{"id":53055,"date":"2026-08-24T07:21:05","date_gmt":"2026-08-24T07:21:05","guid":{"rendered":"https:\/\/www.vtmarkets.com\/fr-eu\/uncategorized\/lindice-du-dollar-evolue-pres-de-ses-plus-bas-de-trois-mois-alors-que-se-profilent-des-rachats-de-treasuries-et-des-sanctions-contre-liran\/"},"modified":"2026-08-24T07:21:05","modified_gmt":"2026-08-24T07:21:05","slug":"lindice-du-dollar-evolue-pres-de-ses-plus-bas-de-trois-mois-alors-que-se-profilent-des-rachats-de-treasuries-et-des-sanctions-contre-liran","status":"publish","type":"post","link":"https:\/\/www.vtmarkets.com\/fr-eu\/live-updates\/lindice-du-dollar-evolue-pres-de-ses-plus-bas-de-trois-mois-alors-que-se-profilent-des-rachats-de-treasuries-et-des-sanctions-contre-liran\/","title":{"rendered":"L\u2019indice du dollar \u00e9volue pr\u00e8s de ses plus bas de trois mois, alors que se profilent des rachats de Treasuries et des sanctions contre l\u2019Iran"},"content":{"rendered":"<p>L\u2019indice dollar (DXY) a recul\u00e9 aux alentours de 98,80 lors de la s\u00e9ance asiatique de lundi, \u00e9voluant pr\u00e8s de ses plus bas de trois mois alors que les march\u00e9s dig\u00e9raient le plan du Tr\u00e9sor am\u00e9ricain visant \u00e0 acc\u00e9l\u00e9rer les rachats d\u2019obligations sur les maturit\u00e9s longues. Le secr\u00e9taire au Tr\u00e9sor, Scott Bessent, a indiqu\u00e9 que le d\u00e9partement doublerait les rachats \u00e0 4 milliards de dollars par op\u00e9ration afin de contenir la hausse des rendements \u00e0 30 ans, une d\u00e9cision qui ravive les inqui\u00e9tudes sur la trajectoire budg\u00e9taire des \u00c9tats-Unis. Les derni\u00e8res publications d\u2019inflation se sont mod\u00e9r\u00e9es, mais certains responsables de la R\u00e9serve f\u00e9d\u00e9rale (Fed) r\u00e9clament des preuves plus nettes d\u2019un reflux des pressions sur les prix ; selon le CME FedWatch, les march\u00e9s int\u00e8grent une probabilit\u00e9 de 41,0 % d\u2019une hausse de taux \u00e0 la prochaine r\u00e9union, contre 47 % il y a un mois.<\/p>\n<p>Bessent doit tenir une conf\u00e9rence de presse lundi sur de nouvelles sanctions am\u00e9ricaines contre l\u2019Iran, apr\u00e8s que le pr\u00e9sident Donald Trump a annonc\u00e9 ce qu\u2019il a qualifi\u00e9 d\u2019action \u00e9conomique la plus s\u00e9v\u00e8re jamais men\u00e9e contre T\u00e9h\u00e9ran, renfor\u00e7ant la perspective d\u2019un regain de demande de valeur refuge en faveur du dollar. Les strat\u00e9gistes de Scotiabank estiment que les efforts pour comprimer les rendements \u00e0 long terme rendent le billet vert plus vuln\u00e9rable aux craintes budg\u00e9taires. Le pr\u00e9sident de la Fed, Musalem, a point\u00e9 une inflation sous-jacente autour de 2,5 % \u00e0 3 % et \u00e9voqu\u00e9 une probabilit\u00e9 plus faible d\u2019atteindre 2 %, tandis que l\u2019indice FXS Fed Sentiment a recul\u00e9 de 0,34 \u00e0 132,42, avec un score FXS Speechtracker de 7\/10. Sur le plan technique, le DXY reste plafonn\u00e9 sous sa moyenne mobile simple (SMA) \u00e0 100 jours, avec un RSI (14) proche de 30 ; les r\u00e9sistances se situent \u00e0 99,70, 99,75 et 101,00, tandis qu\u2019un support est identifi\u00e9 \u00e0 98,50.<\/p>\n<h3>R\u00e9actions de march\u00e9 et analyse technique<\/h3>\n<p>Nous suivons de pr\u00e8s l\u2019indice dollar (DXY) alors qu\u2019il passe sous le seuil de 99,00 pour \u00e9voluer autour de 98,80, sur fond d\u2019inqui\u00e9tudes croissantes concernant la politique budg\u00e9taire am\u00e9ricaine. La d\u00e9cision offensive du Tr\u00e9sor de doubler les rachats d\u2019obligations longues \u00e0 4 milliards de dollars par op\u00e9ration a plafonn\u00e9 les rendements, mais p\u00e8se activement sur le billet vert. Pour les op\u00e9rateurs de d\u00e9riv\u00e9s, cela indique que le dollar fait les frais de ces politiques interventionnistes, cr\u00e9ant des opportunit\u00e9s de vente \u00e0 d\u00e9couvert lors de brefs rebonds.<\/p>\n<p>Historiquement, les phases d\u2019expansion massive de la dette f\u00e9d\u00e9rale \u2014 la dette nationale am\u00e9ricaine \u00e9tant estim\u00e9e d\u00e9passer 39 000 milliards de dollars en 2026 \u2014 ont affaibli structurellement le dollar lorsqu\u2019elles s\u2019accompagnent de mesures de plafonnement des rendements. On peut se r\u00e9f\u00e9rer \u00e0 des politiques similaires de contr\u00f4le de la courbe des taux dans les ann\u00e9es 1940 et \u00e0 l\u2019\u00e8re de l\u2019assouplissement quantitatif (QE) apr\u00e8s 2008 : la compression des rendements obligataires finit in\u00e9vitablement par se traduire par une d\u00e9pr\u00e9ciation de la devise. Les intervenants sur d\u00e9riv\u00e9s devraient privil\u00e9gier les options de vente (puts) ou des positions vendeuses sur futures, d\u2019autant que le DXY oscille proche de la borne basse de ses bandes de Bollinger, \u00e0 98,50.<\/p>\n<h3>Risques g\u00e9opolitiques et strat\u00e9gies de trading<\/h3>\n<p>Il convient toutefois de mettre en balance ce sc\u00e9nario baissier avec d\u2019\u00e9ventuels mouvements brusques de valeur refuge li\u00e9s \u00e0 une escalade des tensions g\u00e9opolitiques au Moyen-Orient. Alors que Scott Bessent se pr\u00e9pare \u00e0 annoncer des sanctions \u00e9conomiques in\u00e9dites contre l\u2019Iran, toute escalade pourrait inverser brutalement la baisse du dollar. Nous recommandons de recourir \u00e0 des strat\u00e9gies de collar ou d\u2019acheter des options d\u2019achat (calls) sur le DXY proches du cours (near-the-money) afin de se couvrir contre ces pics g\u00e9opolitiques.<\/p>\n<p>M\u00eame si le march\u00e9 n\u2019int\u00e8gre actuellement qu\u2019une probabilit\u00e9 de 41 % d\u2019une hausse de taux \u00e0 la prochaine r\u00e9union, le ton restrictif de responsables de la Fed comme Musalem sugg\u00e8re que l\u2019inflation reste tenace entre 2,5 % et 3 %. Techniquement, l\u2019indice demeure plafonn\u00e9 sous sa moyenne mobile simple \u00e0 100 jours, \u00e0 99,70, qui constitue une r\u00e9sistance cl\u00e9 pour calibrer les stop-loss. Nous conseillons aux traders de placer des stop-loss serr\u00e9s juste au-dessus de 99,75, tout en visant une cassure sous le support de 98,50 dans les semaines \u00e0 venir.<\/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>Alerte sur le billet vert : le DXY glisse vers 98,80, plomb\u00e9 par les rachats d\u2019obligations longues du Tr\u00e9sor et les craintes budg\u00e9taires, malgr\u00e9 une Fed prudente et un risque refuge li\u00e9 \u00e0 l\u2019Iran.<\/p>\n","protected":false},"author":87,"featured_media":49630,"comment_status":"","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[24],"tags":[],"class_list":["post-53055","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=\"Alerte sur le billet vert : le DXY glisse vers 98,80, plomb\u00e9 par les rachats d\u2019obligations longues du Tr\u00e9sor et les craintes budg\u00e9taires, malgr\u00e9 une Fed prudente et un risque refuge li\u00e9 \u00e0 l\u2019Iran.\" \/>\n\t<meta name=\"robots\" content=\"max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n\t<link rel=\"canonical\" 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