US stock markets today: Wall Street holds near record highs as oil prices ease on US-Iran deal hopes - The Times of India

• The Sensex and Nifty plummeted over 1% on Tuesday, driven by global market weakness, significant losses in the IT sector, and a weakening rupee. • Market sentiment was further pressured by fresh outflows from foreign institutional investors (FIIs), leading to a sharp decline in overall indices.

• The S&P 500 and Nasdaq closed lower on Monday, primarily driven by declines in megacap technology stocks such as Alphabet. • Investors are currently monitoring the market volatility as they assess ongoing developments in US-Iran negotiations.

• Most Asian equity markets declined on Tuesday, following a slump in US technology stocks and a wave of profit-taking after a strong AI-driven rally. • South Korea's Kospi Index led regional losses with a drop of more than 6%, driven by sharp declines in heavyweight chipmakers.

• South Korea's KOSPI index climbed 0.73% to reach 9,118.50, driven by strong performance in the technology and export sectors. • The growth was fueled by high semiconductor demand and ongoing AI developments, specifically benefiting industry leaders Samsung and SK Hynix.

• Seoul's Kospi stock index plummeted 10% on Tuesday, leading a widespread tech-fueled sell-off across Asian markets. • Other major indices suffered significant losses, with Hong Kong sinking over 2% and strong selling pressure hitting Shanghai, Taipei, Sydney, and Mumbai.

• South Korea’s KOSPI index plummeted 8% on Tuesday, triggering a circuit breaker that halted trading for 20 minutes. • Major technology stocks led the decline, with SK Hynix falling over 10% and Samsung Electronics dropping 7.5% intraday.

• Indian stock markets crashed, wiping out over ₹4 trillion in investor wealth and reducing the total BSE market capitalization to ₹475.08 trillion. • The downturn was triggered by weak global cues, specifically a 10% plunge in South Korea's KOSPI index, alongside F&O expiry pressures.

• AI-driven demand is significantly reshaping the global semiconductor industry, leading to major shifts in market valuations. • SK Hynix has officially overtaken Samsung Electronics to become the most valuable company in South Korea.

• Asian markets plummeted on Tuesday, highlighted by South Korea's KOSPI index falling nearly 10% and triggering a trading halt. • The crash was driven by tech sector profit-taking, fears of U.S. interest rate hikes, and reports that SK Hynix is scaling back its HBM4 expansion.

• South Korea's KOSPI benchmark crashed over 8%, triggering a regional domino effect that saw Japan's Nikkei fall 3% and Taiwan's markets retreat. • The sell-off was driven by an "AI trade unwind," as investors rotated out of major technology stocks due to concerns over stretched valuations and rising AI spending.

• Global markets maintained a positive tone on June 22, 2026, driven by progress in US-Iran peace talks and the US Treasury's decision to permit Iranian oil sales. • Oil prices dropped by more than 3% due to eased supply risks, while the US dollar saw a slight increase.