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Part of: AI Capex

S&P 500 futures down 0.5% as Broadcom AI outlook falters ahead of open

S&P 500 futures slipped 0.5% to start June 4 on Broadcom's disappointing chip guidance, offsetting optimism from a landmark Anthropic IPO and Quantinuum's oversubscribed debut.

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Rocky AI · RockstarMarkets desk
Every weekday at 08:00 ET

TL;DR

  • Broadcom guidance miss triggers 0.5% SPX futures decline; capex deceleration risk spreads
  • Anthropic USD 150B IPO targets Q3 2026 launch; convergence risk with SpaceX deal
  • ASML hits EUR 500B cap on 60% YTD gain; locked EUV contracts shield capex durability
  • Iran no-progress statement keeps oil premium; WTI posts third consecutive gain
Sectors in focus
Tickers

Key movers

  • $AVGO
    Broadcom disappoints AI capex outlook; shares tank in premarket, dragging semis lower
  • $ASML.AS
    ASML hits EUR 500B cap on 60% YTD rally; EUV contracts locked through 2028 support durability thesis
    +60.00%
  • $CL
    WTI posts third consecutive gain as Iran ceasefire talks stall; Hormuz closure risk at 20-30 percent
  • $IXIC
    Nasdaq futures fall as Broadcom miss triggers broader AI infrastructure selloff pressure
    -0.50%
  • $VOO
    VOO crosses USD 1 trillion AUM as S&P 500 top-10 concentration hits 38%, post-bubble peak

Full brief

Asia and Europe overnight offered a mixed tape. The Nikkei 225 absorbed carry-trade hedging chatter as USD/JPY hovered near 150, keeping volatility expectations elevated on the yen front. ASML hit a fresh EUR 500 billion market cap on a 60% year-to-date rally, anchoring Europe's AI capex trade via locked EUV contracts through 2028 and signaling durability in the hyperscaler infrastructure cycle. Meanwhile, private credit headlines weighed on sentiment: an SDNY criminal probe into valuation practices across the $1.5 trillion private credit market emerged June 3, putting pressure on asset managers and credit spreads.

US futures opened soft: SPX futures down 0.5%, reflecting a sharp reversal from yesterday's close. Broadcom's forward sales growth guidance missed consensus expectations, triggering a selloff in the semiconductor complex and dragging down Nasdaq 100 futures more steeply. The miss came as a reality check on AI capex durability and moderation risks in hyperscaler spending. This morning's premarket action showed selective damage: chip and AI-adjacent names wobbled, while mega-cap tech consolidation deepened the dispersion between top-10 names and the Russell 2000, which now trails the S&P 500 by over 500 basis points year-to-date. SPY and QQQ both traded lower in early US hours.

Macro calendar today is light. No major economic releases or Fed speakers are flagged for June 4. The absence of data announcements means the focus stays on corporate guidance misses, earnings surprises, and the trajectory of geopolitical risk premiums. Iran's explicit statement of no recent progress in US ceasefire talks, issued June 3, keeps the oil risk premium embedded: WTI crude posted its third consecutive gain, with closure probability on the Strait of Hormuz at 20 to 30 percent and the geopolitical bid supporting CL near current levels.

Earnings on deck: Broadcom's disappointing outlook arrived after hours yesterday, setting a cautious tone for semiconductor and AI infrastructure plays today. Quantinuum priced its IPO June 3 at USD 60 per share, upsized, as institutional conviction on quantum computing capex held steady. Anthropic targets a USD 150 billion valuation in an IPO led by Morgan Stanley and GS, with a Q3 2026 filing expected within weeks to months; backing from Alphabet and Amazon signals structural AI capex demand, but pricing risk remains if either the SpaceX mega-deal or Anthropic floats below consensus.

Cross-asset backdrop: the dollar held firm on carry-trade crowding and Fed rate expectations, with options traders hedging for sharp yen swings over the next two weeks. Rates remain anchored as Warsh-led Fed commentary keeps the hold-for-longer narrative alive. Crude maintained its bid on geopolitical premium and supply-risk talk. Private credit redemption stress and valuation scrutiny add a tail risk for high-yield spreads, though LQD and HYG held resilient overnight. Mega-cap concentration now sits at 38% for the S&P 500 top 10, exceeding dot-com peak levels, with VOO crossing USD 1 trillion AUM on June 3; this structural imbalance leaves passive-flow-driven concentration vulnerable to any upside disappointments in tech capex guidance.

The desk enters the open watching: (1) whether the Broadcom miss signals a deceleration in AI infrastructure capex that ripples across AMAT, LRCX, KLAC and ASML into next quarter; (2) Anthropic IPO terms and potential convergence risk if both SpaceX and Anthropic price below expectations, compressing demand for subsequent AI-sector floats; (3) the durability of XLY and XLI underperformance versus mega-cap tech, given tariff headwinds now spanning 60 trading partners at a 10% floor; (4) whether private credit probe fallout forces credit spread repricing or asset sales that ripple into equities. The bias is cautious into the open, with small-cap and cyclical underperformance likely to persist unless macro surprises stabilize the capex narrative.

What to watch next

  • 01Broadcom capex miss: does it ripple to AMAT, LRCX, KLAC guidance expectations today
  • 02Anthropic IPO convergence: pricing risk if SpaceX deal or Anthropic float below consensus expectations
  • 03XLY and XLI tariff underperformance: 60 trading partners at 10% floor; margin repricing ahead
  • 04Private credit probe fallout: SDNY investigation may force HYG spread repricing or asset sales
Topic hub
AI Capex: Who's Spending, Who's Earning, and What's at Risk

Tracking AI infrastructure capex — hyperscaler spend, data center buildouts, memory demand and the margin compression risk.