The stock market is going 24 hours, 7 days a week

The Stock Market's Transition to 24/7 Trading

The stock market's traditional 9:30-to-4 workday, complete with opening and closing bells dating back to the 1870s, is becoming outdated. This change parallels how headsets worn on the New York Stock Exchange floor have become a relic of the past.

Wall Street is moving quickly to adopt the continuous trading model seen in cryptocurrency and prediction markets, responding to the needs of a new generation of retail traders who want nonstop market activity.

Expanding Trading Hours

Market Structure and Retail Involvement

This shift is fueled by a surge in retail investor participation, which now makes up at least 20% of daily U.S. trading volume. It also reflects the global demand for American equities worth trillions.

A version of this article originally appeared in Quartz’s members-only Weekend Brief newsletter. Quartz members get access to exclusive newsletters and more.

The move to round-the-clock trading marks the most significant transformation in market structure since electronic trading replaced the traditional trading floor.

Author’s Summary

The stock market is evolving from fixed hours to continuous trading, driven by rising retail demand and global interest, reshaping how equities are bought and sold.

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qz.com qz.com — 2025-11-04