{"id":52985,"date":"2026-08-21T13:58:33","date_gmt":"2026-08-21T13:58:33","guid":{"rendered":"https:\/\/www.vtmarkets.com\/fr-eu\/uncategorized\/usdx-slides-as-treasury-buyback-shifts-market-sentiment\/"},"modified":"2026-08-21T13:58:33","modified_gmt":"2026-08-21T13:58:33","slug":"usdx-slides-as-treasury-buyback-shifts-market-sentiment","status":"publish","type":"post","link":"https:\/\/www.vtmarkets.com\/fr-eu\/analysis\/usdx-slides-as-treasury-buyback-shifts-market-sentiment\/","title":{"rendered":"Le USDX recule alors que les rachats de Treasuries modifient le sentiment de 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 cl\u00e9s :<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Le dollar am\u00e9ricain s\u2019est affaibli apr\u00e8s l\u2019annonce par le Tr\u00e9sor am\u00e9ricain d\u2019un \u00e9largissement des rachats d\u2019obligations \u00e0 plus longue \u00e9ch\u00e9ance (des titres de dette que l\u2019\u00c9tat rach\u00e8te sur le march\u00e9).<\/li>\n\n\n\n<li>La baisse des rendements des obligations du Tr\u00e9sor \u00e0 long terme (le taux de r\u00e9mun\u00e9ration de ces obligations) a pes\u00e9 sur le billet vert, les investisseurs revoyant leurs anticipations sur les actifs am\u00e9ricains.<\/li>\n\n\n\n<li>Ce plan de rachat a raviv\u00e9 les interrogations sur l\u2019\u00e9volution future des rendements, et plusieurs analystes y voient un signal d\u00e9favorable pour le sentiment sur le dollar.<\/li>\n\n\n\n<li>L\u2019USDX se traite pr\u00e8s de la zone des <strong>98,68<\/strong> apr\u00e8s un repli vers des plus bas r\u00e9cents, les op\u00e9rateurs surveillant une \u00e9ventuelle stabilisation de l\u2019indice.<\/li>\n\n\n\n<li>Les march\u00e9s suivent les messages de la R\u00e9serve f\u00e9d\u00e9rale (la banque centrale des \u00c9tats-Unis), l\u2019\u00e9tat du march\u00e9 obligataire et les prochaines statistiques pour d\u00e9terminer la suite.<\/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 de nouveau \u00e9t\u00e9 sous pression apr\u00e8s l\u2019annonce par le Tr\u00e9sor am\u00e9ricain d\u2019un \u00e9largissement des rachats d\u2019obligations \u00e0 plus longue \u00e9ch\u00e9ance, ce qui a conduit les investisseurs \u00e0 r\u00e9\u00e9valuer la trajectoire des rendements et du dollar.<\/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 a d\u00e9tendu le segment des obligations \u00e0 long terme (la partie \u00ab longues maturit\u00e9s \u00bb du march\u00e9), faisant reculer les rendements. Mais des rendements plus faibles r\u00e9duisent l\u2019attrait des placements en dollars, car la r\u00e9mun\u00e9ration attendue des actifs am\u00e9ricains baisse. L\u2019USDX a ainsi gliss\u00e9 vers des plus bas de 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\">Le mouvement montre que le dollar r\u00e9agit de plus en plus aux d\u00e9cisions du Tr\u00e9sor et aux conditions financi\u00e8res g\u00e9n\u00e9rales (co\u00fbt et disponibilit\u00e9 du financement dans l\u2019\u00e9conomie).<\/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 se demandent si une intervention plus marqu\u00e9e du Tr\u00e9sor peut influencer la perception de la politique budg\u00e9taire am\u00e9ricaine (gestion des d\u00e9penses et recettes publiques) et de la stabilit\u00e9 du march\u00e9 \u00e0 long terme.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">L\u2019attention se tourne d\u00e9sormais vers les anticipations sur la R\u00e9serve f\u00e9d\u00e9rale, les statistiques \u00e9conomiques et les prochains mouvements sur le march\u00e9 obligataire, qui peuvent influencer la trajectoire du dollar.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Niveaux techniques \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 surveillent les traders<\/strong><\/td><\/tr><tr><td>99<\/td><td>R\u00e9sistance psychologique (seuil rond souvent surveill\u00e9) si l\u2019USDX prolonge son rebond<\/td><\/tr><tr><td>98,75<\/td><td>Plus haut r\u00e9cent en s\u00e9ance et zone de r\u00e9sistance imm\u00e9diate<\/td><\/tr><tr><td>98,68<\/td><td>Zone de cotation actuelle et rep\u00e8re de court terme<\/td><\/tr><tr><td>98,67<\/td><td>Zone de la moyenne mobile de court terme (moyenne des cours r\u00e9cents, utilis\u00e9e pour lire la tendance)<\/td><\/tr><tr><td>98,65<\/td><td>Plus bas r\u00e9cent et support imm\u00e9diat<\/td><\/tr><tr><td>98,5<\/td><td>Zone de support importante si la pression vendeuse reprend<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">L\u2019USDX \u00e9volue autour de <strong>98,68<\/strong> apr\u00e8s s\u2019\u00eatre repris depuis un point bas proche de <strong>98,65<\/strong>, et revient vers la zone de la moyenne mobile de 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 signaler un regain de dynamique \u00e0 court terme, avec la zone de r\u00e9sistance des <strong>99,00<\/strong> en ligne de mire.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u00c0 l\u2019inverse, une cassure sous <strong>98,65<\/strong> pourrait traduire un retour des ventes, la zone de support des <strong>98,50<\/strong> devenant le prochain niveau \u00e0 suivre.<\/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>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>Tentative de rebond<\/td><td>Se maintenir au-dessus de 98,65<\/td><td>L\u2019USDX pourrait retester la r\u00e9sistance \u00e0 98,75<\/td><\/tr><tr><td>Sortie haussi\u00e8re<\/td><td>Franchir 98,75<\/td><td>La dynamique pourrait se renforcer vers 99,00<\/td><\/tr><tr><td>Consolidation en range<\/td><td>Rester entre 98,65 et 98,75<\/td><td>L\u2019USDX pourrait \u00e9voluer en couloir (sans tendance nette) le temps que le march\u00e9 se d\u00e9cide<\/td><\/tr><tr><td>Rupture baissi\u00e8re<\/td><td>Passe sous 98,65<\/td><td>La pression vendeuse pourrait s\u2019accentuer 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 zone des <strong>98,65<\/strong> et un retour vers <strong>98,75<\/strong>. Une installation durable au-dessus de cette r\u00e9sistance pourrait signaler une am\u00e9lioration de la dynamique \u00e0 court terme.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Le <strong>sc\u00e9nario baissier<\/strong> prend le dessus si l\u2019USDX passe sous <strong>98,65<\/strong>, ce qui sugg\u00e9rerait une faiblesse persistante et ouvrirait la voie vers le support des <strong>98,50<\/strong>.<\/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 pr\u00e9sent\u00e9s refl\u00e8tent l\u2019analyse de l\u2019auteur au moment de la r\u00e9daction. Ils ne constituent pas un conseil en investissement ni une recommandation officielle de VT Markets. Les march\u00e9s peuvent conna\u00eetre des variations rapides en fonction de l\u2019actualit\u00e9 g\u00e9opolitique, de l\u2019offre et de la demande, et des facteurs macro\u00e9conomiques (croissance, inflation, taux d\u2019int\u00e9r\u00eat).<\/em><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Trader l\u2019indice du dollar (USDX) via des CFD avec VT Markets<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">L\u2019USDX reste anim\u00e9 lorsque 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 (achats et ventes de monnaies) \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 ETF (fonds cot\u00e9s en Bourse qui r\u00e9pliquent un indice) et \u00e0 d\u2019autres march\u00e9s, via une seule plateforme.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Cela permet de suivre le mouvement global du dollar et de le comparer \u00e0 l\u2019\u00e9volution de l\u2019USDJPY et de l\u2019EURUSD (taux de change entre ces deux monnaies), de l\u2019or au comptant XAUUSD (prix de l\u2019or exprim\u00e9 en dollars) 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 suivre les supports, les r\u00e9sistances, les moyennes mobiles et les \u00ab cassures \u00bb (franchissements de niveaux) au fur et \u00e0 mesure que se dessine la prochaine configuration de march\u00e9 sur l\u2019USDX.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Commencez \u00e0 <a href=\"https:\/\/www.vtmarkets.com\/indices\/\" target=\"_blank\" rel=\"noopener\" title=\"\">trader les indices<\/a> avec VT Markets d\u00e8s aujourd\u2019hui.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Ce qu\u2019il faut surveiller ensuite<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Le prochain mouvement de l\u2019USDX d\u00e9pendra de la fa\u00e7on dont les march\u00e9s \u00e9valuent la politique du Tr\u00e9sor, les anticipations sur la R\u00e9serve f\u00e9d\u00e9rale et la demande globale de dollars.<\/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 Treasuries :<\/strong> savoir si les rachats d\u2019obligations soutiennent durablement les rendements \u00e0 long terme.<\/li>\n\n\n\n<li><strong>Communication de la R\u00e9serve f\u00e9d\u00e9rale :<\/strong> d\u00e9clarations des responsables susceptibles d\u2019influencer les anticipations de taux directeurs (taux d\u2019int\u00e9r\u00eat fix\u00e9s par la banque centrale).<\/li>\n\n\n\n<li><strong>Statistiques am\u00e9ricaines :<\/strong> indicateurs d\u2019inflation et de croissance susceptibles de peser sur la monnaie.<\/li>\n\n\n\n<li><strong>Rendements des Treasuries :<\/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> le point sur la poursuite, ou non, de la faiblesse du dollar face aux grandes monnaies.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">D\u2019un point de vue graphique, les traders surveillent un retour au-dessus de <strong>98,75<\/strong>, tandis que <strong>98,65<\/strong> reste le support cl\u00e9 \u00e0 court terme si la pression baissi\u00e8re revient.<\/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>Coup de froid sur le billet vert : l\u2019\u00e9largissement des rachats de Treasuries longs fait baisser les rendements, fragilisant l\u2019USDX vers 98,68. March\u00e9s attentifs \u00e0 la Fed et aux statistiques.<\/p>\n","protected":false},"author":87,"featured_media":52984,"comment_status":"","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[28],"tags":[],"class_list":["post-52985","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 5.0.1.1 - aioseo.com -->\n\t<meta name=\"description\" content=\"Coup de froid sur le billet vert : l\u2019\u00e9largissement des rachats de Treasuries longs fait baisser les rendements, fragilisant l\u2019USDX vers 98,68. 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