Bubble talk has been rising on Wall Street in the years since ChatGPT set off an AI frenzy in the stock market.

Here are five signs to look for to judge whether we’re in bubble market territory and what we’ll likely see if we’re there. There’s an old saying on Wall Street: “No one rings a bell at the top.” It ...

Quantum computing stocks have absolutely dominated this year, despite challenging and uncertain macroeconomic conditions.

Valuations for the biggest stocks in the S&P 500 (^GSPC) are starting to look stretched, raising fresh concerns about ...

Tech’s strength has people talking about bubbles once again—and not without evidence. Consider: The top 10 companies in the S&P 500 today are more overvalued than they were during the dot-com era.

Additionally, the frequency of positive returns was no less than 80 percent for any index in any period. They were 100 ...

A Bank of America analyst sees a stock bubble forming in the second half of 2025, fueled by the prospect of lower interest ...

Palantir stock has risen by 85% so far this year, making it the top-performing company in the S&P 500 and Nasdaq-100.

With Wall Street's surge to record highs, the U.S. stock market looks nearly as expensive as ever, and investors are debating ...

In the late 1990s, mania over internet businesses created a stock market bubble. Tech companies added “.com” to their names and watched their valuations soar. The Nasdaq skyrocketed nearly ...

The stock market has been on a tear over the past two years, with the S&P 500 increasing around 25 percent in both 2023 and 2024. In 2024 alone, the index closed at record highs more than 50 times ...