{"id":51324,"date":"2026-07-24T09:56:09","date_gmt":"2026-07-24T09:56:09","guid":{"rendered":"https:\/\/www.vtmarkets.com\/fr-eu\/uncategorized\/les-actions-mondiales-reculent-la-flambee-du-petrole-et-les-craintes-de-stagflation-penalisent-la-tech-et-creusent-les-spreads-du-haut-rendement\/"},"modified":"2026-07-24T09:56:09","modified_gmt":"2026-07-24T09:56:09","slug":"les-actions-mondiales-reculent-la-flambee-du-petrole-et-les-craintes-de-stagflation-penalisent-la-tech-et-creusent-les-spreads-du-haut-rendement","status":"publish","type":"post","link":"https:\/\/www.vtmarkets.com\/fr-eu\/live-updates\/les-actions-mondiales-reculent-la-flambee-du-petrole-et-les-craintes-de-stagflation-penalisent-la-tech-et-creusent-les-spreads-du-haut-rendement\/","title":{"rendered":"Les actions mondiales reculent, la flamb\u00e9e du p\u00e9trole et les craintes de stagflation p\u00e9nalisent la tech et creusent les spreads du haut rendement"},"content":{"rendered":"<p>Les actions am\u00e9ricaines ont recul\u00e9, un pic des prix du p\u00e9trole et des craintes de stagflation pesant sur l\u2019app\u00e9tit pour le risque. Le S&#038;P 500 a c\u00e9d\u00e9 1,21% et le Nasdaq a d\u00e9croch\u00e9 de 2,15%, tandis que des ventes post-publication de r\u00e9sultats sur Tesla et Alphabet ont accentu\u00e9 la d\u00e9route, les titres abandonnant respectivement 14,52% et 7,13%. Ce mouvement a fait plonger l\u2019indice des \u00ab\u202fMag 7\u202f\u00bb de 4,78%, sa plus forte baisse quotidienne depuis la semaine des turbulences du \u00ab\u202fLiberation Day\u202f\u00bb en 2025, tandis que les spreads du haut rendement (HY) am\u00e9ricain se sont \u00e9cart\u00e9s.<\/p>\n<p>La vague de ventes s\u2019est propag\u00e9e \u00e0 l\u2019Europe, o\u00f9 le STOXX 600 a perdu 1,18%, et le CAC 40 et le DAX ont recul\u00e9 de 1,64% et 1,56%, tandis que le FTSE MIB italien a chut\u00e9 de 2,80%. L\u2019Asie a prolong\u00e9 les pertes, emmen\u00e9e par le KOSPI sud-cor\u00e9en en baisse de 5,62% et le Nikkei japonais en retrait de 2,87%, tandis que le CSI 300 a c\u00e9d\u00e9 1,17% et le Hang Seng de Hong Kong 1,27%, alors que le S&#038;P\/ASX 200 australien a limit\u00e9 son repli \u00e0 0,93%. Les contrats \u00e0 terme am\u00e9ricains \u00e9taient plus stables, avec des futures sur le S&#038;P 500 en baisse de 0,08% et ceux sur le Nasdaq en retrait de 0,34%, tandis qu\u2019Intel a pr\u00e9vu un chiffre d\u2019affaires au T3 de 15,8 \u00e0 16,8 Md$ contre une estimation moyenne de 15,1 Md$, faisant progresser le titre de 4,5% apr\u00e8s cl\u00f4ture.<\/p>\n<h3>Volatilit\u00e9 de march\u00e9 et strat\u00e9gies de couverture<\/h3>\n<p>Nous observons une nette hausse de la volatilit\u00e9 des march\u00e9s \u00e0 la suite de la r\u00e9cente correction des valeurs technologiques et de l\u2019envol\u00e9e du p\u00e9trole, qui a propuls\u00e9 le Brent vers 90 dollars le baril. Alors que l\u2019indice de volatilit\u00e9 VIX a bondi au-del\u00e0 du seuil cl\u00e9 de 20, nous estimons que les intervenants sur d\u00e9riv\u00e9s doivent se pr\u00e9parer \u00e0 une p\u00e9riode prolong\u00e9e de turbulences au cours des prochaines semaines. La couverture de portefeuilles actions long via des options de vente (puts) d\u00e9fensives sur le S&#038;P 500 et le Nasdaq-100 constitue d\u00e9sormais notre recommandation principale.<\/p>\n<p>Les fortes baisses d\u2019Alphabet et de Tesla ont port\u00e9 la volatilit\u00e9 implicite des m\u00e9ga-capitalisations technologiques \u00e0 des niveaux tr\u00e8s \u00e9lev\u00e9s. Pour en tirer parti, nous recommandons de recourir \u00e0 des spreads de cr\u00e9dit \u00e0 risque d\u00e9fini, tels que des bear call spreads, sur les valeurs tech en sous-performance afin d\u2019encaisser des primes \u00e9lev\u00e9es. \u00c0 d\u00e9faut, il est possible de mettre en place des calendar spreads sur des g\u00e9ants technologiques dont la publication des r\u00e9sultats est imminente afin de capter l\u2019\u00e9crasement de volatilit\u00e9 attendu.<\/p>\n<h3>D\u00e9riv\u00e9s sur l\u2019\u00e9nergie et couverture transfrontali\u00e8re<\/h3>\n<p>Avec la mont\u00e9e des craintes de stagflation, les d\u00e9riv\u00e9s sur l\u2019\u00e9nergie offrent une opportunit\u00e9 tactique attractive, les cours du p\u00e9trole demeurant tr\u00e8s volatils. Nous sugg\u00e9rons aux op\u00e9rateurs d\u2019envisager des bull call spreads sur les contrats \u00e0 terme Brent Crude ou sur de grands ETF du secteur de l\u2019\u00e9nergie afin de capter un potentiel de hausse suppl\u00e9mentaire tout en limitant le risque de baisse. Historiquement, lors de chocs comparables tir\u00e9s par le p\u00e9trole, les options sur le secteur de l\u2019\u00e9nergie ont r\u00e9guli\u00e8rement surperform\u00e9 les couvertures plus larges du march\u00e9.<\/p>\n<p>Compte tenu des fortes baisses du Nikkei et du KOSPI, nous devrions \u00e9galement envisager des strat\u00e9gies de couverture transfrontali\u00e8res. Nous identifions des opportunit\u00e9s d\u2019achat d\u2019options de vente sur des ETF r\u00e9pliquant des indices asiatiques afin de se pr\u00e9munir contre un risque de contagion globale. Cette approche multi-actifs prot\u00e9gera les portefeuilles si la correction actuelle s\u2019aggrave et d\u00e9bouche sur un appel de marge plus g\u00e9n\u00e9ralis\u00e9 \u00e0 l\u2019\u00e9chelle mondiale.<\/p>\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>Attention, coup de froid global : Wall Street d\u00e9croche, p\u00e9trole \u00e0 90$ et peur de stagflation dopent le VIX. Tesla\/Alphabet plombent les \u00ab Mag 7 \u00bb. Europe\/Asie suivent ; couverture options recommand\u00e9e.<\/p>\n","protected":false},"author":87,"featured_media":49695,"comment_status":"","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[24],"tags":[],"class_list":["post-51324","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-live-updates"],"acf":{"acf_article_selection_author":null},"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO Pro 5.0.1.1 - aioseo.com -->\n\t<meta name=\"description\" content=\"Attention, coup de froid global : Wall Street d\u00e9croche, p\u00e9trole \u00e0 90$ et peur de stagflation dopent le VIX. Tesla\/Alphabet plombent les \u00ab Mag 7 \u00bb. 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