Big Data firm Palantir was the best performing large-company U.S. stock of 2024, returning 340.5% on the year.

That's music to the ears of Vistra, which cheered the market by acquiring more nuclear power capacity in 2024. Investors eagerly await updates on whether it will sign a deal with a cloud services company, although news of a fire at its California battery plant briefly sent shares sharply lower on Jan. 17.

U.S. stocks ended lower as tech shares recorded losses, while Morgan Stanley and Bank of America beat earnings expectations.

The S&P 500 index’s biggest sector, information technology, was rising sharply Friday afternoon, but the gains were not quite large enough to lift it into positive territory so far in 2025. The tech sector was up 1.

ETFs can hold hundreds or even thousands of individual stocks, but the Roundhill ETF only holds 50. That means it's relatively concentrated, which can be a recipe for volatility, so it's mainly suitable for investors who already have a diversified portfolio of other ETFs and/or stocks.

Since 2020, the Magnificent 7 stocks have soared an average of 640%, dwarfing the SP 500s 100% gain and now accounting for 34% of the indexs weight, according to Jefferies. Performance within the group varies widely,

The S&P 500 and Nasdaq have both felt pressure as shares of major tech companies came under pressure Monday. Investors continue to keep a close eye on rising Treasury yields, which heighten worries about valuations, particularly for some of the market's most highly valued names.

Producer price data signals softer inflation, lifting Dow. Nasdaq, S&P 500 under pressure as Nvidia and Meta fall. CPI report looms for further insights.

NVIDIA Corp. NVDA shares dipped 6.2% on Tuesday after hitting a record high level. Tesla Inc. TSLA shares fell over 4% after BofA Securities downgraded the stock from Buy to Neutral, while Meta Platforms Inc. META lost nearly 2% during the session.

Shares of equipment rental company United Rentals (NYSE:URI) jumped 5.3% in the pre-market session after the company announced it would acquire H&E Equipment Services (HEES) for $92 per share in cash, valuing the deal at approximately $4.8 billion, including $1.4 billion in net debt.

The biggest US tech stocks have enjoyed an earnings bonanza in the past two years, leading to their significant outperformance of the broader market.

Artificial intelligence and cryptocurrency have been rewarding investment themes in recent years. For instance, chipmaker Nvidia has seen its stock price increase more than 840% since December 2022, and Bitcoin has returned more than 520% during the same period.