The Birth of Electronic Trading
Before NASDAQ existed, buying and selling stocks meant a physical location. Brokers met on a trading floor and negotiated prices face-to-face. The NASDAQ — short for National Association of Securities Dealers Automated Quotations — changed the format entirely. When it launched in 1971, it was the first stock market in the world to replace the floor with a computer network displaying real-time bid and ask prices for over-the-counter securities.
The concept was ahead of the execution. The original NASDAQ was a quotation system: it showed prices, but the trades themselves were still negotiated by phone. True electronic execution arrived gradually through the 1980s and 1990s, as computing power caught up and the exchange grew from a quote board into a full trading venue.
How NASDAQ Differs from the NYSE
The core difference between NASDAQ and the NYSE is market structure.
The NYSE is an auction market, with Designated Market Makers who maintain order in each stock. NASDAQ is a dealer market, with multiple market makers competing for each stock. A popular NASDAQ name might have 20 to 40 market makers, each quoting their own bid and ask. When you place an order to buy a NASDAQ stock, your broker routes it to the market maker showing the best price at that moment.
Competition among market makers generally produces tighter bid-ask spreads on actively traded stocks. For thinly traded names the dynamic flips. Market makers widen their quotes when volatility rises, which makes entering or exiting a position more expensive.
Listing Tiers
NASDAQ runs three listing tiers, each with different financial and governance requirements.
The NASDAQ Global Select Market is the top tier. Companies listed here meet the strictest financial and corporate-governance standards, and this is where the mega-caps live — Apple, Microsoft, Amazon, and so on. (Most EU broker apps — Trading 212, DeGiro, IBKR — let you buy these names directly without any extra setup.)
The NASDAQ Global Market, formerly called the NASDAQ National Market, is the middle tier. It holds established companies that clear moderate financial thresholds. A large share of smaller growth stocks trade here.
The NASDAQ Capital Market, formerly the NASDAQ SmallCap Market, is the entry level. The minimum share price to list is $4.00, reduced to $1.00 to stay listed. This tier is the bridge between full exchange listings and the OTC markets.
A company that trades below $1.00 for 30 consecutive days receives a delisting notice. It must either regain compliance or move to the OTC Bulletin Board. Delisting is a material event. It usually triggers forced selling, because many institutional investors are prohibited from holding non-exchange-listed securities.
The NASDAQ Composite Index
The NASDAQ Composite is a market-capitalization-weighted index covering every stock listed on the exchange — roughly 3,000 companies. Because NASDAQ lists a disproportionate share of technology and biotechnology firms, the Composite leans heavily toward the tech sector. That makes it more volatile than the Dow Jones or the S&P 500, but it also captures the growth side of the economy more directly.
The Composite hit an all-time high of 5,048.62 on March 10, 2000, the peak of the dot-com bubble. It then fell 78% to 1,114 by October 2002. It did not reclaim the 2000 high until April 2015 — fifteen years later. A full generation passed before the index was back where it started.
NASDAQ and Active Traders
A large share of the growth stocks, biotech names, and technology tickers most active traders follow are listed on NASDAQ or one of its smaller tiers. The exchange's sector mix aligns naturally with what growth-focused investors look for. Many of the small and mid-cap names that turn up on active-trader watchlists — particularly in biotech and clean tech — are NASDAQ-listed rather than NYSE-listed.
The exchange's electronic infrastructure also suits active traders. Order execution is fast, volume data is transparent, and the Level 2 quote display shows the full order book with every market maker and their current quotes. That kind of transparency supports many of the technical analysis tools and strategies used by short-term traders — reading the tape, analyzing order flow, spotting large block trades.
The Capital Market tier in particular generates a lot of low-priced movers. A stock hitting a new 52-week low at $1.61 on a NASDAQ SmallCap listing tells you immediately that the company is close to the $1.00 compliance line. That single fact — the exchange tier and its rules — reframes the chart before you read a single financial statement.
Knowing which exchange a stock trades on, and the rules that exchange enforces, is a basic part of due diligence. A stock on the NASDAQ Global Select Market has passed strict financial review. A stock on the OTC Bulletin Board may not even file reports with the SEC. The exchange itself tells you something about the quality and transparency of the company, before you open a single financial statement.
See also: The New York Stock Exchange (NYSE) · Understanding Penny Stocks · What Is an IPO? · Technical Analysis
