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U.S. tech megacaps slide as SpaceX extends slump, AI expense concerns grow

Published by Global Banking & Finance Review

Posted on June 22, 2026

2 min read

· Last updated: June 22, 2026

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U.S. Tech Megacaps Extend Losses: SpaceX, Alphabet, Amazon Drop Amid AI Worries

Market Reactions and AI Spending Concerns

Tech Megacaps Face Significant Losses

June 22 (Reuters) - Shares of U.S. technology megacaps tumbled on Monday as SpaceX fell for the third straight session and hyperscalers Alphabet and Amazon looked set to lose billions of dollars in market value, driven by AI spending concerns.

SpaceX's Decline and Notes Offering

SpaceX slid over 10% after last week's blistering post-IPO rally. The Elon Musk-led firm said it is launching a notes offering on Monday.

Alphabet's Sharp Drop and Leadership Changes

Alphabet dropped 6%, set for its biggest one-day fall since May 2025 and on pace to erase more than $256 billion in market capitalization. Google DeepMind's senior research scientist and Nobel laureate John Jumper said he was leaving for AI startup Anthropic, the lab's latest high-profile exit.

Expert Commentary on Sector Pullback

"This is more of a broader sector pullback on ongoing anxiety over tech companies' massive capital spend on the AI infrastructure," said David Wagner, head of equity and portfolio manager at Aptus Capital Advisors.

Amazon, Meta, and Microsoft Also Slide

Amazon.com lost 4.8%, while Meta Platforms and Microsoft eased around 3% each. The three stocks together were set to lose more than $248 billion in market value.

Investor Concerns Over AI Infrastructure Spending

Hyperscalers have committed billions to scale up their artificial intelligence infrastructures, though clearer evidence that AI products can generate returns that justify the spends are yet to be seen, raising concerns among investors.

Chip Stocks Outperform Amid Tech Selloff

Micron Technology Leads Gains

Meanwhile, shares of most chip-related stocks were higher, with memory chipmaker Micron Technology leading the way with a 5.8% gain to hit record highs. Micron also announced a strategic agreement with Anthropic to scale next-generation AI infrastructure.

Market Dynamics: Recipients vs. Spenders

"There's a distinguishing aspect of this market between those who are receiving the checks, like memory names and those who are writing the checks," Aptus Capital Advisors' Wagner said.

Best-Performing Stocks on the S&P 500

Micron and other data storage companies SanDisk and Western Digital are the best-performing stocks on the S&P 500 so far this year, emerging as the biggest winners of Wall Street's hopes of robust AI-related demand.

(Reporting by Shashwat Chauhan and Twesha Dikshit in Bengaluru; Editing by Joyjeet Das)

Key Takeaways

  • SpaceX tumbled over 10% after last week’s IPO rally and is preparing a potential $20 billion bond offering to support AI expansion (marketscreener.com).
  • Alphabet’s 6% slide marks its largest one‑day drop since May 2025, erasing over $256 billion in market value and fueled by concerns over AI infrastructure costs and executive departures (kitco.com).
  • Micron bucked the tech sell‑off, gaining 5.8% as it sealed a strategic agreement with Anthropic to supply memory and storage—and made an equity investment—highlighting the bifurcation between AI spenders and infrastructure beneficiaries (reddit.com)

References

Frequently Asked Questions

Why did U.S. tech megacap stocks fall sharply?
Tech megacaps fell due to mounting investor concerns about the high expenses related to artificial intelligence infrastructure and capital spending.
What caused SpaceX shares to decline?
SpaceX shares dropped over 10% as the firm extended its post-IPO slump and announced a notes offering, contributing to negative market sentiment.
How much did Alphabet's market value decrease?
Alphabet’s shares dropped 6%, potentially erasing more than $256 billion in market capitalization during the session.
Which chip stocks performed well despite the tech slump?
Micron Technology led gains among chip stocks, rising 5.8% to record highs, supported by a new AI infrastructure partnership with Anthropic.
What is driving investor anxiety about AI in the tech sector?
Investors are worried that ongoing heavy capital spending on AI infrastructure may not yield returns sufficient to justify the costs.

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