the roughly 90% probability of a quarter-point December hike became the main counterweight. The 0.4% October inflation increase pushed that probability higher, leaving Wednesday's stock gains sensitive to the policy path implied by inflation.

For investors, the distinction matters: upgraded 2026 guidance and Nvidia's 5% rebound support near-term risk appetite, while a 90% probability of tighter policy raises the hurdle for sustained gains.

CoreWeave's 13% premarket advance supplied the rebound's engine, but the roughly 90% December rate-hike probability left the rally exposed to the next inflation signal.