Nvidia stock is climbing today as Wall Street reacts to the company’s next-gen AI chip launch and a $368 billion data center boom fueled by Big Tech. Shares rose nearly 4% Wednesday, outperforming the S&P 500 and reinforcing Nvidia’s dominant position in the artificial intelligence race.
Nvidia’s Rubin CPX chip sparks investor excitement
Nvidia’s latest announcement—the Rubin CPX chip—marks a major leap in AI processing. Set to debut by late 2026, Rubin CPX is designed to tackle one of AI’s biggest challenges: processing long and complex inputs, like full-length videos and large software codebases.
Key specs and claims:
- 30 petaFLOPs of compute power
- 128 GB GDDR7 memory
- Built-in video decoding, encoding, and inference
- Projected 30x–50x return on $100 million infrastructure investment
The Rubin chip will be part of Nvidia’s Vera Rubin NVL144 CPX rack system, which combines 144 Rubin GPUs, 36 Vera CPUs, and delivers 8 exaFLOPs of compute with 100 terabytes of high-speed memory.
Why Nvidia stock is up today
Beyond new product hype, Nvidia stock (NASDAQ: NVDA) is getting a boost from broader macro trends and Wall Street’s AI optimism:
- +3.85% gain in NVDA as of Wednesday afternoon
- S&P 500 up 0.3%
- Goldman Sachs reports $368 billion in AI capital spending by tech giants in 2025
- Nvidia now the largest player in AI infrastructure, ahead of AMD and Intel
The company benefits from massive AI infrastructure investments by the so-called “Magnificent Seven” tech giants—including Microsoft, Apple, Amazon, and Tesla—all of whom are building next-gen data centers powered by Nvidia hardware.
AI spending reshapes the market
While Nvidia’s stock is rising, a Goldman Sachs report warns that the same AI boom is slowing down traditional share buybacks across the S&P 500.
- Capex spending is up 24% year-over-year
- Gross share buybacks are down 1%
- Magnificent Seven companies, including Nvidia, saw no growth in buybacks this quarter
This shift shows just how central AI infrastructure has become. Companies are now prioritizing long-term tech investment over short-term stockholder returns.
What to watch next
Nvidia’s next earnings report will be critical for validating its Rubin CPX claims. Investors are watching closely to see if:
- AI revenue growth continues at record pace
- New chip systems generate early orders
- Competitors (like AMD and Intel) respond with similar architectures
Until then, Nvidia stock remains one of Wall Street’s top bets on the future of artificial intelligence.