{"id":52970,"date":"2026-08-21T10:07:44","date_gmt":"2026-08-21T10:07:44","guid":{"rendered":"https:\/\/www.vtmarkets.com\/fr-ca\/uncategorized\/usdx-slides-as-treasury-buyback-shifts-market-sentiment\/"},"modified":"2026-08-21T10:07:44","modified_gmt":"2026-08-21T10:07:44","slug":"usdx-slides-as-treasury-buyback-shifts-market-sentiment","status":"publish","type":"post","link":"https:\/\/www.vtmarkets.com\/fr-ca\/analysis\/usdx-slides-as-treasury-buyback-shifts-market-sentiment\/","title":{"rendered":"L\u2019USDX recule alors que le rachat de bons du Tr\u00e9sor fait basculer le sentiment du march\u00e9"},"content":{"rendered":"\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" src=\"https:\/\/www.vtmarkets.com\/wp-content\/uploads\/2026\/07\/usdx-2.webp\" alt=\"usdx\" class=\"wp-image-62430\"\/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Points<\/strong> <strong>cl\u00e9s :<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Le dollar am\u00e9ricain a recul\u00e9 apr\u00e8s l\u2019annonce du Tr\u00e9sor am\u00e9ricain d\u2019un programme \u00e9largi de rachat d\u2019obligations \u00e0 plus longue \u00e9ch\u00e9ance (obligations qui arrivent \u00e0 \u00e9ch\u00e9ance plus loin dans le temps).<\/li>\n\n\n\n<li>La baisse des rendements \u00e0 long terme des bons du Tr\u00e9sor (le taux de rendement des obligations d\u2019\u00c9tat am\u00e9ricaines) a pes\u00e9 sur le billet vert, alors que les investisseurs r\u00e9\u00e9valuent l\u2019attrait des placements aux \u00c9tats-Unis.<\/li>\n\n\n\n<li>Le plan de rachat a raviv\u00e9 les questions sur l\u2019\u00e9volution future des rendements, et certains strat\u00e8ges y voient un facteur d\u00e9favorable pour le sentiment envers le dollar.<\/li>\n\n\n\n<li>L\u2019USDX se n\u00e9gocie pr\u00e8s de la <strong>zone de 98,68<\/strong> apr\u00e8s un repli vers des creux r\u00e9cents; les march\u00e9s surveillent si l\u2019indice peut se stabiliser.<\/li>\n\n\n\n<li>Les investisseurs suivent les messages de la R\u00e9serve f\u00e9d\u00e9rale (banque centrale des \u00c9tats-Unis), l\u2019\u00e9tat du march\u00e9 obligataire et les prochaines statistiques \u00e9conomiques.<\/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\">L\u2019USDX a subi une nouvelle vague de pression apr\u00e8s l\u2019annonce du Tr\u00e9sor am\u00e9ricain d\u2019un programme \u00e9largi de rachat d\u2019obligations \u00e0 long terme, ce qui a pouss\u00e9 les investisseurs \u00e0 revoir leurs attentes pour les rendements des bons du Tr\u00e9sor et pour la devise.<\/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 dollar tumbled by the most in three weeks to its weakest level since mid-May after the bond market rallied on the US Treasury Department\u2019s unexpected announcement that it is increasing buybacks of long-dated bonds. <a href=\"https:\/\/t.co\/v6jPvErNz9\">https:\/\/t.co\/v6jPvErNz9<\/a><\/p>&mdash; Bloomberg (@business) <a href=\"https:\/\/x.com\/business\/status\/2090131714349662634?ref_src=twsrc%5Etfw\">August 19, 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\">L\u2019annonce de rachat a r\u00e9duit la tension sur la partie longue du march\u00e9 des bons du Tr\u00e9sor (les obligations \u00e0 long terme), ce qui a fait baisser les rendements. Or, des rendements plus faibles diminuent l\u2019int\u00e9r\u00eat des placements am\u00e9ricains, ce qui peut r\u00e9duire la demande pour le dollar. L\u2019USDX s\u2019est ainsi rapproch\u00e9 de ses plus bas en trois mois.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Pourquoi les traders surveillent le dollar am\u00e9ricain<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Ce mouvement montre que le dollar r\u00e9agit de plus en plus aux d\u00e9cisions du Tr\u00e9sor et aux conditions financi\u00e8res (taux d\u2019int\u00e9r\u00eat, liquidit\u00e9 et app\u00e9tit pour le risque).<\/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\">Fed Chair Kevin Warsh has pledged price stability, but Treasury Secretary Scott Bessent\u2019s decision to double buybacks of longer-dated debt may complicate those efforts. Questions are mounting over how closely the two are coordinating, economist Gregory Daco says <a href=\"https:\/\/t.co\/Nbcw1uv8Md\">pic.twitter.com\/Nbcw1uv8Md<\/a><\/p>&mdash; Reuters (@Reuters) <a href=\"https:\/\/x.com\/Reuters\/status\/2090486519278796902?ref_src=twsrc%5Etfw\">August 20, 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\">Au-del\u00e0 de la r\u00e9action imm\u00e9diate, les investisseurs \u00e9valuent si une intervention accrue du Tr\u00e9sor pourrait influencer la perception de la politique budg\u00e9taire am\u00e9ricaine (gestion des d\u00e9penses et des revenus de l\u2019\u00c9tat) et la stabilit\u00e9 du march\u00e9 \u00e0 long terme.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">L\u2019attention se tourne vers les attentes li\u00e9es \u00e0 la R\u00e9serve f\u00e9d\u00e9rale, les donn\u00e9es \u00e9conomiques et la suite sur le march\u00e9 obligataire, qui pourraient orienter le dollar.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Niveaux cl\u00e9s \u00e0 surveiller<\/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-USDX\/\" rel=\"noopener nofollow\" target=\"_blank\"><span class=\"blue-text\">USDX 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:USDX\",  \"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 les traders surveillent<\/strong><\/td><\/tr><tr><td>99<\/td><td>R\u00e9sistance psychologique (niveau rond souvent surveill\u00e9) si l\u2019USDX poursuit son rebond<\/td><\/tr><tr><td>98,75<\/td><td>Sommet r\u00e9cent en s\u00e9ance et zone de r\u00e9sistance imm\u00e9diate<\/td><\/tr><tr><td>98,68<\/td><td>Zone actuelle et rep\u00e8re \u00e0 court terme<\/td><\/tr><tr><td>98,67<\/td><td>Zone de la moyenne mobile \u00e0 court terme (moyenne des prix r\u00e9cents utilis\u00e9e pour suivre la tendance)<\/td><\/tr><tr><td>98,65<\/td><td>Creux r\u00e9cent et support imm\u00e9diat<\/td><\/tr><tr><td>98,5<\/td><td>Zone de support importante si la vente reprend<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">L\u2019USDX se n\u00e9gocie autour de la <strong>zone de 98,68<\/strong> apr\u00e8s un rebond depuis le creux de s\u00e9ance pr\u00e8s de <strong>98,65<\/strong>, revenant vers la moyenne mobile \u00e0 court terme autour de <strong>98,67<\/strong>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Un passage au-dessus de <strong>98,75<\/strong> pourrait indiquer un regain de rythme \u00e0 court terme, avec la <strong>zone de r\u00e9sistance de 99,00<\/strong> en ligne de mire.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u00c0 la baisse, une cassure sous <strong>98,65<\/strong> pourrait signaler un retour de la pression vendeuse, avec la <strong>zone de support de 98,50<\/strong> comme prochain niveau \u00e0 surveiller.<\/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\/usdx218-1024x473.webp\" alt=\"usdx\" class=\"wp-image-65733\"\/><\/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>Sc\u00e9nario<\/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>Tentative de rebond<\/td><td>Se maintenir au-dessus de 98,65<\/td><td>L\u2019USDX pourrait retester la r\u00e9sistance de 98,75<\/td><\/tr><tr><td>Sortie haussi\u00e8re<\/td><td>Franchir 98,75<\/td><td>Le mouvement pourrait se renforcer vers 99,00<\/td><\/tr><tr><td>Consolidation en fourchette<\/td><td>Rester entre 98,65 et 98,75<\/td><td>L\u2019USDX pourrait \u00e9voluer lat\u00e9ralement pendant que le march\u00e9 cherche une direction<\/td><\/tr><tr><td>Rupture baissi\u00e8re<\/td><td>Passer sous 98,65<\/td><td>La pression vendeuse pourrait augmenter vers 98,50<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Le <strong>sc\u00e9nario haussier<\/strong> repose sur un maintien au-dessus de la <strong>zone de 98,65<\/strong> et un rebond vers <strong>98,75<\/strong>. Un d\u00e9passement durable de cette r\u00e9sistance pourrait indiquer une am\u00e9lioration du mouvement \u00e0 court terme.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Le <strong>sc\u00e9nario baissier<\/strong> prend de l\u2019importance si l\u2019USDX passe sous <strong>98,65<\/strong>, ce qui pourrait confirmer une faiblesse persistante et ouvrir la voie vers la <strong>zone de support de 98,50<\/strong>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><em>Avis de non-responsabilit\u00e9<\/em><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><em>Les niveaux de prix et sc\u00e9narios de march\u00e9 ci-dessus refl\u00e8tent l\u2019\u00e9valuation de l\u2019auteur au moment de la r\u00e9daction. Il ne s\u2019agit pas de conseils financiers ni d\u2019une recommandation officielle de VT Markets. Les march\u00e9s de l\u2019\u00e9nergie peuvent bouger rapidement en raison d\u2019\u00e9v\u00e9nements g\u00e9opolitiques, de changements d\u2019offre et de facteurs macro\u00e9conomiques (tendances g\u00e9n\u00e9rales comme la croissance et l\u2019inflation).<\/em><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">N\u00e9gociez des CFD sur l\u2019indice du dollar am\u00e9ricain avec VT Markets<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">L\u2019USDX demeure actif quand les attentes sur la politique de la R\u00e9serve f\u00e9d\u00e9rale, les risques d\u2019inflation, les prix du p\u00e9trole, la g\u00e9opolitique et les flux de devises (mouvements d\u2019achats et de ventes sur le march\u00e9 des changes) \u00e9voluent en m\u00eame temps.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Avec VT Markets, les traders peuvent acc\u00e9der \u00e0 des CFD sur l\u2019USDX, ainsi qu\u2019aux principales paires de devises, \u00e0 l\u2019or, au p\u00e9trole, aux indices, aux actions, aux FNB (fonds n\u00e9goci\u00e9s en Bourse, un fonds qui se transige comme une action) et \u00e0 d\u2019autres march\u00e9s mondiaux en CFD, sur une seule plateforme.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Cela permet de suivre le dollar et de comparer l\u2019\u00e9volution de USDJPY, EURUSD, XAUUSD (cours de l\u2019or en dollars US) et des march\u00e9s de l\u2019\u00e9nergie.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Utilisez les outils graphiques de VT Markets pour surveiller les supports, les r\u00e9sistances, les moyennes mobiles et les \u00ab cassures \u00bb (quand le prix franchit un niveau cl\u00e9) \u00e0 mesure que le prochain sc\u00e9nario sur l\u2019USDX se pr\u00e9cise.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Commencez \u00e0<a href=\"https:\/\/www.vtmarkets.com\/indices\/\" target=\"_blank\" rel=\"noopener\" title=\"\"> n\u00e9gocier des indices<\/a> avec VT Markets d\u00e8s aujourd\u2019hui.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u00c0 surveiller ensuite<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Le prochain mouvement de l\u2019USDX d\u00e9pendra de l\u2019\u00e9valuation du march\u00e9 concernant la politique du Tr\u00e9sor, les attentes envers la R\u00e9serve f\u00e9d\u00e9rale et la demande globale pour le dollar.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Facteurs cl\u00e9s :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>R\u00e9action du march\u00e9 des bons du Tr\u00e9sor :<\/strong> si les rachats d\u2019obligations soutiennent durablement les rendements \u00e0 long terme.<\/li>\n\n\n\n<li><strong>Messages de la R\u00e9serve f\u00e9d\u00e9rale :<\/strong> d\u00e9clarations de d\u00e9cideurs pouvant influencer les attentes de taux d\u2019int\u00e9r\u00eat.<\/li>\n\n\n\n<li><strong>Donn\u00e9es \u00e9conomiques am\u00e9ricaines :<\/strong> indicateurs d\u2019inflation et de croissance qui influencent la perspective sur la devise.<\/li>\n\n\n\n<li><strong>Rendements des bons du Tr\u00e9sor :<\/strong> nouveaux mouvements sur le march\u00e9 obligataire alors que les investisseurs r\u00e9\u00e9valuent les actifs am\u00e9ricains.<\/li>\n\n\n\n<li><strong>Sentiment sur les devises :<\/strong> la faiblesse r\u00e9cente se maintient-elle face aux grandes monnaies?<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Sur le plan technique, le march\u00e9 surveille si <strong>l\u2019USDX peut repasser au-dessus de 98,75<\/strong>, tandis que <strong>98,65 demeure le support cl\u00e9 \u00e0 court terme<\/strong> si la pression baissi\u00e8re revient.<\/p>\n\n\n\n\n<p class=\"wp-block-paragraph\"><b>Commencez \u00e0 n\u00e9gocier d\u00e8s maintenant \u2014 cliquez <a href=\"https:\/\/www.vtmarkets.com\/fr-ca\/trade-now\/\">ici<\/a> pour cr\u00e9er votre compte r\u00e9el VT Markets.<\/b>\n\n<\/p>","protected":false},"excerpt":{"rendered":"<p>Coup de frein pour le billet vert : le Tr\u00e9sor am\u00e9ricain \u00e9largit ses rachats d\u2019obligations longues, faisant baisser les rendements. L\u2019USDX r\u00f4de pr\u00e8s de 98,68; 98,75 r\u00e9siste, 98,65 soutient.<\/p>\n","protected":false},"author":87,"featured_media":52969,"comment_status":"","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[28],"tags":[],"class_list":["post-52970","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=\"Coup de frein pour le billet vert : le Tr\u00e9sor am\u00e9ricain \u00e9largit ses rachats d\u2019obligations longues, faisant baisser les rendements. 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