{"id":1063,"date":"2026-06-27T08:00:12","date_gmt":"2026-06-27T06:00:12","guid":{"rendered":"https:\/\/www.toutsurmesfinances.com\/actualites\/?p=1063"},"modified":"2026-06-27T10:05:01","modified_gmt":"2026-06-27T08:05:01","slug":"point-bourse-debut-dune-rotation-sectorielle","status":"publish","type":"post","link":"https:\/\/www.toutsurmesfinances.com\/actualites\/a\/point-bourse-debut-dune-rotation-sectorielle","title":{"rendered":"POINT BOURSE – D\u00e9but d\u2019une rotation sectorielle ?"},"content":{"rendered":"

Le premier semestre 2026 aura \u00e9t\u00e9 domin\u00e9 par deux forces contraires. D\u2019un c\u00f4t\u00e9, la flamb\u00e9e des valeurs li\u00e9es \u00e0 l\u2019intelligence artificielle (semi-conducteurs, data centers) qui a tir\u00e9 la cote technologique vers des records, l\u2019introduction en Bourse record de SpaceX<\/a> (86,25 milliards de dollars lev\u00e9s) posant un point d\u2019exclamation final \u00e0 cet engouement. De l\u2019autre, la guerre d\u00e9clench\u00e9e fin f\u00e9vrier entre les \u00c9tats-Unis, Isra\u00ebl et l\u2019Iran : le Brent a bondi jusqu\u2019\u00e0 126 dollars et l\u2019inflation en zone euro est remont\u00e9e \u00e0 3,2 %, poussant la BCE \u00e0 relever ses taux. Pourtant, les grands indices ont surmont\u00e9 le choc : sur le semestre, entre + 7 et + 9% pour les grands indices d\u2019actions am\u00e9ricaines, + 7,5% pour l\u2019EuroStoxx 600 + 7,5% et + 3% pour le CAC 40.<\/p>\n

<\/span>Coup d\u2019arr\u00eat en juin<\/span><\/h2>\n

En juin toutefois, la f\u00eate de l\u2019IA a tourn\u00e9 court, sur fond de doutes quant \u00e0 la rentabilit\u00e9 des investissements des hyperscalers (les g\u00e9ants mondiaux du cloud, NDLR) et aux valorisations. L\u2019indice Nasdaq des valeurs technologiques a c\u00e9d\u00e9 pr\u00e8s de 5%, tandis que le CAC 40, moins expos\u00e9 \u00e0 l\u2019IA, a repris 3%. En France, le retournement a \u00e9t\u00e9 plus brutal encore : l\u2019indice CAC Mid & Small, repr\u00e9sentatif de petites et moyennes capitalisations boursi\u00e8res, a chut\u00e9 de 9% en juin, effa\u00e7ant les gains du semestre. Il a pay\u00e9 l\u2019inversion simultan\u00e9e des trois th\u00e8mes qui l\u2019avaient port\u00e9 : les semi-conducteurs (- 40% pour Soitec) ; les biotechs, plomb\u00e9es par un Abivax en chute de 44% apr\u00e8s une \u00e9tude clinique de phase III d\u00e9cevante ; et la d\u00e9fense\/espace, ce segment reculant de pr\u00e8s de 30%. L\u2019affaire 2CRSI<\/a> a d\u2019ailleurs illustr\u00e9 la fin de la f\u00eate pour les valeurs IA\/data centers.<\/p>\n

<\/span>Surperformance des grandes capitalisations<\/span><\/h2>\n

Le cas fran\u00e7ais n\u2019est pas isol\u00e9 : hormis en Allemagne, les large caps (grandes capitalisations boursi\u00e8res) europ\u00e9ennes ont partout fait mieux que les petites et moyennes capitalisations, quand outre-Atlantique le Russell 2000 affiche plus de + 21% depuis le 1er janvier, son meilleur premier semestre depuis 1991. En juillet, deux rendez-vous domineront : la conclusion esp\u00e9r\u00e9e des accords de paix, et, surtout, les publications semestrielles qui permettront de mesurer l\u2019impact de la guerre.<\/p>\n","protected":false},"excerpt":{"rendered":"

Les march\u00e9s actions ont surmont\u00e9 le choc de la guerre au Moyen-Orient au premier semestre, selon le bilan d’IDMidCaps, bureau d’analyse financi\u00e8re ind\u00e9pendant sp\u00e9cialis\u00e9 sur les petites et moyennes valeurs fran\u00e7aises et europ\u00e9ennes. <\/p>\n","protected":false},"author":13728,"featured_media":1064,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-1063","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-a-la-une"],"acf":[],"yoast_head":"\nPOINT BOURSE - D\u00e9but d\u2019une rotation sectorielle ?<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.toutsurmesfinances.com\/actualites\/?p=1063\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"POINT BOURSE - D\u00e9but d\u2019une rotation sectorielle ?\" \/>\n<meta property=\"og:description\" content=\"Les march\u00e9s actions ont surmont\u00e9 le choc de la guerre au Moyen-Orient au premier semestre, selon le bilan d'IDMidCaps, bureau d'analyse financi\u00e8re ind\u00e9pendant sp\u00e9cialis\u00e9 sur les petites et moyennes valeurs fran\u00e7aises et europ\u00e9ennes.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.toutsurmesfinances.com\/actualites\/?p=1063\" \/>\n<meta property=\"og:site_name\" content=\"Actualit\u00e9s\" \/>\n<meta property=\"article:published_time\" content=\"2026-06-27T06:00:12+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-06-27T08:05:01+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.toutsurmesfinances.com\/actualites\/wp-content\/uploads\/sites\/12\/2026\/06\/point-bourse-marches-scaled.webp\" \/>\n\t<meta property=\"og:image:width\" content=\"823\" \/>\n\t<meta property=\"og:image:height\" content=\"463\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/webp\" \/>\n<meta name=\"author\" content=\"dscherrer\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u00c9crit par\" \/>\n\t<meta name=\"twitter:data1\" content=\"dscherrer\" \/>\n\t<meta name=\"twitter:label2\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.toutsurmesfinances.com\/actualites\/?p=1063\",\"url\":\"https:\/\/www.toutsurmesfinances.com\/actualites\/?p=1063\",\"name\":\"POINT BOURSE - 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