Complete Guide: Operating Hours in Major U.S. Markets 2025

Overview of the US Stock Markets

The US stock markets operate under well-defined schedules that every investor should master. There are three main exchanges operating simultaneously under the Eastern Time zone (ET), each with slightly different characteristics and hours. Knowing the US stock market hours today and every day is essential for executing effective trading strategies.

Trading Timeframes: General Structure

All North American exchanges follow a similar pattern:

  • Pre-Market Session: Early access for institutional traders
  • Main Trading Session: Peak liquidity and volume hours
  • Extended Trading: Continuation after official close

Weekends (saturdays and Sundays) are completely closed, while from Monday to Friday they operate normally.

NYSE: The Oldest and Most Prestigious Exchange

Operating Hours

Period Time Slots
Pre-Market 4:00 am - 9:30 am (ET)
Regular Session 9:30 am - 4:00 pm (ET)
After Hours 4:00 pm - 8:00 pm (ET)

Valid Monday to Friday

Founded over two centuries ago by New York traders, the New York Stock Exchange remains the most influential global financial hub. World-class companies seek to list here to access significant institutional capital flows. Its iconic location on Wall Street has made it synonymous with international financial power.

Converted Hours for Spanish-speaking Countries

City Market Open Market Close
Madrid 3:30 pm 10:00 pm
Caracas 8:30 am 3:30 pm
Lima 8:00 am 3:00 pm
Buenos Aires 10:30 am 5:00 pm
Mexico City 8:00 am 3:00 pm
Santiago 8:30 am 3:30 pm
Bogotá 8:00 am 3:00 pm
La Paz 8:30 am 3:30 pm
Quito 8:00 am 3:00 pm
Montevideo 8:30 am 3:30 pm

Nasdaq: The Tech Benchmark of America

Operating Days and Hours

Time Hours
Pre-Market 4:00 am - 9:30 am (ET)
Regular Trading 9:30 am - 4:00 pm (ET)
Extended Session 4:00 pm - 8:00 pm (ET)

Operational Monday to Friday only

Known for hosting mainly technology and biotech companies, Nasdaq (National Association of Securities Dealers Automated Quotation) is the second most important stock market in the US. Its portfolio includes giants like Marriott Airlines. Unlike the NYSE, this market does not include banking or traditional financial stocks.

The main indices are the Nasdaq 100 (the 100 largest companies) and the Nasdaq Composite (the entire universe). Annual composition reviews occur in October, with changes typically effective in December.

Time Correspondence for Latin American Investors

Location Opening Closing
Madrid 3:30 pm 10:00 pm
Caracas 8:30 am 3:30 pm
Lima 8:00 am 3:00 pm
Buenos Aires 10:30 am 5:00 pm
Mexico City 8:00 am 3:00 pm
Santiago 8:30 am 3:30 pm
Bogotá 8:00 am 3:00 pm
La Paz 8:30 am 3:30 pm
Quito 8:00 am 3:00 pm
Montevideo 8:30 am 3:30 pm

NYSE American (AMEX): The Arena for Small Caps

Trading Windows

Session Hours
Pre-Market 7:00 am - 9:30 am (ET)
Regular Operation 9:30 am - 4:00 pm (ET)
Extended Close 4:00 pm - 8:00 pm (ET)

Monday to Friday

Less known than its counterparts, NYSE American hosts small-cap companies with transformative potential. This historic segment acts as a breeding ground for future market leaders. The small companies listed here show high volatility but also significant revaluation opportunities, albeit with moderate liquidity.

Time Equivalences for Spanish-speaking Cities

Region Start End
Madrid 3:30 pm 10:00 pm
Caracas 8:30 am 3:30 pm
Lima 8:00 am 3:00 pm
Buenos Aires 10:30 am 5:00 pm
Mexico City 8:00 am 3:00 pm
Santiago 8:30 am 3:30 pm
Bogotá 8:00 am 3:00 pm
La Paz 8:30 am 3:30 pm
Quito 8:00 am 3:00 pm
Montevideo 8:30 am 3:30 pm

2025 Suspension Calendar

The three exchanges are closed on the following holidays:

Holiday 2025 Date
New Year Wednesday, January 1
Martin Luther King Jr. Day Monday, January 20
Washington’s Birthday Monday, February 17
Good Friday Friday, April 18
Memorial Day Monday, May 26
Juneteenth Independence Day Thursday, June 19
US Independence Day Friday, July 4
Labor Day Monday, September 1
Thanksgiving Thursday, November 27
Christmas Thursday, December 25

Note: Nasdaq does not observe Juneteenth in some cases due to its recent establishment in 2021

Trading Strategy: Choosing the Right Market

For active traders, aligning objectives with each exchange’s characteristics is essential. If you seek access to established companies with high capitalization, NYSE offers stability and liquidity. For cutting-edge tech exposure, Nasdaq provides unique opportunities. For hunting emerging gems with high potential, NYSE American is the ideal space.

Knowing the US stock market hours today in your local time zone optimizes your trade execution and allows you to capitalize on arbitrage opportunities during extended sessions.

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