Exchange-traded funds (ETFs) give investors an easy and low-cost way to spread their bets among hundreds and even thousands of companies, eliminating the need to try to find individual winning stocks. This broad-based diversification can help you reduce your risk while still allowing you to profit from powerful trends, such as the artificial intelligence (AI) boom.

Here are two ETFs that are particularly well constructed to deliver fortune-building gains to their shareholders in the years and decades ahead.

The Invesco QQQ ETF (NASDAQ: QQQ) is designed to track the Nasdaq-100 index, which is comprised of the 100 biggest non-financial companies in the Nasdaq Composite. It's chock-full of tech titans, including the popular "Magnificent Seven" stocks, which are all among the fund's top holdings.

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Source Fool.com