Les actions technologiques américaines en forte baisse, la capitalisation de sept géants ayant disparu de plus de 800 milliards

【Global Network Finance Comprehensive Report】As of Friday’s close, the Nasdaq index has fallen 3.23% this week, marking the largest weekly drop since the “tariff shock” in April last year. The tech “Big Seven” have been the main contributors to the decline, with a cumulative market value evaporating by over $800 billion this week.

Among individual stocks, Meta had the worst performance, dropping over 11% in a week, marking its largest weekly decline since October 2025. The market is still digesting the impact of the company’s loss in the landmark “U.S. social media addiction case” ruling this week. According to Reuters, a federal court in California ruled that Meta had deliberately designed its algorithms to entice users into addiction, which could open the floodgates for a series of subsequent lawsuits.

Alongside Meta, Google’s parent company Alphabet, which was also ruled to have enticed users into social media addiction, dropped nearly 9% this week. Bloomberg analysis pointed out that the ruling could force both companies to adjust their core product content recommendation mechanisms, thereby impacting the fundamental basis of advertising revenue.

Microsoft fell 6.57% this week, with the company retreating nearly 34% from its historical highs. Nvidia and Amazon dropped nearly 3%, while Tesla’s decline was less than 2%.

Apple became the only tech stock among the Big Seven to maintain an increase, slightly rising this week. The consumer electronics giant will celebrate its 50th anniversary next week (April 1). According to tech media The Information, the company plans to allow more AI companies to access the Siri voice assistant beyond its existing partnership with ChatGPT, with specific plans to be disclosed at the WWDC conference in early June.

Outside of the Big Seven, storage giant Micron Technology recorded an overall decline of 15.53% this week. This round of decline began on March 18 when the company released financial results that were significantly better than expected, but the decline intensified after Google’s research institute showcased new AI memory compression technology “TurboQuant” this week.

This technology claims to compress cache memory usage in large language model inference to one-sixth, raising market concerns about demand for storage hardware. Micron Technology saw consecutive declines for the first four days of the week, with a rebound on Friday. However, while Friday stopped the “five-day losing streak,” the overall weekly decline still marked the largest of the year. (Chen Shiyi)

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