{"id":52874,"date":"2026-08-19T09:58:12","date_gmt":"2026-08-19T09:58:12","guid":{"rendered":"https:\/\/www.vtmarkets.com\/fr-eu\/uncategorized\/sp-500-under-pressure-as-tech-stocks-and-yields-weigh\/"},"modified":"2026-08-19T09:58:12","modified_gmt":"2026-08-19T09:58:12","slug":"sp-500-under-pressure-as-tech-stocks-and-yields-weigh","status":"publish","type":"post","link":"https:\/\/www.vtmarkets.com\/fr-eu\/analysis\/sp-500-under-pressure-as-tech-stocks-and-yields-weigh\/","title":{"rendered":"Le S&#038;P 500 sous pression, p\u00e9nalis\u00e9 par les valeurs technologiques et la hausse des rendements obligataires"},"content":{"rendered":"\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/www.vtmarkets.com\/wp-content\/uploads\/2026\/08\/amd2-1024x573.webp\" alt=\"S&amp;P 500 Sous pression : la tech et les rendements p\u00e8sent\" class=\"wp-image-64325\"\/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Points cl\u00e9s :<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Le S&amp;P 500 s\u2019est stabilis\u00e9 apr\u00e8s un repli men\u00e9 par la technologie qui a pes\u00e9 sur les actions am\u00e9ricaines.<\/li>\n\n\n\n<li>Les valeurs des semi-conducteurs et li\u00e9es \u00e0 l\u2019IA (intelligence artificielle) ont de nouveau recul\u00e9, les investisseurs revoyant les valorisations (prix jug\u00e9 \u00ab juste \u00bb par le march\u00e9) et les attentes de d\u00e9penses futures dans l\u2019IA.<\/li>\n\n\n\n<li>La hausse des rendements des bons du Tr\u00e9sor am\u00e9ricain et des prix du p\u00e9trole a pes\u00e9 sur les valorisations boursi\u00e8res, en maintenant des conditions financi\u00e8res plus strictes (cr\u00e9dit plus cher et moins disponible).<\/li>\n\n\n\n<li>Le S&amp;P 500 se maintient au-dessus du support \u00e0 7\u202f691, tandis que les intervenants surveillent un possible retour vers la zone de r\u00e9sistance 7\u202f700\u20137\u202f706.<\/li>\n\n\n\n<li>Les march\u00e9s suivent les minutes de la R\u00e9serve f\u00e9d\u00e9rale (compte rendu d\u00e9taill\u00e9 de la r\u00e9union), les rendements obligataires et l\u2019app\u00e9tit global pour le risque (envie d\u2019acheter des actifs risqu\u00e9s).<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p class=\"wp-block-paragraph\">Le S&amp;P 500 a retrouv\u00e9 de la volatilit\u00e9, les investisseurs arbitrant entre la dynamique r\u00e9cente des actions et la pression venue des valeurs technologiques, de la remont\u00e9e des rendements des bons du Tr\u00e9sor et de l\u2019\u00e9volution des anticipations sur la Fed.<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-rich is-provider-x wp-block-embed-x\"><div class=\"wp-block-embed__wrapper\">\n<blockquote class=\"twitter-tweet\" data-width=\"500\" data-dnt=\"true\"><p lang=\"en\" dir=\"ltr\">Stocks pressured as US-Iran ceasefire collapses, oil climbs: The 30-year Treasury yield hit its highest level since 2007 as oil climbed and chip stocks dragged Nasdaq futures lower <a href=\"https:\/\/t.co\/3CrBDBysjv\">https:\/\/t.co\/3CrBDBysjv<\/a> <a href=\"https:\/\/t.co\/zN4gKFNz55\">pic.twitter.com\/zN4gKFNz55<\/a><\/p>&mdash; Quartz (@qz) <a href=\"https:\/\/x.com\/qz\/status\/2089690568385552743?ref_src=twsrc%5Etfw\">August 18, 2026<\/a><\/blockquote><script async src=\"https:\/\/platform.x.com\/widgets.js\" charset=\"utf-8\"><\/script>\n<\/div><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Les contrats \u00e0 terme (futures, instruments pour se positionner sur un prix futur) sur actions am\u00e9ricaines se sont stabilis\u00e9s apr\u00e8s la baisse de la s\u00e9ance pr\u00e9c\u00e9dente, men\u00e9e par la technologie et les semi-conducteurs. Le S&amp;P 500 a recul\u00e9, les investisseurs r\u00e9\u00e9valuant les valorisations li\u00e9es \u00e0 l\u2019IA et les perspectives de d\u00e9penses technologiques.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ce repli intervient apr\u00e8s une phase de hausse des actions am\u00e9ricaines. Les op\u00e9rateurs cherchent \u00e0 savoir s\u2019il s\u2019agit d\u2019une correction de court terme (recul apr\u00e8s une hausse) ou d\u2019un changement plus durable des attentes.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Pourquoi le S&amp;P 500 est surveill\u00e9<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Le mouvement souligne la sensibilit\u00e9 du march\u00e9 \u00e0 deux sujets : la performance des valeurs technologiques et les anticipations de taux.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">La technologie reste un moteur du S&amp;P 500. Mais la faiblesse des semi-conducteurs relance une question : les investisseurs pourraient exiger des preuves plus solides de la hausse des b\u00e9n\u00e9fices li\u00e9s \u00e0 l\u2019IA avant d\u2019accepter des valorisations plus \u00e9lev\u00e9es.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Les rendements des bons du Tr\u00e9sor restent aussi d\u00e9terminants. Quand ils montent, le co\u00fbt de financement augmente, et les hypoth\u00e8ses de valorisation changent, surtout pour les secteurs de croissance (entreprises dont la valeur d\u00e9pend beaucoup des b\u00e9n\u00e9fices futurs).<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-rich is-provider-x wp-block-embed-x\"><div class=\"wp-block-embed__wrapper\">\n<blockquote class=\"twitter-tweet\" data-width=\"500\" data-dnt=\"true\"><p lang=\"en\" dir=\"ltr\">The Federal Reserve will release the deliberations that led to it holding rates unchanged at its meeting in July. <a href=\"https:\/\/t.co\/mA5TsXCpHC\">https:\/\/t.co\/mA5TsXCpHC<\/a><\/p>&mdash; U.S. News &amp; World Report (@usnews) <a href=\"https:\/\/x.com\/usnews\/status\/2089410941372846282?ref_src=twsrc%5Etfw\">August 17, 2026<\/a><\/blockquote><script async src=\"https:\/\/platform.x.com\/widgets.js\" charset=\"utf-8\"><\/script>\n<\/div><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Les march\u00e9s attendent aussi les minutes de la Fed, afin d\u2019affiner la trajectoire de politique mon\u00e9taire et l\u2019impact des attentes de taux sur les actifs risqu\u00e9s (actions, etc.).<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Niveaux techniques \u00e0 suivre<\/h2>\n\n\n\n<!-- TradingView Widget BEGIN --><div class=\"tradingview-widget-container\">  <div class=\"tradingview-widget-container__widget\"><\/div>  <div class=\"tradingview-widget-copyright\"><a href=\"https:\/\/www.tradingview.com\/symbols\/VANTAGE-SP500\/\" rel=\"noopener nofollow\" target=\"_blank\"><span class=\"blue-text\">SP500 chart<\/span><\/a><span class=\"trademark\"> by TradingView<\/span><\/div>  <script type=\"text\/javascript\" src=\"https:\/\/s3.tradingview.com\/external-embedding\/embed-widget-advanced-chart.js\" async>  {  \"allow_symbol_change\": true,  \"calendar\": false,  \"details\": false,  \"hide_side_toolbar\": true,  \"hide_top_toolbar\": false,  \"hide_legend\": false,  \"hide_volume\": false,  \"hotlist\": false,  \"interval\": \"D\",  \"locale\": \"en\",  \"save_image\": true,  \"style\": \"1\",  \"symbol\": \"VANTAGE:SP500\",  \"theme\": \"dark\",  \"timezone\": \"Etc\/UTC\",  \"backgroundColor\": \"#0F0F0F\",  \"gridColor\": \"rgba(242, 242, 242, 0.2)\",  \"watchlist\": [],  \"withdateranges\": false,  \"compareSymbols\": [],  \"support_host\": \"https:\/\/www.tradingview.com\",  \"studies\": [],  \"width\": 900,  \"height\": 500}  <\/script><\/div><!-- TradingView Widget END -->\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td class=\"has-text-align-center\" data-align=\"center\"><strong>Niveau de prix<\/strong><\/td><td class=\"has-text-align-center\" data-align=\"center\"><strong>Ce que le march\u00e9 surveille<\/strong><\/td><\/tr><tr><td>7\u202f706<\/td><td>Plus haut intraday (en s\u00e9ance) r\u00e9cent et r\u00e9sistance imm\u00e9diate<\/td><\/tr><tr><td>7\u202f700<\/td><td>R\u00e9sistance psychologique en cas de tentative de rebond<\/td><\/tr><tr><td>7\u202f696<\/td><td>Zone de cotation actuelle, rep\u00e8re de court terme<\/td><\/tr><tr><td>7\u202f691<\/td><td>Point bas de la s\u00e9ance et support imm\u00e9diat<\/td><\/tr><tr><td>7\u202f690<\/td><td>Support cl\u00e9 de court terme si la pression vendeuse continue<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Le S&amp;P 500 \u00e9volue autour de 7\u202f696, apr\u00e8s un reflux depuis le plus haut de s\u00e9ance proche de 7\u202f706.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Un passage au-dessus de 7\u202f700 signalerait un regain de dynamique \u00e0 court terme, avec 7\u202f706 comme prochaine r\u00e9sistance \u00e0 surveiller.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u00c0 la baisse, une cassure sous 7\u202f691 indiquerait un retour de la pression vendeuse, avec 7\u202f690 comme zone de support suivante.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Sc\u00e9narios haussier et baissier<\/h2>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/www.vtmarkets.com\/wp-content\/uploads\/2026\/08\/sp500198-1024x473.webp\" alt=\"S&amp;P 500 Sous pression : la tech et les rendements p\u00e8sent\" class=\"wp-image-65549\"\/><\/figure>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td class=\"has-text-align-center\" data-align=\"center\"><strong>Configuration<\/strong><\/td><td class=\"has-text-align-center\" data-align=\"center\"><strong>D\u00e9clencheur<\/strong><\/td><td class=\"has-text-align-center\" data-align=\"center\"><strong>R\u00e9action possible du march\u00e9<\/strong><\/td><\/tr><tr><td><strong>Tentative de rebond<\/strong><\/td><td>Retour au-dessus de 7\u202f700<\/td><td>Le S&amp;P 500 pourrait retester la r\u00e9sistance \u00e0 7\u202f706<\/td><\/tr><tr><td><strong>Rebond haussier<\/strong><\/td><td>Cassure au-dessus de 7\u202f706<\/td><td>La dynamique pourrait s\u2019am\u00e9liorer, les acheteurs reprenant la main \u00e0 court terme<\/td><\/tr><tr><td><strong>Consolidation en range<\/strong><\/td><td>Maintien entre 7\u202f691 et 7\u202f706<\/td><td>L\u2019indice pourrait rester dans une fourchette, le temps d\u2019un choix de direction<\/td><\/tr><tr><td><strong>Rupture baissi\u00e8re<\/strong><\/td><td>Passage sous 7\u202f691<\/td><td>La pression vendeuse pourrait s\u2019accentuer vers des supports plus bas<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Le <strong>sc\u00e9nario haussier<\/strong> suppose un retour au-dessus de <strong>7\u202f700<\/strong> puis une cassure de <strong>7\u202f706<\/strong>, signe d\u2019une dynamique de court terme plus favorable.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Le <strong>sc\u00e9nario baissier<\/strong> se met en place si le S&amp;P 500 passe sous <strong>7\u202f691<\/strong>, ce qui indiquerait que la pression vendeuse domine toujours et augmenterait le risque de baisse suppl\u00e9mentaire.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><em>Avertissement<\/em><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><em>Les niveaux de prix et sc\u00e9narios ci-dessus refl\u00e8tent l\u2019avis de l\u2019auteur au moment de la r\u00e9daction et ne constituent ni un conseil financier ni une recommandation officielle de VT Markets. Chaque investisseur doit faire sa propre analyse et g\u00e9rer le risque (limiter les pertes possibles).<\/em><\/p>\n\n\n\n\n<p class=\"wp-block-paragraph\"><b>Commencez \u00e0 trader d\u00e8s maintenant \u2014 cliquez <a href=\"https:\/\/www.vtmarkets.com\/fr-eu\/trade-now\/\">ici<\/a> pour cr\u00e9er votre compte r\u00e9el VT Markets.<\/b>\n\n<\/p>","protected":false},"excerpt":{"rendered":"<p>Alerte sur Wall Street : le S&#038;P 500 se stabilise apr\u00e8s un repli men\u00e9 par la tech. IA et semi-conducteurs corrigent, rendements et p\u00e9trole p\u00e8sent. Supports 7\u202f691\/7\u202f690, r\u00e9sistance 7\u202f700\u20137\u202f706, minutes Fed attendues.<\/p>\n","protected":false},"author":87,"featured_media":52873,"comment_status":"","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[28],"tags":[],"class_list":["post-52874","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-analysis"],"acf":{"acf_article_selection_author":null},"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO Pro 5.0.1 - aioseo.com -->\n\t<meta name=\"description\" content=\"Alerte sur Wall Street : le S&amp;P 500 se stabilise apr\u00e8s un repli men\u00e9 par la tech. IA et semi-conducteurs corrigent, rendements et p\u00e9trole p\u00e8sent. 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