If you own an S&P 500 index fund , artificial intelligence is already a major part of your investment strategy.

In recent years, the stock market's gains have been fueled largely by a small group of tech giants that are aggressively investing in AI.

Nvidia , Microsoft , Apple , Google parent company Alphabet and Amazon — the five biggest names in the S&P 500 — now represent nearly 30% of the entire index. And that concentration is reshaping the way investors experience diversification.

More from ETF Strategist:

Here's a look at other stories offering insight on ETFs for investors.

S&P 500 is more concentrated with AI than ever. How to manage your risk

These ETF mistakes can 'quietly erode long-term returns,' advisor says

This is th

See Full Page