Nvidia Corp. (NVDA) just reminded everyone why it's the undisputed heavyweight champion of the AI era. After weeks of nervous speculation about sky-high AI valuations, wild options market action, and the possibility of a record-breaking $320 billion post-earnings market cap swing, the chip giant delivered results that can only be described as spectacular.

Nvidia shares surged in early Thursday trading after the company demolished expectations and raised its forward guidance, giving ETF investors the reassurance they'd been desperately seeking. Funds packed with Nvidia holdings—particularly semiconductor, megacap tech, and AI-focused ETFs—experienced an immediate relief rally that rippled across global markets.

The Numbers That Moved Markets

For the quarter ending in October, Nvidia posted revenue of $57 billion, representing a 62% jump from the previous year. Nearly all of that growth came from one place: unrelenting demand for AI infrastructure and data center hardware. The data center segment alone generated $51.2 billion, easily surpassing consensus estimates and reinforcing what Wall Street already suspected—GPU shortages remain the primary constraint on AI expansion.

The company's guidance for the fourth quarter hit $65 billion, well above what analysts had penciled in.

CEO Jensen Huang didn't mince words: "Blackwell sales are off the charts, and cloud GPUs are sold out." Translation for investors: the AI boom isn't slowing down, and Nvidia is still controlling the supply.

ETFs Ride the Nvidia Wave

The same ETFs that had investors biting their nails just two days ago became Thursday's biggest winners.

Semiconductor Funds Lead the Charge

ETFs with substantial Nvidia exposure reacted immediately to the earnings surprise:

• VanEck Semiconductor ETF (SMH) – With Nvidia representing over 20% of its portfolio, this fund jumped nearly 3% in premarket trading. The earnings beat translated directly into a significant net asset value boost.
• iShares Semiconductor ETF (SOXX) – Another Nvidia-heavy fund that rallied on the results.
• Invesco PHLX Semiconductor ETF (SOXQ) – A smaller fund, but equally exposed to Nvidia's price movements.

These ETFs essentially function as "Nvidia plus supporting cast," and Thursday's market action confirmed that characterization.

Megacap Tech ETFs Snap Back

The pre-earnings anxiety that had weighed on broad tech ETFs evaporated quickly:

• Invesco QQQ Trust (QQQ) – With Nvidia as one of its largest holdings, this fund had wobbled on concerns about an AI bubble. Those worries dissipated Thursday morning.
• Invesco NASDAQ 100 ETF (QQQM) – Also moved higher as Nasdaq futures surged on the news.

Even Broad Market Index Funds Get a Lift

Here's something worth noting: Nvidia now represents roughly 8% of the S&P 500. That means broad index ETFs felt the impact too:

• SPDR S&P 500 ETF Trust (SPY) and Vanguard S&P 500 ETF (VOO) both reflected Nvidia's surge in Thursday trading. This is one of those rare earnings events where a single company's results can meaningfully shift an entire index.

The Rally Goes Global

Nvidia's results sparked optimism that extended far beyond U.S. borders.

According to reports, chipmakers rallied across Europe and Asia. BE Semiconductor Industries and ASM International jumped, while Samsung Electronics and Foxconn also posted gains. U.S. peers Advanced Micro Devices Inc. (AMD), Arm Holdings PLC (ARM), Broadcom, and Marvell followed the upward trend.

Global semiconductor ETFs benefited as well. The iShares Semiconductor UCITS ETF in Europe and the Global X Semiconductor ETF in Australia both surged between 3% and 5% on Thursday, positioned to gain further from synchronized sector strength.

The Valuation Question Remains

Yes, Nvidia's numbers were strong enough to flip market sentiment overnight. But analysts are still sounding notes of caution about the AI ecosystem's tightly interconnected nature—and its potential vulnerabilities.

Karen McCormick of Beringea told CNBC that the deep relationships between players like Nvidia and Microsoft Corp. (MSFT) could create systemic risk if AI enthusiasm fades. However, she noted that a complete collapse seems unlikely given that major players have strong balance sheets to weather volatility.

Matt Britzman at Hargreaves Lansdown echoed similar sentiments to the BBC, acknowledging that valuations in certain AI segments look stretched while emphasizing that Nvidia's fundamentals remain solid.

The bottom line: Nvidia is still the star of the show, but the ticket prices for the rest of the cast are getting awfully high.