Coinbase has enabled stock trading for all users, and the interface is as good as you'd expect. But there's a downside to this new offering.

Coinbase has launched 24/5 commission-free stock and ETF trading for all U.S. users, expanding beyond crypto in a bid to become an “everything exchange” and diversify revenue.

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A demat account holds your securities electronically and becomes the final “delivery point” when a stock trade is completed.

Chris Davis is a Managing Editor on the Investing team. As a writer, he covered the stock market, investing strategies and investment accounts, and as a spokesperson, he appeared on NBC Bay Area and ...