KOSPI Crashes 8.3% and Trips a Circuit Breaker as Iran and Israel Trade Strikes. Brent Jumps to $97 on Hormuz Fears.
Monday, June 8, 2026  ·  Before Bell
Morning Note  ·  Equity Research

KOSPI Crashes 8.3% and Trips a Circuit Breaker as Iran and Israel Trade Strikes. Brent Jumps to $97 on Hormuz Fears.

June 8, 2026
Fund X
Steven Yuan
S&P 500 Fut 7,439 (+0.74%)
Nasdaq Fut 29,146 (+1.35%)
Dow Fut 50,803 (-0.26%)
Brent Crude $97.68 (+4.9%)
WTI Crude $93.63 (+3.4%)
10Y Treasury 4.57% (+3 bp)
VIX 15.77 (unch)
Gold $4,292 (-0.9%)

Monday pre-market, 7:00 AM ET. The dominant story overnight is the KOSPI crash. South Korea’s benchmark index plunged 8.29% to 7,484, triggering only the ninth circuit breaker in its history within three minutes of the opening bell. Samsung Electronics and SK Hynix both fell roughly 10%, and those two names alone account for about half the KOSPI’s total market capitalization. The immediate catalysts were Broadcom’s AI chip guidance miss from last Tuesday (next-quarter outlook landed below the most aggressive buyside estimates despite record $10.8B AI revenue), Friday’s blowout US jobs report stoking rate-hike expectations, and Iran’s Sunday missile strikes on Israel reigniting geopolitical risk. The KOSPI is still up 78% year-to-date after a parabolic AI-led run, so the move reads more like a leverage unwind in a single-factor market than a structural break.

The Nikkei 225 opened down 0.9% and widened to nearly -4% intraday, hitting a low of 63,987 as the Asian tech rout spread. SoftBank and Kioxia led the decline. The Hang Seng dropped 1.5% to 24,585. The common thread across Asia was a violent repricing of the AI semiconductor trade that had powered these indices to multi-decade or all-time highs in recent weeks.

Iran fired 11 ballistic missiles at Israel on Sunday, the first such exchange since the April 8 ceasefire. Israel responded overnight with airstrikes on Iranian petrochemical facilities in Mahshahr (southwestern Iran) and air defense targets near Tehran, Isfahan, and Tabriz. Fifteen people were wounded in Iran; no casualties were reported in Israel. Trump called on both sides to stop and Tehran subsequently announced a halt, saying Israel had “learned a lesson.” This is the most serious escalation in three months and puts the unsigned Hormuz memorandum further from reality. Brent crude jumped 4.9% to $97.68 per barrel while WTI rose 3.4% to $93.63. The Strait of Hormuz has been effectively closed since March 4 and this episode removes any near-term probability of a reopening deal. OPEC+ approved another 188,000 bpd production increase for July at Saturday’s ministerial meeting, but that supply addition is irrelevant against the backdrop of a 12-13 million bpd Hormuz blockade.

Despite the carnage in Asia, US futures are pointing to a split open. Nasdaq 100 futures are up 1.35% at 29,146, led by a chip stock rebound as dip-buyers step in after Friday’s historic 4.18% Nasdaq Composite selloff and 10%+ PHLX Semiconductor Index plunge. The S&P 500 futures are up 0.74% at 7,439 while Dow futures are down 0.26% at 50,803, dragged lower by energy-sensitive industrials and the geopolitical risk premium. The Friday selloff took the S&P 500 down 2.64% to 7,383.74 and the Dow down 1.35% to 50,867 for the worst session since October.

Marvell Technology surged 8.8% pre-market to $287.05 after S&P Dow Jones announced the AI chipmaker will join the S&P 500 index on June 22, replacing Pool Corp. The inclusion caps a remarkable year for the stock, now up 210% year-to-date, and follows Jensen Huang calling Marvell “the next trillion-dollar company” at Computex last week. Flex also joins the S&P 500, replacing Campbell’s, and rose 4.3% pre-market to $158.50. Other chip rebounds in pre-market include IPG Photonics (+8.2%) and Micron (+7.1%).

Meta Platforms is weighing a multi-billion-dollar equity raise, reportedly examining a mandatory convertible preferred structure similar to Alphabet’s $85B raise from earlier this month. The FT broke the story on Friday, and Meta fell 5.5% to $593 on dilution fears. The company’s 2026 AI capex budget of $125-145B makes external financing increasingly likely, and this overhang will weigh on mega-cap tech sentiment this week.

Apple’s WWDC 2026 keynote begins today at 1:00 PM ET from Cupertino. The headline announcement is expected to be a Siri overhaul powered by Google’s Gemini models, alongside iOS 27, macOS 27, and expanded Apple Intelligence features including third-party AI service defaults. Apple shares edged up 0.4% pre-market to $308.45. This is a software event, not a hardware cycle, so the stock impact should be modest unless there is a surprise product reveal.

The 10-year Treasury yield rose 3 basis points to 4.57%, its highest in two weeks, as Friday’s 172,000 jobs report (vs. 85K consensus) shifted the rate trajectory. Markets now price over 60% odds of a Fed rate hike by October and near certainty by December. The 2-year yield climbed 5 basis points to 4.20%. The dollar index firmed to 100.07 (+0.64%). Gold slipped 0.85% to $4,292 as the dollar strengthened, while Bitcoin ticked up 1.4% to $63,192.

Key Data and Events Today

Time (ET) Event Note
1:00 PM Apple WWDC 2026 Keynote Siri/Gemini, iOS 27, AI features
All Day Israel-Iran ceasefire monitoring Trump urging halt

Key Events This Week

Date Time (ET) Event Note
Wed Jun 10 8:30 AM May CPI Apr was 3.8% YoY, energy +18% YoY
Wed Jun 10 1:45 PM Bank of Canada Rate Decision Watch for cut signal
Thu Jun 11 8:30 AM May PPI / Jobless Claims Inflation double-tap
Thu Jun 11 12:15 PM ECB Rate Decision Lagarde press conf 12:45
Fri Jun 13 10:00 AM UMich Consumer Sentiment (Prelim) June read
Jun 16-17 2:00 PM First Warsh FOMC + Dot Plot Hike odds rising

Friday’s Selloff Recap

Index Close Change
S&P 500 7,383.74 -200.57 (-2.64%)
Nasdaq Comp 25,709.43 -1,121.53 (-4.18%)
Dow 50,866.78 -695.15 (-1.35%)
Russell 2000 2,833.50 -101.83 (-3.47%)
PHLX Semi (SOX) – -10%+ worst since Mar 2020

Pre-Market Movers

Ticker Move Catalyst
MRVL +8.8% S&P 500 addition effective Jun 22
FLEX +4.3% S&P 500 addition effective Jun 22
IPGP +8.2% Chip/photonics rebound
MU +7.1% Chip rebound, Computex memory momentum
AAPL +0.4% WWDC 2026 keynote today
META -5.5% (Fri) $64B convertible equity raise reports

Geopolitical Tracker

Iran-Israel: Iran fired 11 ballistic missiles at Israel on Sunday and Israel retaliated with airstrikes on Iranian petrochemical facilities, air defenses near Tehran, Isfahan, and Tabriz. Trump called on both sides to halt attacks and Iran’s military subsequently announced a pause. Casualties were limited (15 wounded in Iran, none in Israel). This is the first direct exchange since the April 8 ceasefire and raises the risk premium across energy and defense assets. The unsigned Hormuz memorandum is effectively dead for now.

Strait of Hormuz: Closed since March 4. Tanker traffic near zero. The market is absorbing the loss of roughly 12-13 million barrels per day, the largest oil supply disruption in history. Chinese crude imports have fallen to their lowest level in ten years. The UAE departed OPEC effective May 1. This weekend’s re-escalation makes any near-term reopening deal a remote probability.

OPEC+: Approved another 188,000 bpd production increase for July at the Saturday ministerial in Vienna, continuing the gradual supply normalization even as Hormuz transit remains blocked.


This note reflects information available as of June 8, 2026, 7:00 AM ET. Nasdaq 100 futures are at 29,146 (+1.35%), S&P 500 futures at 7,439 (+0.74%), and Dow futures at 50,803 (-0.26%). The KOSPI crashed 8.29% triggering a circuit breaker, the ninth in its history, on converging catalysts: Broadcom’s AI guidance miss, Friday’s hot US jobs report, and Iran-Israel missile strikes. Brent crude surged to $97.68 (+4.9%) on the re-escalation. US chip stocks are attempting a rebound after Friday’s historic selloff. Marvell joins the S&P 500 on June 22. Apple WWDC keynote is at 1:00 PM ET. May CPI prints Wednesday. The first Warsh FOMC is June 16-17, with rate-hike odds now over 60% by October. For internal use only. Not investment advice.