Nasdaq Rises 0.5% as AI Infrastructure Surge Offsets Declines in Mega-Cap Stocks

NEW YORK, August 12, 2026, 19:25 EDT — U.S. markets finished regular trading for the day.

The Nasdaq Composite gained 0.54% to close at 26,588.49.
AI-infrastructure stocks rose by an average of 11.56%.
Four major mega-caps dropped 1.26%, resulting in a spread of 12.82 points.

The Nasdaq Composite rose 0.54% on Wednesday, though the headline gain masked a significant shift within the technology sector. Companies providing AI computing saw investor support, while some platforms purchasing AI computing faced declines. The index ended the session at 26,588.49, increasing by 143.04 points.

An equal-weighted basket highlights the contrast. CoreWeave NASDAQ:CRWV, Super Micro Computer NASDAQ:SMCI, Nvidia NASDAQ:NVDA and Micron Technology NASDAQ:MU posted an average gain of 11.56%. Meanwhile, Microsoft NASDAQ:MSFT, Amazon NASDAQ:AMZN, Apple NASDAQ:AAPL and Alphabet NASDAQ:GOOGL saw an average decline of 1.26%. The difference stood at 12.82 percentage points.

This is significant since the Nasdaq is still weighted by market capitalization. Nvidia’s 3.03% gain helped balance losses among some trillion-dollar counterparts. The index moved higher, while investors distinguished between AI providers and major clients incurring larger expenses.

U.S. index	Aug. 12 close	Daily change	2026 change
Nasdaq Composite	26,588.49	up 0.54%	up 14.4%
S&P 500	7,748.50	up 0.26%	up 13.2%
Dow Jones	53,770.27	down 0.04%	up 11.9%
Russell 2000	3,045.48	rises 0.61%	up 22.7%

Closing levels and changes for August 12, 2026. Year-to-date figures are rounded. Source: Associated Press.

CoreWeave surged 19.28% to reach $107.73. Super Micro advanced 19.02% to $37.61. Nvidia was up 3.03%, and Micron moved higher by 4.92%. The PHLX semiconductor index increased around 2.5%.

Equal-weight group	Constituents	Average move
AI infrastructure	CRWV, SMCI, NVDA, MU	up 11.56%
Mega-cap platforms	MSFT, AMZN, AAPL, GOOGL	down 1.26%
Performance spread	Infrastructure minus platforms	12.82 points higher

Simple equal-weight calculation using August 12 closing changes from Google Finance.

Quarterly earnings confirmed the strength of the infrastructure sector. CoreWeave’s backlog climbed to $104.2 billion from $99.4 billion the previous quarter, not including over $25 billion in commitments secured at the start of this quarter. Super Micro projected fiscal 2027 revenue ahead of analysts’ expectations.

Prices seem more robust. Analysts at MoffettNathanson noted that “project returns are strengthening, even if unit costs are going up too.” CoreWeave CEO Michael Intrator said the company’s available capacity for the near term was essentially sold out, providing suppliers with rare leverage in negotiations.

The buyers had another narrative. Microsoft dropped 2.26% to $492.43, while Amazon declined 1.83% to $267.28. Apple eased 0.87%, and Alphabet dipped 0.08%. Investors showed a preference for clear compute demand, rather than the platforms providing funding.

Company	Analyst	Call	Target	Implied move
Nvidia	Goldman Sachs	Buy, reaffirmed Aug. 12	$285	+27.2%
CoreWeave	Northland Securities	Buy, reaffirmed Aug. 12	$165	+53.2%
CoreWeave	Bernstein	Sell, kept Aug. 11	$74	-31.3%
Super Micro	Rosenblatt Securities	Buy, kept Aug. 12	$51	+35.6%
Super Micro	Bank of America	Sell, reaffirmed Aug. 12	$33	-12.3%

Selected recent recommendations and projected moves versus August 12 closes. Sources: Nvidia, CoreWeave and Super Micro analyst data.

Analysts are split even after Wednesday’s rally. Price targets for CoreWeave varied between $74 and $176. The average target for Super Micro was just 5.64% above the closing price. Forecasts indicate belief in demand, but less consensus over stable margins.

Inflation provided an additional boost. U.S. consumer prices edged up 0.1% in July and registered a 3.4% gain compared to a year ago. Core prices ticked 0.2% higher on the month and 2.5% over the year. Energy prices declined by 1.5%.

After the release, Treasury yields pulled back. Traders saw a 62% probability that the Federal Reserve would maintain current rates in September. The Cboe Volatility Index dropped to 14.45, hitting its lowest point since January.

Market signal	August 12 reading	Investor meaning
Nasdaq 52-week high	27,190.21	Index finished 2.21% under that mark
Nasdaq new highs / lows	123 / 95	Upward bias, but not dominant
Advancers versus decliners	1.7 to 1	Market gains widely shared
U.S. share volume	15.5 billion	Lower than 20-day mean of 17.5 billion

Market breadth and activity. Sources: Google Finance and Reuters.

The index remained 2.21% under its 52-week peak. On Nasdaq, there were 123 new highs and 95 new lows. Trading volumes fell 11.4% short of the 20-day moving average. The session’s tone was positive rather than exuberant.

Risks: Building AI infrastructure requires substantial investment and a stable power supply. CoreWeave forecasts capital expenditures of $35 billion to $39 billion in 2026. High reliance on key customers, financing expenses and export restrictions could diminish the premium seen on Wednesday.

The July producer price report is due before markets open on Thursday. A stronger figure could rekindle worries over interest rates. For Nasdaq, the key question is if AI suppliers can turn limited capacity into revenue while keeping balance sheets solid.

TS2 TECH • EXTENDED COVERAGE

Further analysis

Editorial insight

What caused the Nasdaq Composite to gain even as multiple major technology stocks declined?

A rally in AI infrastructure stocks drove gains. CoreWeave and Super Micro both jumped roughly 19%, with Nvidia up 3.03% and Micron advancing 4.92%. These stocks saw an average rise of 11.56% on an equal-weight basis. Meanwhile, Microsoft, Amazon, Apple and Alphabet recorded an average decline of 1.26%. Because the Nasdaq is weighted by market capitalization, Nvidia’s rise tempered the declines seen in other major components.

Does the surge on Wednesday indicate that the AI trade is expanding?

The expansion was seen among compute suppliers rather than throughout the entire technology sector. The PHLX semiconductor index rose around 2.5%, with CoreWeave, Super Micro, and multiple data-center operators posting sharp gains. Conversely, major platform buyers fell. Investors favored companies showing immediate capacity constraints and clear order pipelines over those providing the capital for expansion.

What is the Nasdaq Composite's proximity to its all-time high?

The index ended the session at 26,588.49, representing a decline of 2.21% from its 52-week high of 27,190.21. On the Nasdaq, 123 stocks hit new highs while 95 reached new lows. Despite this positive breadth, trading activity was still 11.4% lower than its 20-day average.

What is the main unknown factor driving the AI-infrastructure surge?

Gains need to exceed substantial capital investments. CoreWeave projects capital spending of $35 billion to $39 billion in 2026. The company's backlog climbed to $104.2 billion; however, issues with debt expenses, reliance on select customers, and power availability are still significant. Super Micro encounters risks to margins, heightened competition, and export restrictions.

What are the next key factors for Nasdaq investors to monitor?

The producer-price report for July will be released ahead of Thursday’s market open. An above-expectations result could renew worries over interest rates, following recent cooling in consumer inflation. Investors are also monitoring if AI component suppliers can turn substantial backlogs into revenue while maintaining profit margins and keeping balance sheets stable.