23rd March 2026 — Today’s Market News — KOSPI Plunges 6%, Iran–U.S. Energy Strike Threats Shake Markets, Oil Risks Surge.

Risk sentiment turns sharply cautious as escalating war risks and energy infrastructure threats drive a global shift into safe-haven assets.

Global markets turned risk-off as KOSPI plunged over 6% and oil held above $106/bbl. amid escalating Iran–U.S. tensions and threats to energy infrastructure. Equities were mixed, with the Nasdaq up 1.2% on tech buying while the S&P 500 fell 1%, reflecting defensive positioning. The dollar weakened slightly, while USD/JPY hovered near 160, a key level for Japan, keeping intervention risks in focus.

Today’s Snapshot

     • Nasdaq Composite: 22,090.69 (+1.22%) 
    • KOSPI: 5,781.20 (-6.56%) 
    • S&P 500: 6,606.49 (−1.00%) 
    • Gold: $4,491.15/oz (-0.016%) 
    • Silver: $67.78/oz (-1.80%)

Global Markets

(A) Precious Metals 
Gold: $4,491.15/oz (-0.016%) 
Gold edged slightly lower as rising U.S. Treasury yields made interest-bearing assets more attractive than gold. 

Silver: $67.78/oz (-1.80%) 
 
Silver fell as rising U.S. Treasury yields and a firmer dollar reduced demand for precious metals. 

(B) Energy 
 
Brent Crude: $106.41/bbl. (-0.15%) 
 
Oil slipped slightly as extra supply came from Iranian and Russian shipments. However, prices remained supported as Middle East tensions escalated, with threats targeting energy infrastructure raising concerns over future supply. Oil could rise toward $150/bbl if the conflict continues, said Shane Oliver from AMP.

(C) FX 
 
Dollar Index (DXY): 99.76 (-0.57%) 
The U.S. dollar changed as escalating Middle East tensions shook the commodity. The conflict intensified with threats against Iran and widened as Israel struck Tehran while missiles were reported in Riyadh, reinforcing risk-off sentiment. 

USD/JPY: 159.58 (−0.30%) 
 
USD/JPY was little changed, with the yen staying weak as higher oil prices and Middle East tensions increased pressure on Japan’s import costs. Japan also warned about rising currency volatility and officials may step in if moves become too sharp.

 

(D) Stock Market — What Happened Today

(D) Stock Market — What Happened Today 

U.S Equities 

  • Nasdaq Composite: 22,090.69 (+1.22%) 
  • S&P 500: 6,606.49 (−1.00%) 

 

The Nasdaq rose as tech stocks rebounded after recent weakness, supported by buying in AI and growth names. The S&P 500 fell as rising oil prices and geopolitical tensions increased inflation concerns, weighing on broader market sentiment. 

KOSPI: 5,781.20 (-6.56%) 
 
 
KOSPI fell as escalating tensions with Iran and rising oil prices hurt investor sentiment, raising concerns over inflation and economic slowdown. The index had earlier dropped nearly 6% before trimming losses. 

Sentiment was further pressured by expectations that the new Bank of Korea governor, Shin Hyun-song, may take a more hawkish stance, keeping interest rates higher for longer.

Volatility & Positioning


VIX closed at 18.63, indicating cautious conditions.

What Traders Are Watching

What Traders Are Watching 
 

  1. U.S. Treasury yields — Further increases could continue pressuring equity valuations, especially in growth sectors.  
  2. Federal Reserve commentary — Signals on rate path will influence both equities and the dollar.  
  3. Key technical levels in equities — Whether major indices hold near recent highs will determine near-term risk sentiment.  

“It’s not whether you’re right or wrong that matters, but how much money you make when you’re right and how much you lose when you’re wrong.”
—George Soros

Last Available  Market News — March 18, 2026 
 
Markets were mixed as equities showed limited direction, with pressure from stock-specific moves like Eli Lilly’s ~6% drop after a downgrade. Oil held firm above $103/bbl. amid supply tensions, keeping inflation concerns in focus and overall sentiment cautious. 
 
Catch up on: Eli Lilly Drops ~6% on Downgrade as Brent Holds Above $103/bbl Amid Supply Tensions. 

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