(BFM Stock Exchange) – The Parisian index abandons ground at mid -session on Monday, January 27. The fears about American tech caused by the Chinese AI start-up Deepseek spread to Schneider Electric and Legrand, bringing CAC 40 to fall back.

The end of the series is looming for the CAC 40. After having signed nine consecutive increases of increases, the Parisian index is down on Monday, January 27, backing from 0.66% to 7,875.52 points.

If the Paris Stock Exchange spends a gloomy Monday, it should be much worse on the side of Wall Street this afternoon. The Nasdaq 100 contract ends 4%, the one on the S&P 500 of 2.3%. NVIDIA is at the carpet in pre -opening exchanges, with a 12% drop which would amount to erasing more than $ 420 billion in market capitalization in one session. Broadcom plunges 13.8%.

This freezing wind that blows on tech is due to the many articles published this weekend which highlight the prowess of the young Chinese shoot Deepseek. This young company develops a language model, an artificial intelligence assistant (AI), comparable to the famous Openai chatgpt. Deepseek launched its flagship V3 model in December in China, before presenting R1, a model specializing in complex problem solving on January 20.

The operating cost of these models would be much less than those of large American groups.

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Nvidia and Schneider in the hard

The Deepseek application, moreover, delighted this most downloaded application status this weekend to Chatgpt from the App Store. If it is too early to know if Deepseek constitutes a paradigm shift in AI, the market is therefore fearful.

“Deepseek has built a model using chips with reduced capacity of Nvidia, which is impressive and therefore causes great agitation for American technological values ​​with massive pressure on the Nasdaq this morning,” observes Dan Ives de Wedbush.

“The question of the capacity of large technological groups to make profitable the gigantic investments suddenly seems to arise in markets, in a highly competitive environment as shown by the performance of Chinese artificial intelligence,” said Alexandre Baradez, market analyst at IG .

“The problem is that the AI ​​industry is embryonic. It is practically impossible to know how it will develop or what the competition will be in which the current winners will have to face, even if we firmly believe in its potential for Stimulate productivity in the future.

These fears on AI spread to certain values ​​of the Parisian square. In particular, those exposed to this theme via their exposure to datacenters. Schneider Electric plunges 10.3% while Legrand won 7.8%. The two companies develop different produced and services for data centers. Soitec, also exposed to data centers, lost 5.4%.

Bureau Veritas abandoned 2.6% after announcing that his discussions with his Swiss rival SGS for potential rapprochement had not succeeded.

Société Générale gained 1.36%, supported by an increase in recommendation to “overlap” from Barclays.

Vivendi takes 4.7% pulled by the increase in Universal Music Group, which he still has just under 10%. The record company takes 6% after announcing a multi -year agreement with the SPOTIFY streaming champion.

In the other markets, the euro is stable against the dollar at $ 1.0513. Oil is sluggish. The March contract on the Brent de Mer of the North takes 0.5% to 77.16 dollars a barrel while the same maturity on the WTI listed in New York gives up 0.5% to 74.24 dollars per barrel.