Nasdaq has filed a proposal with the U.S. SEC to extend trading to nearly 24 hours a day, five days a week. If approved, it would create a 23-hour trading window (with a short daily break). This is not live yet.
Proposed timing
Day session: 4:00 AM to 8:00 PM ET (2:30 PM to 6:30 AM IST)
1-hour break: system checks and end-of-day processing
Overnight session: 9:00 PM to 4:00 AM ET (7:30 AM to 2:30 PM IST)
Trades before midnight would count as part of the next trading day
Sources: Nasdaq filing, Reuters, Economic Times (Dec 2025)
What this could mean for India
Faster global cues: U.S. news may get priced in sooner, instead of waiting for the next morning.
Bigger short-term swings: IT, pharma, and commodity-linked stocks may react more sharply around the Indian market open.
Short-lived pricing gaps: For Indian companies with U.S. ADRs, price differences between the U.S. and India listing may show up more often, but acting on them is usually difficult for most investors because of costs and rules.
Long-term drivers stay local: India’s market direction still depends mainly on domestic growth, policy, and earnings.
SEBI context
Nasdaq is regulated by the U.S. SEC. SEBI regulates Indian exchanges separately, and any change to Indian market timings would require SEBI approval.
The Nasdaq experienced a notable decline this week as technology and semiconductor stocks came under pressure. The move reflects a combination of investor concerns regarding the pace of AI-related capital spending, elevated valuations across parts of the technology sector, and uncertainty around the future path of interest rates.
On June 23, the Nasdaq Composite Index declined 2.21%, while semiconductor stocks saw broader weakness. Market participants have been reassessing expectations for AI-driven growth after a strong rally in many technology stocks earlier this year. Recent trading activity suggests investors are seeking additional evidence that current levels of AI infrastructure investment will translate into sustained revenue and earnings growth for companies across the sector.
A key area of focus remains the semiconductor industry, which plays a central role in the AI ecosystem. Investors are closely monitoring upcoming earnings reports and management commentary for indications of demand trends, data-center spending, memory-chip demand, and overall enterprise AI adoption. Market participants are particularly interested in whether current spending levels by cloud providers and technology companies remain consistent with previous growth expectations.
In addition to AI-related developments, interest-rate expectations continue to influence market sentiment. Higher interest rates can affect valuations, particularly for growth-oriented technology companies whose future earnings are a significant component of their market value. As a result, economic data and central bank communications remain important factors for investors evaluating technology-sector opportunities and risks.
Despite recent volatility, the long-term investment thesis around artificial intelligence, cloud computing, advanced semiconductors, and digital infrastructure remains a topic of active discussion among analysts and investors. However, current market conditions highlight the importance of balancing growth expectations with company fundamentals, earnings performance, and broader macroeconomic conditions.
Key themes investors are watching:
• AI infrastructure and data-center spending trends
• Semiconductor demand and earnings performance
• Enterprise adoption of artificial intelligence technologies
• Interest-rate expectations and inflation data
• Technology sector valuations and profitability metrics