Anthony Di Pizio

2 days ago | fool.com | Anthony Di Pizio

C3.ai (AI 2.42%) was founded in 2009, long before the artificial intelligence (AI) boom captivated Wall Street. Not every business has the financial resources or technical expertise to develop AI from scratch, so many of them are turning to C3.ai, which supplies a portfolio of ready-made applications. C3.ai went public in 2020 during a frenzy in the tech sector, which quickly drove its stock to a peak of $161. It was wildly overvalued at that price, and it has since declined by around 84%.

2 days ago | fool.com | Anthony Di Pizio

Bill Holdings (BILL 1.11%) has a portfolio of software products designed to streamline accounts payable, accounts receivable, and expense management workflows for almost half a million small and mid-sized businesses (SMBs). Despite Bill's consistent revenue growth over the last few years, its stock is down 87% from its record high, which was set during the tech frenzy in 2021. It was unquestionably overvalued back then, but the stock is now trading near the cheapest level in its history.

3 days ago | fool.com | Anthony Di Pizio

Berkshire Hathaway (BRK.A -0.97%) (BRK.B -0.92%) is a holding company with a number of wholly owned subsidiaries and a $280 billion portfolio of publicly traded stocks and securities. It's also sitting on a whopping $347 billion in cash that can be deployed into new opportunities. Berkshire's CEO is none other than investing legend Warren Buffett. Had you invested $1,000 in the company when he took the helm in 1965, it would have been worth an eye-popping $44.7 million at the end of 2024.

3 days ago | fool.com | Anthony Di Pizio

Peloton Interactive (PTON 0.91%) stock peaked at $163 in 2021, which represented an eye-popping return of 460% for investors who bought it at the time of its initial public offering (IPO) the year before. But the stock has since lost 95% of its peak value, and a recovery appears uncertain. Consumers were buying at-home exercise equipment hand over fist at the height of the COVID-19 pandemic, so they could stay fit during the lockdowns and social restrictions.

3 days ago | fool.com | Anthony Di Pizio

Shares of Zscaler (ZS 0.74%) have soared by an eye-popping 51% in 2025 so far, bucking the pessimism in the broader market that was triggered by simmering global trade tensions. The cybersecurity giant continues to deliver spectacular financial results, beating its own expectations and consistently raising its forward guidance. With that said, Zscaler stock is still down 25% from the all-time high it set during 2021's tech sector frenzy.