{"id":52988,"date":"2026-08-21T14:21:23","date_gmt":"2026-08-21T14:21:23","guid":{"rendered":"https:\/\/www.vtmarkets.com\/fr-eu\/uncategorized\/lor-proche-de-4-600-dollars-la-baisse-du-dollar-et-les-rachats-de-treasuries-alimentant-la-volatilite\/"},"modified":"2026-08-21T14:21:23","modified_gmt":"2026-08-21T14:21:23","slug":"lor-proche-de-4-600-dollars-la-baisse-du-dollar-et-les-rachats-de-treasuries-alimentant-la-volatilite","status":"publish","type":"post","link":"https:\/\/www.vtmarkets.com\/fr-eu\/live-updates\/lor-proche-de-4-600-dollars-la-baisse-du-dollar-et-les-rachats-de-treasuries-alimentant-la-volatilite\/","title":{"rendered":"L\u2019or proche de 4 600 dollars, la baisse du dollar et les rachats de Treasuries alimentant la volatilit\u00e9"},"content":{"rendered":"<p>L\u2019or (XAU\/USD) a bri\u00e8vement franchi les 4 600 $ lors de la s\u00e9ance am\u00e9ricaine de vendredi, un plus haut depuis le 15 mai, avant de refluer vers 4 580 $ environ, tout en restant en bonne voie pour une troisi\u00e8me hausse hebdomadaire cons\u00e9cutive. Le m\u00e9tal gagne pr\u00e8s de 13 % ce mois-ci, apr\u00e8s que le Tr\u00e9sor am\u00e9ricain a annonc\u00e9 qu\u2019il doublerait les rachats destin\u00e9s \u00e0 soutenir la liquidit\u00e9 sur les titres d\u2019\u00c9tat \u00e0 plus longue maturit\u00e9, \u00e0 au moins 4 milliards de dollars par op\u00e9ration ; les rendements longs ont d\u2019abord recul\u00e9, puis ont effac\u00e9 une grande partie du mouvement. Le dollar am\u00e9ricain s\u2019est affaibli dans le sillage de cette dynamique, l\u2019indice du dollar (DXY) \u00e9voluant autour de 98,75, proche d\u2019un plus bas de trois mois, tandis que les achats des banques centrales et des flux plus soutenus vers les ETF adoss\u00e9s \u00e0 l\u2019or ont continu\u00e9 de soutenir la demande.<\/p>\n\n<p>L\u2019incertitude de politique mon\u00e9taire a \u00e9galement influenc\u00e9 les prix, la R\u00e9serve f\u00e9d\u00e9rale (Fed), sous la pr\u00e9sidence de Kevin Warsh, accordant moins de poids \u00e0 la \u00ab forward guidance \u00bb, et les derni\u00e8res statistiques am\u00e9ricaines sur l\u2019emploi et l\u2019inflation r\u00e9duisant la probabilit\u00e9 d\u2019une hausse de taux lors de la prochaine r\u00e9union. Des vents contraires persistent toutefois : des rendements du Tr\u00e9sor \u00e9lev\u00e9s augmentent le co\u00fbt d\u2019opportunit\u00e9 d\u2019un actif sans rendement, tandis que les risques inflationnistes li\u00e9s \u00e0 l\u2019\u00e9nergie demeurent, les prix du p\u00e9trole restant tributaires de l\u2019impasse entre les \u00c9tats-Unis et l\u2019Iran et de la cible de 2 % de la Fed.<\/p>\n\n<p>Sur le plan technique, XAU\/USD \u00e9volue au-dessus des moyennes mobiles simples (SMA) \u00e0 50, 100 et 200 jours, avec un RSI proche de 70 et un ADX autour de 32, tandis que le MACD demeure constructif. La r\u00e9sistance se situe vers 4 600 $, puis 4 750 $ ; les supports sont identifi\u00e9s \u00e0 4 514 $, 4 379 $, 4 172 $ et 4 000 $.<\/p>\n\n<h3>Strat\u00e9gies sur d\u00e9riv\u00e9s et consid\u00e9rations techniques<\/h3>\n\n<p>Nous estimons que les intervenants sur d\u00e9riv\u00e9s doivent faire preuve de prudence \u00e0 proximit\u00e9 de la r\u00e9sistance actuelle \u00e0 4 600 $, alors que l\u2019or inscrit un plus haut de trois mois. Avec un indice de force relative (RSI) qui oscille pr\u00e8s de 70, le march\u00e9 envoie des signaux de surachat, sugg\u00e9rant une pause \u00e0 court terme. Nous recommandons de recourir \u00e0 des strat\u00e9gies optionnelles, comme l\u2019achat de puts de protection \u00e0 court terme, afin de se couvrir contre un repli correctif potentiel en direction de la moyenne mobile simple (SMA) \u00e0 200 jours, situ\u00e9e \u00e0 4 514 $.<\/p>\n\n<p>Notre sc\u00e9nario haussier de long terme reste intact, port\u00e9 par un indice du dollar am\u00e9ricain proche d\u2019un plus bas de trois mois \u00e0 98,75. Historiquement, un dollar en repli soutient fortement les m\u00e9taux pr\u00e9cieux, \u00e0 l\u2019image des tendances macro\u00e9conomiques qui ont aliment\u00e9 les rallyes historiques de l\u2019or lors de cycles financiers pr\u00e9c\u00e9dents. Pour en tirer parti, nous privil\u00e9gions la mise en place de spreads haussiers via achats de calls (bull call spreads), avec des strikes visant 4 750 $ si l\u2019or parvient \u00e0 franchir puis \u00e0 consolider au-dessus de 4 600 $.<\/p>\n\n<h3>Fondamentaux de march\u00e9 et consid\u00e9rations de volatilit\u00e9<\/h3>\n\n<p>Il convient \u00e9galement de prendre en compte une demande sous-jacente extr\u00eamement solide, port\u00e9e par l\u2019accumulation des banques centrales et l\u2019augmentation des flux vers les fonds indiciels cot\u00e9s (ETF). \u00c0 titre d\u2019exemple, les banques centrales mondiales ont historiquement achet\u00e9 plus de 1 000 tonnes m\u00e9triques d\u2019or par an afin de diversifier leurs r\u00e9serves, ce qui contribue \u00e0 \u00e9tablir un plancher tr\u00e8s favorable pour le m\u00e9tal. Les traders peuvent vendre des puts couverts en cash (\u00ab cash-secured puts \u00bb) \u00e0 proximit\u00e9 des niveaux de support de 4 379 $ et 4 172 $ afin d\u2019encaisser une prime tout en se positionnant pour acheter le m\u00e9tal sur repli.<\/p>\n\n<p>Il faut toutefois rester vigilant : le doublement des rachats de liquidit\u00e9 du Tr\u00e9sor am\u00e9ricain, \u00e0 4 milliards de dollars par op\u00e9ration, maintient une forte volatilit\u00e9 sur les march\u00e9s obligataires. La hausse des prix de l\u2019\u00e9nergie li\u00e9e \u00e0 des blocages g\u00e9opolitiques menace \u00e9galement de rendre l\u2019inflation persistante, ce qui pourrait contraindre la R\u00e9serve f\u00e9d\u00e9rale \u00e0 ajuster sa trajectoire de politique mon\u00e9taire de mani\u00e8re inattendue. En cons\u00e9quence, nous sugg\u00e9rons d\u2019utiliser des straddles ou des strangles acheteurs (long straddles\/strangles) afin de profiter de cassures nettes et soudaines dans un sens comme dans l\u2019autre, au fur et \u00e0 mesure que ces incertitudes macro\u00e9conomiques se mat\u00e9rialisent.<\/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>L\u2019or flirte avec 4 600 $ puis retombe vers 4 580 $, mais signe une troisi\u00e8me hausse hebdomadaire. Dollar en berne, rachats du Tr\u00e9sor, banques centrales\/ETF soutiennent; surachat plaide prudence.<\/p>\n","protected":false},"author":87,"featured_media":49805,"comment_status":"","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[24],"tags":[],"class_list":["post-52988","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=\"L\u2019or flirte avec 4 600 $ puis retombe vers 4 580 $, mais signe une troisi\u00e8me hausse hebdomadaire. 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