Buffett -- as well as his late great partner Charlie Munger -- would recommend avoiding leverage at all costs in your portfolio. Why? Because when the market turns (which it will inevitably do at times), the downside can wipe you out. The levered Nasdaq ETF went into a massive drawdown in 2022, and that was just one year of bad returns.

A net seller of stocks in 2024, Warren Buffett did adopt a bullish stance on two companies that could see significant returns in 2025.

Warren Buffett is known for his investing success, generating market-beating returns over the long run. As chairman, he's helped Berkshire Hathaway deliver a compounded annual gain of more than 19% over 58 years -- that's as the S&P 500 posted a compounded increase of about 10% during that period.

Warren Buffett has created incredible wealth for shareholders of Berkshire Hathaway. It's been very inspiring to individual investors that he did it -- as he alluded to in his 1988 letter to shareholders -- by focusing on investing in quality companies and holding for the long term, without being fazed by occasional market volatility.