9 min read

Stock Market News — June 23, 2026 — Morning Update — Last 12 Hours (Pacific Time)

A violent global tech selloff originating in South Korea's leveraged ETF market hammered semiconductor giants like Qualcomm (-9.8%), KLA (-9.9%), and ASML (-7.9%), dragging the Nasdaq to one-week lows. The KOSPI triggered a circuit breaker after plunging 8%, though bargain hunters partially stemmed

Executive Summary

A violent global tech selloff — originating in South Korea's leveraged ETF market — swept through Asia, Europe, and Wall Street on Tuesday, hammering semiconductor stocks and dragging the Nasdaq and S&P 500 to over one-week lows. The KOSPI triggered a circuit breaker after plunging 8%, with the contagion spreading to chip giants like ASML (-7.9%), Qualcomm (-9.8%), KLA (-9.9%), and Micron (-7.9%). Bargain hunters partially stemmed broader losses, but hawkish Fed bets and mounting AI spending skepticism kept sentiment firmly risk-off.


Sentiment Breakdown

Sentiment Count Percentage
🟢 Bullish 48 ~24%
🟡 Neutral 22 ~11%
🔴 Bearish 132 ~65%

Net Sentiment: Bearish — A broad-based tech and semiconductor rout, hawkish rate fears, and weak PMI data dominated the session, overwhelming isolated pockets of strength in deal activity and select upgrades.


Top Market-Moving Headlines

  1. 🔴 Macro / Equities | S. Korea's KOSPI slumps 8%, triggers circuit breaker as AI rally turns tail
    Market Impact: The circuit breaker event was the epicenter of today's global selloff, with South Korean leveraged chip ETFs forcing cascading liquidations across global semiconductor names.

  2. 🔴 Semiconductors | Chip stocks plunge, but bargain-hunters stem losses in other tech names
    Market Impact: The iShares Semiconductor ETF fell 6.1% and the Direxion 3X Semi Bull ETF dropped 17.5%, marking one of the sharpest single-day sector drawdowns of 2026.

  3. 🔴 Semiconductors | Why is ASML stock tumbling today?
    Market Impact: ASML fell 7.9% amid an unresolved export control dispute, amplifying the global chip selloff and raising supply-chain concerns for the entire semiconductor equipment space.

  4. 🔴 Semiconductors | Why is Qualcomm stock tumbling today?
    Market Impact: Qualcomm shed nearly 9.8% ahead of its investor day, with the selloff undermining what was expected to be a bullish data center catalyst event on Wednesday.

  5. 🟢 Space / Capital Markets | SpaceX bond sale draws $89 billion in investor demand
    Market Impact: The $89B demand figure for SpaceX's debut U.S. bond sale signals extraordinary institutional appetite for Musk-linked assets even as SPCX equity fell 4.2% in the broader tech rout.

  6. 🔴 Equities / Tech | Tech sell-off weighs on Nasdaq and S&P while Dow holds gains in mixed trading
    Market Impact: The divergence between the Dow and tech-heavy indices underscores a rotation out of high-multiple growth names and into value, a trend worth watching into next week.

  7. 🔴 Semiconductors / Memory | South Korea leveraged ETF crisis sparks global chip selloff
    Market Impact: South Korea's financial regulator expressed regret over approving high-leverage chip ETFs, with the forced unwind creating a systemic ripple across SK Hynix, Samsung, Micron, and Western Digital.

  8. 🟢 Credit / Ratings | TSMC outlook raised to positive by S&P on market leadership
    Market Impact: S&P's positive outlook revision on TSMC provides a fundamental counterweight to the selloff narrative, reinforcing the chipmaker's structural dominance in advanced node manufacturing.

  9. 🔴 Consumer / Cruise | Carnival forecasts current quarter profit below estimates on higher fuel costs
    Market Impact: Carnival shares fell 6% despite an earnings beat, as elevated fuel costs and forward guidance disappointment triggered a sell-the-news reaction across the cruise sector.

  10. 🟢 AI / Wearables | Meta launches cheaper range of AI smart glasses starting at $299
    Market Impact: The lower price point broadens Meta's addressable market for AI hardware significantly, a strategic move that could accelerate adoption ahead of the EU's escalating addictive-design probe.

  11. 🔴 Lighting / Europe | Signify halts share buybacks, updates targets; shares plunge 15% to record low
    Market Impact: Signify's suspension of buybacks and downgraded targets sent shares to an all-time low, adding to the European tech and industrials selloff.

  12. 🟢 AI / Data Centers | Blackstone plans $30 billion investment in Japan AI data centres
    Market Impact: The $30B commitment underscores continued mega-cap private equity conviction in AI infrastructure despite today's public market volatility in the sector.

  13. 🔴 Entertainment / Equity Offering | AMC Entertainment stock tumbles 19% on share offering
    Market Impact: AMC's $200M share offering at a steep discount triggered a near-20% drop, a classic dilution-driven selloff that further pressures the already-fragile meme stock.

  14. 🟢 Energy / Nuclear | Constellation Energy to supply nuclear power to Walmart facility under 15-year deal
    Market Impact: The long-term nuclear PPA with Walmart signals accelerating corporate demand for clean baseload power, a structural tailwind for Constellation and the broader nuclear energy theme.

  15. 🔴 Fintech | Robinhood stock falls after $2B convertible notes offering
    Market Impact: The $2B convertible note pricing sent HOOD down 6% in premarket, as dilution concerns outweighed any strategic rationale for the capital raise.

  16. 🟢 Ratings / Upgrades | Barclays lifts S&P 500 target to 7,800, bets on earnings strength
    Market Impact: Barclays' upward revision to 7,800 (from 7,650) and a 2027 target of 8,800 provides a bullish macro anchor, though the timing amid today's selloff may test conviction.

  17. 🔴 Telecom / UK | Why is Telecom Plus stock plunging today?
    Market Impact: Telecom Plus plunged 29.4% — one of the sharpest single-stock moves in the UK today — after a negative operational update from the Utility Warehouse operator.

  18. 🟢 M&A / UK | FirstCash to buy UK's Ramsdens for £206M; shares surge 30% to record high
    Market Impact: The acquisition premium drove Ramsdens to a record high, highlighting that deal activity remains robust even in a risk-off tape.

  19. 🔴 Infrastructure / Earnings | Why is Primoris Services stock collapsing 35% today?
    Market Impact: A 34.5% premarket collapse in Primoris — a Dallas-based infrastructure contractor — suggests a severe earnings or guidance miss, one of the largest single-stock drops of the session.

  20. 🟢 AI / Enterprise | Zeta Global stock rises on Palantir partnership announcement
    Market Impact: The Palantir partnership drove Zeta Global up 9.3% in premarket, one of the few AI-adjacent names bucking the broader tech selloff on concrete enterprise deal news.


Tickers in Focus

Ticker Price / Change Context
SPCX -4.2% SpaceX equity fell below IPO debut price; bond sale drew $89B demand
TSM Outlook ↑ S&P revised outlook to Positive on market leadership
ASML -7.9% (~$1,776) Export control dispute + global chip selloff
QCOM -9.8% (~$200.25) Broad semiconductor rout ahead of investor day
KLA -9.9% Global tech selloff; semiconductor equipment exposure
AMAT -8.5% Semiconductor selloff + macro headwinds
MU -7.9% (~$1,116) Memory chip contagion from KOSPI collapse
WDC -7.5% South Korean memory chip selloff spillover
SOXX -6.1% iShares Semiconductor ETF broad sector decline
SOXL -17.5% (~$247.97) Direxion 3X Semi Bull ETF leveraged selloff
INTC -6.6% Pullback from recent highs in chip rout
MRVL -7.4% (~$285.04) Broad semiconductor selloff
CCL -6.0% Q2 beat but Q3 guidance miss on fuel costs
HOOD -6% premarket $2B convertible notes offering dilution
AMC -19% $200M share offering at discount
VRNS +12% Bloomberg report of potential sale
HYLN -13.4% Pelican Way Research short seller report
CRDO -11.6% Pullback from record highs in chip rout
NOW +4.0% Analyst price target hike + AI deal momentum
ZETA +9.3% Palantir strategic partnership announcement
ACN +1.7–2% $2B buyback program increase
CHWY +3.1–3.5% TD Cowen top pick designation
IBM +3% premarket Trump quantum summit shoutout + executive orders
ASTS +3.2–4% August satellite launch plan announced
TPL +4.6% Chevron power deal agreement
BLZE +20% CoreWeave 5-year $335M storage deal
BOLD +76.5% premarket Serapha Bio merger agreement
INSP -2.3–2.5% Evercore ISI downgrade to In Line
NKE -1.4% (~$42.58) Evercore ISI downgrade; analyst concerns
STG -7.3% (~$1,013.85) Chip sector contagion
GRRR +7% $2.5B five-year AI contract secured
TUSK +7.7% Wexford Capital stake increase
ARMP +7.7% Additional DoD funding announced
CDW +2.6% Morgan Stanley upgrade to Overweight
ATLN +70% premarket $52M Dutch contract win

Market Implications

The South Korean leveraged ETF unwind is the clearest near-term risk signal: when retail-driven leverage in a single market can trigger 8%+ index moves and circuit breakers, it exposes how stretched AI/chip valuations had become globally. The forced deleveraging in KOSPI names like SK Hynix cascaded directly into U.S. memory and semiconductor equipment stocks, suggesting the sector remains vulnerable to further technical selling if leverage continues to unwind. Investors should watch whether ASML's export dispute resolves quickly — it's a critical swing factor for the entire chip supply chain.

The hawkish Fed narrative is compounding the tech pain. Canada's hot inflation print and mounting bets on a more restrictive Fed are tightening financial conditions at exactly the wrong moment for high-multiple growth stocks. The Nasdaq-Dow divergence today hints at a rotation into value and defensives — sectors like nuclear energy (Constellation/Walmart deal), logistics (Goldman's LTL upgrades), and healthcare (RBC's GE HealthCare initiation) may attract flows if this rotation deepens into next week.

Despite the selloff, the deal pipeline remains remarkably active: SpaceX's $89B bond demand, Blackstone's $30B Japan AI data center commitment, and a flurry of IPO activity (CopperTech, EG Group, Doncasters) suggest institutional capital is still being deployed — just more selectively. The divergence between private market enthusiasm and public market volatility is a key tension to monitor heading into Q3.


Vlad's Key Takeaways

  • 🔴 KOSPI — South Korea's 8% crash and circuit breaker was the day's ground zero, triggering a global semiconductor chain reaction.
  • 🔴 SOXX/SOXL — Semiconductor ETFs fell 6.1% and 17.5% respectively; the chip trade is in a sharp corrective phase.
  • 🔴 ASML — Down 7.9% on unresolved export controls; a resolution (or escalation) here will set the tone for the entire equipment sector.
  • 🔴 QCOM — Nearly 10% drop ahead of investor day; Wednesday's data center presentation is now a must-watch recovery catalyst.
  • 🟢 SpaceX bonds — $89B in demand for debut bond sale signals institutional conviction in the company's credit story even as equity stumbles.
  • 🟢 TSMC — S&P's positive outlook upgrade is a rare bright spot, reinforcing structural leadership in advanced chip manufacturing.
  • 🔴 CCL — Beat on Q2 but missed Q3 guidance on fuel costs; the cruise sector recovery narrative faces a near-term headwind.
  • 🔴 HOOD — $2B convertible offering sent shares down 6%; dilution risk is real for fintech names tapping capital markets aggressively.
  • 🔴 AMC — 19% drop on $200M share offering; meme stocks remain highly vulnerable to equity dilution events.
  • 🟢 Blackstone — $30B Japan AI data center commitment signals private equity is buying the dip in AI infrastructure thesis.
  • 🟢 Constellation Energy — 15-year nuclear PPA with Walmart reinforces the clean baseload power theme as a durable investment trend.
  • 🟢 BLZE — 20% surge on a $335M CoreWeave deal; cloud storage beneficiaries of AI infrastructure buildout are outperforming.
  • 🔴 Primoris Services — 35% collapse is a severe outlier; watch for earnings/guidance details that could ripple into infrastructure contractor peers.
  • 🔴 Telecom Plus — 29.4% plunge is one of the UK session's most dramatic moves; operational update disappointed significantly.
  • 🟢 Ramsdens/FirstCash — 30% surge on £206M acquisition; M&A premium activity continues even in risk-off tape.
  • 🟢 IBM — Trump quantum summit endorsement + executive orders drove 3%+ premarket gain; quantum computing policy tailwind is real.
  • 🟢 ServiceNow — +4% on analyst upgrade and AI deal momentum; enterprise software with sticky AI revenue is holding up better than hardware.
  • 🔴 Oracle — 21,000 jobs cut (13% of workforce) as AI automation reshapes enterprise tech headcount; a structural shift, not a one-off.
  • 🟢 Meta — $299 AI smart glasses launch broadens addressable market; hardware monetization of AI is accelerating despite EU probe risk.
  • 🔴 Hawkish Fed + Canada CPI — Hot inflation data north of the border and rising Fed hawkishness are tightening the macro backdrop for risk assets globally.

Thematic Analysis

Global Semiconductor Rout & Leveraged Unwind 🔴
The KOSPI circuit breaker and South Korean leveraged ETF forced selling was the dominant macro event of the past 12 hours, transmitting losses across ASML, Qualcomm, KLA, Applied Materials, Micron, Marvell, and Western Digital simultaneously. This wasn't a fundamental re-rating — it was a technical deleveraging event — but it exposed how crowded the AI/chip trade had become. The key question for next week: does this reset valuations to a buyable level, or does leverage continue to unwind?

AI Infrastructure: Public Pain, Private Conviction 🟡
While public market chip and AI stocks were hammered, private capital told a different story — Blackstone committed $30B to Japan AI data centers, SpaceX's bond drew $89B in demand, and Zeta Global surged on a Palantir partnership. The divergence suggests institutional investors are rotating from liquid, high-multiple public AI plays toward longer-duration private infrastructure bets. Backblaze's 20% surge on a CoreWeave deal is a microcosm of this dynamic.

Fed Hawkishness & Rate Anxiety 🔴
Canada's accelerating inflation print and mounting bets on a more restrictive Federal Reserve are adding macro pressure on top of the technical selloff. European stocks fell to one-week lows as rate worries eclipsed even the positive Iran peace deal narrative. Barclays' bullish S&P 500 target raise to 7,800 provides a counterpoint, but the near-term rate environment is clearly weighing on high-multiple growth assets.

Corporate Dealmaking & Capital Markets Activity 🟢
Despite the risk-off tape, deal flow remained robust: FirstCash acquired Ramsdens, Constellation signed a 15-year nuclear PPA with Walmart, SoFi acquired AI trading startup Composer, and multiple IPOs (CopperTech, EG Group, Doncasters) are pricing at or above range. This suggests corporate confidence in medium-term fundamentals even as public market sentiment sours — a historically constructive signal for equity markets looking 3–6 months out.

Leadership Transitions & Corporate Restructuring 🟡
A notable cluster of C-suite changes hit the tape: Heineken named its first-ever outsider CEO, Wendy's appointed a new CFO, DHL named a new CFO, Ferrari hired a new marketing chief, and Oracle quietly cut 21,000 jobs (13% of its workforce) as AI reshapes enterprise headcount. These moves collectively signal that companies are actively repositioning for an AI-driven operating environment — with cost discipline and fresh leadership as the tools of choice.


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