1. Vanguard S&P 500 ETF If I had to choose a single investment to lead my portfolio, it'd be the Vanguard S&P 500 ETF (VOO -0.17%). It's currently, and will likely always be, my largest holding.

The S&P 500 has reached a very high level of concentration, with the top 10 stocks driving 54% of its market cap gains since January 2021.

And Vanguard offers some of the most attractive ETFs around. Here are three Vanguard ETFs that can turn $500 per month into over $1 million. Image source: Getty Images.

38 S&P 500 members hit new 52-week highs, boosting several ETFs. Major indices slightly up, with financial, industrial, and retail sectors thriving.

As the following chart shows, the Vanguard S&P 500 ETF reached an all-time high in February 2020 and proceeded to plunge by more than 30% in less than a month.

Key PointsThe Vanguard S&P 500 ETF provides investors with exposure to the world's largest companies across every major industry sector.

By buying the Vanguard S&P 500 ETF, investors are betting on the continued ingenuity that has characterized the American economy. This has historically been a very lucrative perspective to have.

The S&P 500 has rebounded to reclaim new highs. However, that doesn't mean investors should wait for a pullback. Vanguard offers a number of great ETFs for investors to begin investing in right now.