Index S&P 500 will close 2025 with an advance of more than 17%consolidating a three-year bull cycle driven by enthusiasm around artificial intelligence. This year, the trend related to the sector has expanded. Shares of companies semiconductors They again led the index accompanied by construction-related companies data centersfundamental to technological development. Among the ten best-performing stocks in 2025, three correspond to data storage firms that are taking advantage of the commitment of major cloud service providers known as hyperscalerswho announced investment of over $440,000 million over the next twelve months to strengthen its capabilities in the field of artificial intelligence.
According to the annual balance, there was a shift in technological leadership: companies related to the management and construction of data infrastructure led the growth. Giants, like Microsoft corporation, Amazon.com Inc., Alphabet Inc Meta Platforms Inc. are among the main drivers of these investments. Companies like sand disk corporation, Western Digital corporation y Seagate Technology Holdings Plc is among the top four best-performing stocks in the S&P 500.
Corresponding shifts are recorded in the composition of the index. In 2025, such firms as Robinhood Markets Inc., sand disk, AppLovin corporation y Caravan Co., all with triple-digit valuations, among the top twenty performers of the year. Not all inclusions were successful: Trading desk Inc. was the worst of all, with a drop of almost 70%, at that time Block Inc. fell by more than 20% and Coinbase Global Inc lost more than 6%.
Enthusiasm about artificial intelligence has also contributed Palantir Technologies Inc., which posted triple-digit percentage growth for the third year in a row, thanks to interest from retail investors and the leadership of its CEO, Alex Karp. The stock currently trades at more than 180 times forward earnings, making it the third most valuable in the index, behind only Tesla Inc Warner Bros. Opening Inc.
Escalation c Warner Bros. Discovery rose nearly 175% on speculation of a possible sale. In October, the company began the official sale process, with Paramount Skydance corporation y Netflix as key stakeholders. Board of Directors Warner brothers. expressed his preference for the proposal of a Netflixand Larry Ellison, President Oracle Corp. and father of Paramount’s CEO, personally supports the rival proposal.
In contrast to the economic uncertainty and trade policy of the administration of US President Donald Trump, which is characterized by the imposition obligationadversely affected the companies consumption and to sector health care. The actions of such firms as Clorox company, Lamb Weston Holdings Inc., Campbell What. in Constellation brands Inc. entered the twenty with the worst results for the year. Chipatl Mexican Grill Inc. suffered a drop of almost 40% after two years of consecutive growth.
Unfavorable economic conditions also affected retail companies. Outdoor decks Corp., owner of the Hoka and Ugg brands, has lost nearly half its value, halting a nine-year rally amid weak earnings forecasts and analysts’ cut guidance. Mul
lulhemon Athletica Inc. ended its second double-digit annual decline with a drop of nearly 45%, amid a restructuring process following the departure of its CEO and the entry of an activist fund. Eliot Investment Management, which acquired a stake of more than $1 billion.
The health insurance sector has also failed to recover despite expectations of regulatory changes. Molina Healthcare Inc. fell more than 40% for the second year in a row. UnitedHealth Group Inc Hundreds Corp. has lost more than 30%, placing it among the twenty-five worst performers in the S&P 500. Some investors, such as manager Michael Berry, believe that current valuations can wait for a recovery and see potential for acquisitions through 2026 if prices remain low.
(Courtesy of Bloomberg)
