{"id":2933,"date":"2026-06-29T20:25:15","date_gmt":"2026-06-29T20:25:15","guid":{"rendered":"https:\/\/swissdaily.ch\/infrastructure-ia-2026\/"},"modified":"2026-06-29T20:25:15","modified_gmt":"2026-06-29T20:25:15","slug":"infrastructure-ia-2026","status":"publish","type":"post","link":"https:\/\/swissdaily.ch\/de\/infrastructure-ia-2026\/","title":{"rendered":"Premier semestre 2026 : l&rsquo;infrastructure IA s&rsquo;envole, le bitcoin et l&rsquo;or d\u00e9\u00e7oivent"},"content":{"rendered":"<h2>Un semestre sous le signe de la s\u00e9lectivit\u00e9<\/h2>\n<\/p>\n<p>\u00c0 mi-parcours d&rsquo;une ann\u00e9e marqu\u00e9e par des tensions g\u00e9opolitiques persistantes et une volatilit\u00e9 accrue, les march\u00e9s mondiaux ont livr\u00e9 un verdict tranch\u00e9 : les actifs directement li\u00e9s au d\u00e9ploiement mat\u00e9riel de l&rsquo;intelligence artificielle ont domin\u00e9, tandis que plusieurs valeurs refuges traditionnelles ont enregistr\u00e9 des performances d\u00e9cevantes. La corr\u00e9lation entre d\u00e9penses technologiques et rendements boursiers n&rsquo;a jamais \u00e9t\u00e9 aussi lisible.<\/p>\n<\/p>\n<p>Selon <strong>Dan Coatsworth<\/strong>, responsable des march\u00e9s chez <strong>AJ Bell<\/strong>, les entreprises b\u00e9n\u00e9ficiant directement du boom des d\u00e9penses en IA ont constitu\u00e9 les placements vedettes du semestre, alors que le bitcoin s&rsquo;est r\u00e9v\u00e9l\u00e9 \u00ab une vraie d\u00e9convenue \u00bb et que l&rsquo;or a perdu de son \u00e9clat malgr\u00e9 un contexte g\u00e9opolitique qui, en th\u00e9orie, lui est favorable.<\/p>\n<\/p>\n<h2>Les fabricants de puces m\u00e9moire : vainqueurs inattendus<\/h2>\n<\/p>\n<p>Les gains les plus spectaculaires sont venus d&rsquo;un segment peu m\u00e9diatis\u00e9 de la technologie : les fabricants de puces m\u00e9moire. La demande de puissance de calcul pour l&rsquo;IA a heurt\u00e9 une offre structurellement limit\u00e9e, propulsant les prix \u2014 et les cours boursiers \u2014 \u00e0 des niveaux rarement atteints en si peu de temps.<\/p>\n<\/p>\n<p><strong>SanDisk<\/strong> a domin\u00e9 le march\u00e9 am\u00e9ricain avec un gain sup\u00e9rieur \u00e0 <strong>850 %<\/strong> en six mois. <strong>Western Digital<\/strong>, <strong>Micron Technology<\/strong> et <strong>Seagate Technology<\/strong> ont toutes plus que tripl\u00e9 de valeur, un rythme de rendement qui requiert normalement plusieurs ann\u00e9es. Le moteur de cette hausse r\u00e9side dans le volume consid\u00e9rable de m\u00e9moire et de stockage haute vitesse n\u00e9cessaire pour entra\u00eener et op\u00e9rer les syst\u00e8mes d&rsquo;IA, alors que les grands groupes technologiques se livrent une course \u00e0 l&rsquo;agrandissement de leurs centres de donn\u00e9es.<\/p>\n<\/p>\n<p>D&rsquo;autres valeurs am\u00e9ricaines port\u00e9es par ce th\u00e8me \u2014 <strong>Intel<\/strong>, <strong>Dell<\/strong>, <strong>Advanced Micro Devices (AMD)<\/strong> et <strong>Applied Materials<\/strong> \u2014 ont progress\u00e9 entre <strong>150 % et 280 %<\/strong> depuis janvier, confirmant l&rsquo;ampleur du mouvement.<\/p>\n<\/p>\n<h3>R\u00e9percussions sur les march\u00e9s \u00e9mergents et asiatiques<\/h3>\n<\/p>\n<p>Cette ru\u00e9e a \u00e9galement dop\u00e9 plusieurs march\u00e9s \u00e9mergents, o\u00f9 des fondeurs asiatiques comme <strong>TSMC<\/strong> et <strong>SK Hynix<\/strong> p\u00e8sent lourd dans les indices. Le <strong>KOSPI<\/strong> sud-cor\u00e9en a doubl\u00e9 de valeur sur la p\u00e9riode, le <strong>Nikkei 225<\/strong> japonais a progress\u00e9 d&rsquo;environ <strong>40 %<\/strong>, et l&rsquo;indice <strong>MSCI Emerging Markets<\/strong> s&rsquo;est appr\u00e9ci\u00e9 de quelque <strong>27 %<\/strong>.<\/p>\n<\/p>\n<p>La performance europ\u00e9enne est rest\u00e9e plus modeste et diff\u00e9renci\u00e9e : le <strong>FTSE 100<\/strong> britannique a gagn\u00e9 <strong>7 %<\/strong>, le <strong>CAC 40<\/strong> fran\u00e7ais <strong>5 %<\/strong>, et le <strong>DAX<\/strong> allemand seulement <strong>2 %<\/strong>. \u00c0 l&rsquo;inverse, l&rsquo;indice <strong>MSCI India<\/strong> a recul\u00e9 de <strong>5 %<\/strong> et le <strong>Hang Seng<\/strong> hongkongais de <strong>6 %<\/strong>, illustrant la s\u00e9lectivit\u00e9 g\u00e9ographique du cycle en cours.<\/p>\n<\/p>\n<h2>L&rsquo;or et le bitcoin : deux refuges qui ont failli<\/h2>\n<\/p>\n<p>L&rsquo;or a offert aux investisseurs une trajectoire particuli\u00e8rement instable. Apr\u00e8s avoir atteint un record historique de <strong>5 594,82 dollars l&rsquo;once<\/strong> le 29 janvier, le m\u00e9tal pr\u00e9cieux a c\u00e9d\u00e9 environ <strong>28 %<\/strong> par rapport \u00e0 ce sommet \u2014 et ce malgr\u00e9 des tensions g\u00e9opolitiques qui auraient d\u00fb, selon la logique habituelle des march\u00e9s, soutenir la demande d&rsquo;actifs refuges.<\/p>\n<\/p>\n<p>L&rsquo;explication tient \u00e0 la remont\u00e9e des <strong>rendements obligataires<\/strong> et des taux servis sur les liquidit\u00e9s : ces instruments offrent d\u00e9sormais un revenu r\u00e9gulier qu&rsquo;un lingot d&rsquo;or ne procure pas, rendant le m\u00e9tal structurellement moins attractif dans un environnement de taux \u00e9lev\u00e9s.<\/p>\n<\/p>\n<p>Le bitcoin a affich\u00e9 une performance encore plus d\u00e9cevante, reculant de <strong>28 %<\/strong> depuis le d\u00e9but de l&rsquo;ann\u00e9e. L&rsquo;enthousiasme pour les cryptoactifs s&rsquo;est tari \u00e0 mesure que les capitaux se reportaient vers les valeurs technologiques \u00e0 fort ancrage industriel, r\u00e9duisant la prime sp\u00e9culative qui avait aliment\u00e9 les hausses pr\u00e9c\u00e9dentes.<\/p>\n<\/p>\n<h2>Les anciens champions de l&rsquo;IA rattrap\u00e9s par la r\u00e9alit\u00e9 du capital<\/h2>\n<\/p>\n<p>Le revers a \u00e9t\u00e9 particuli\u00e8rement s\u00e9v\u00e8re pour les grandes capitalisations technologiques jadis port\u00e9es aux nues. <strong>Meta<\/strong> et <strong>Microsoft<\/strong>, anciens porte-drapeaux du th\u00e8me IA, ont recul\u00e9 respectivement de <strong>14 %<\/strong> et <strong>24 %<\/strong> dividendes r\u00e9investis. Leurs investissements massifs dans l&rsquo;IA ont transform\u00e9 ces groupes en entreprises bien plus gourmandes en capital, \u00e9rodant la prime de croissance que leur accordaient les march\u00e9s.<\/p>\n<\/p>\n<p>Microsoft se traite d\u00e9sormais \u00e0 son niveau de valorisation le plus bas depuis dix ans, ce qui la place \u2014 tout comme Meta \u2014 en dessous de la valorisation de <strong>McDonald&rsquo;s<\/strong>. Ce sc\u00e9nario, impensable au plus fort de la fr\u00e9n\u00e9sie autour des \u00ab Magnificent 7 \u00bb, illustre la rapidit\u00e9 avec laquelle les march\u00e9s r\u00e9\u00e9valuent les mod\u00e8les \u00e9conomiques \u00e0 l&rsquo;\u00e9preuve des faits.<\/p>\n<\/p>\n<h2>Royaume-Uni : les OPA comme moteur de performance<\/h2>\n<\/p>\n<p>Sur le march\u00e9 britannique, ce sont les offres de rachat qui ont assur\u00e9 l&rsquo;essentiel de la performance sectorielle. Six soci\u00e9t\u00e9s du <strong>FTSE 100<\/strong>, dont <strong>Glencore<\/strong>, <strong>Schroders<\/strong> et <strong>Segro<\/strong>, ont suscit\u00e9 des marques d&rsquo;int\u00e9r\u00eat au premier semestre, signal que les acqu\u00e9reurs consid\u00e8rent encore les grandes capitalisations britanniques comme sous-valoris\u00e9es malgr\u00e9 trois ann\u00e9es de revalorisation progressive.<\/p>\n<\/p>\n<p>\u00c0 l&rsquo;inverse, les promoteurs immobiliers comme <strong>Persimmon<\/strong> ont souffert d&rsquo;un march\u00e9 du logement atone, tandis que des valeurs proches de la tech telles qu&rsquo;<strong>Experian<\/strong> et <strong>RELX<\/strong> ont \u00e9t\u00e9 p\u00e9nalis\u00e9es par les craintes de disruption li\u00e9e \u00e0 l&rsquo;IA \u2014 une ironie notable dans un semestre o\u00f9 l&rsquo;IA a par ailleurs g\u00e9n\u00e9r\u00e9 des rendements exceptionnels.<\/p>\n<\/p>\n<h2>La d\u00e9fense : un th\u00e8me qui s&rsquo;essouffle<\/h2>\n<\/p>\n<p>Apr\u00e8s une ann\u00e9e 2025 particuli\u00e8rement porteuse, le secteur de la d\u00e9fense a marqu\u00e9 le pas. Des titres comme <strong>BAE Systems<\/strong>, l&rsquo;allemand <strong>Rheinmetall<\/strong> ou l&rsquo;am\u00e9ricain <strong>Palantir<\/strong> ont tous c\u00e9d\u00e9 du terrain au cours du semestre. Les bonnes nouvelles sur la hausse des budgets militaires semblent d\u00e9sormais pleinement int\u00e9gr\u00e9es dans les cours, privant le secteur du catalyseur suppl\u00e9mentaire dont il aurait besoin pour progresser davantage.<\/p>\n<\/p>\n<p>Ce refroidissement confirme une dynamique classique : lorsqu&rsquo;un th\u00e8me d&rsquo;investissement devient consensuel, la prime de valorisation se comprime, et les capitaux migrent vers des opportunit\u00e9s moins explor\u00e9es \u2014 en l&rsquo;occurrence, les infrastructures mat\u00e9rielles de l&rsquo;IA.<\/p>\n<\/p>\n<p><em>Cet article est fourni \u00e0 titre informatif uniquement et ne constitue pas un conseil en investissement. Tout investissement comporte des risques ; les performances pass\u00e9es ne pr\u00e9jugent pas des performances futures.<\/em><\/p>","protected":false},"excerpt":{"rendered":"<p>Un semestre sous le signe de la s\u00e9lectivit\u00e9 \u00c0 mi-parcours d&rsquo;une ann\u00e9e marqu\u00e9e par des tensions g\u00e9opolitiques persistantes et une volatilit\u00e9 accrue, les march\u00e9s mondiaux ont livr\u00e9 un verdict tranch\u00e9 : les actifs directement li\u00e9s au d\u00e9ploiement mat\u00e9riel de l&rsquo;intelligence artificielle ont domin\u00e9, tandis que plusieurs valeurs refuges traditionnelles ont enregistr\u00e9 des performances d\u00e9cevantes. La [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":2932,"comment_status":"open","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[11,6],"tags":[],"class_list":["post-2933","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-actualites","category-economie"],"blocksy_meta":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.0 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>IA : l&#039;infrastructure explose, bitcoin et or d\u00e9\u00e7oivent<\/title>\n<meta name=\"description\" content=\"Premier semestre 2026 : les puces m\u00e9moire explosent avec +850%, tandis que bitcoin et or stagnent. 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