What It Is and How It Works

Nasdaq: What It Is and How It Works

By Carlos Pareja (EFPA) · Updated March 1, 2026
Reviewed by Andrés Sevilla Arias (CFA)

Key Points

• Fully online, allowing fast transactions and real-time information.
• Its indices, such as the Nasdaq Composite and Nasdaq-100, are key indicators of the tech sector.
• Nasdaq can be more volatile than other exchanges due to its tech-heavy focus.

What Is Nasdaq?

The Nasdaq, short for National Association of Securities Dealers Automated Quotations, is one of the world’s leading stock exchanges. Founded in 1971, it is fully electronic, enabling the fast and efficient buying and selling of shares without a physical trading floor.

It is famous for hosting some of the largest and most influential technology companies in the world, such as Apple, Microsoft, Amazon, and Google (Alphabet). Its focus on technology makes it a benchmark for investors interested in innovation and growth.

Nasdaq Explained Simply

Think of a marketplace where, instead of fruits or vegetables, people trade company shares. Each share represents a small piece of ownership in a company. When you buy a share, you become a partial owner of that business.

Unlike a traditional market, Nasdaq operates entirely online. With digital platforms, anyone can buy or sell shares from home, with real-time information about prices and trading volume. This allows investors to make informed and timely decisions.

Notable Companies on Nasdaq

Nasdaq is home to innovative and fast-growing companies. Examples include:

• Apple: Leader in electronics like the iPhone and MacBook, with significant influence on the tech market.
• Amazon: E-commerce giant that has transformed how we shop and consume products and services.
• Microsoft: Software and cloud services powerhouse, a cornerstone of global technology.

These companies not only define Nasdaq but also shape the global digital economy.

Advantages and Disadvantages of Nasdaq

Advantages

• Fast and convenient: Electronic platform allows quick transactions.
• Transparency: Real-time prices and trading volumes help investors make informed choices.
• Tech concentration: Ideal for those focusing on technology sector investments.

Disadvantages

• Volatility: Tech stocks can move sharply, increasing risk.
• Technology dependence: Technical failures could disrupt trading.

How Nasdaq Is Measured

Nasdaq performance is tracked by key indices:

• Nasdaq Composite: Includes all listed shares.
• Nasdaq-100: Comprises the 100 largest non-financial companies.

These indices provide insight into the tech market’s overall health. For example, a rising Nasdaq Composite usually indicates strong performance among tech companies and a healthy market trend.

Frequently Asked Questions

1. Can I invest in Nasdaq from anywhere?
   Yes, you only need an online trading platform and internet access.
2. Is it riskier than other exchanges?
   It can be due to its focus on tech stocks, which tend to be more volatile.
3. How does it differ from the New York Stock Exchange (NYSE)?
   NYSE is more traditional with a physical trading floor, while Nasdaq is fully electronic and tech-focused.

💡 Conclusion:
Nasdaq is more than a stock exchange; it’s the heart of the global tech sector. Its electronic infrastructure, fast transactions, and concentration of innovative companies make it a benchmark for investors seeking growth in technology.