{"id":51397,"date":"2026-07-27T03:25:54","date_gmt":"2026-07-27T03:25:54","guid":{"rendered":"https:\/\/www.vtmarkets.com\/fr-eu\/uncategorized\/la-livre-sterling-progresse-le-dollar-recule-sur-fond-de-desescalade-entre-les-etats-unis-et-liran-et-de-chute-du-petrole-a-la-veille-de-la-reunion-de-la-fed\/"},"modified":"2026-07-27T03:25:54","modified_gmt":"2026-07-27T03:25:54","slug":"la-livre-sterling-progresse-le-dollar-recule-sur-fond-de-desescalade-entre-les-etats-unis-et-liran-et-de-chute-du-petrole-a-la-veille-de-la-reunion-de-la-fed","status":"publish","type":"post","link":"https:\/\/www.vtmarkets.com\/fr-eu\/live-updates\/la-livre-sterling-progresse-le-dollar-recule-sur-fond-de-desescalade-entre-les-etats-unis-et-liran-et-de-chute-du-petrole-a-la-veille-de-la-reunion-de-la-fed\/","title":{"rendered":"La livre sterling progresse, le dollar recule sur fond de d\u00e9sescalade entre les \u00c9tats-Unis et l\u2019Iran et de chute du p\u00e9trole, \u00e0 la veille de la r\u00e9union de la Fed"},"content":{"rendered":"<p>La livre sterling a prolong\u00e9 son rebond, propulsant le GBP\/USD au-dessus de la zone des 1,3300 en d\u00e9but de s\u00e9ance asiatique, signant une deuxi\u00e8me journ\u00e9e de hausse alors que le dollar am\u00e9ricain s\u2019assouplissait. Le repli du billet vert s\u2019est produit dans un contexte de d\u00e9tente de l\u2019indice du dollar (DXY), en retrait par rapport au plus haut mensuel retrouv\u00e9 la semaine derni\u00e8re. Les march\u00e9s ont r\u00e9agi au retour de perspectives d\u2019une voie diplomatique dans le conflit am\u00e9ricano-iranien vieux de cinq mois, apr\u00e8s la mise en pause, tard vendredi, de la campagne de bombardements des \u00c9tats-Unis \u2014 apr\u00e8s 13 nuits cons\u00e9cutives de frappes sur des cibles iraniennes \u2014 et la suspension par l\u2019Iran de ses attaques de repr\u00e9sailles contre des alli\u00e9s des \u00c9tats-Unis au Moyen-Orient.  <\/p>\n<p>Avec la dissipation d\u2019une partie de la prime de risque g\u00e9opolitique, la demande pour le dollar valeur refuge s\u2019est att\u00e9nu\u00e9e, tandis qu\u2019une nette baisse des prix du p\u00e9trole a calm\u00e9 les craintes d\u2019inflation et r\u00e9duit les anticipations de nouvelles hausses de taux de la R\u00e9serve f\u00e9d\u00e9rale (Fed). Les contraintes sur le transport maritime via le d\u00e9troit d\u2019Ormuz et le d\u00e9troit de Bab el-Mandeb ont toutefois contribu\u00e9 \u00e0 limiter la baisse du brut. Les op\u00e9rateurs ont \u00e9galement fait preuve de prudence avant la r\u00e9union de deux jours du FOMC, qui s\u2019ach\u00e8ve mercredi : les indications sur la trajectoire de politique mon\u00e9taire de la Fed, combin\u00e9es aux \u00e9volutions g\u00e9opolitiques, devraient orienter le dollar et influencer le GBP\/USD.<\/p>\n<h3>Strat\u00e9gies sur d\u00e9riv\u00e9s face \u00e0 l\u2019\u00e9volution des tensions g\u00e9opolitiques<\/h3>\n<p>Dans ce contexte de bascule rapide des tensions g\u00e9opolitiques, nous recommandons aux intervenants sur d\u00e9riv\u00e9s de se positionner en vue d\u2019une volatilit\u00e9 accrue sur la paire GBP\/USD \u00e0 l\u2019approche de la r\u00e9union du FOMC de mercredi. Alors que le taux de change d\u00e9passe 1,3350, l\u2019achat de options d\u2019achat (calls) de court terme sur la livre permet de capter l\u2019\u00e9lan haussier tout en limitant le risque baissier si les discussions diplomatiques s\u2019enlisent. Historiquement, lorsque l\u2019indice du dollar (DXY) se replie apr\u00e8s des sommets mensuels \u2014 testant actuellement un support proche de la zone 101,50\u2013102,00 \u2014 la livre sterling tend \u00e0 b\u00e9n\u00e9ficier d\u2019une pression acheteuse durable.<\/p>\n<p>Nous sugg\u00e9rons \u00e9galement de surveiller de pr\u00e8s les march\u00e9s des d\u00e9riv\u00e9s sur l\u2019\u00e9nergie, o\u00f9 le Brent a gliss\u00e9 vers 78 dollars le baril, sur fond d\u2019apaisement des craintes de perturbations de l\u2019offre au Moyen-Orient. Les op\u00e9rateurs peuvent recourir \u00e0 des spreads baissiers via puts (bear put spreads) sur contrats \u00e0 terme sur le p\u00e9trole afin de tirer parti d\u2019une poursuite du repli des prix, \u00e0 mesure que les craintes d\u2019inflation s\u2019estompent. Il convient toutefois de rester prudent et de maintenir des stop-loss serr\u00e9s sur ces positions, car des restrictions d\u2019acheminement via le d\u00e9troit de Bab el-Mandeb pourraient d\u00e9clencher rapidement un rebond marqu\u00e9 si les pourparlers se d\u00e9t\u00e9riorent.<\/p>\n<h3>Couverture de change et strat\u00e9gies de volatilit\u00e9 avant le FOMC<\/h3>\n<p>Enfin, nous conseillons aux cambistes de couvrir leurs expositions en recourant \u00e0 des options sur volatilit\u00e9 implicite avant la d\u00e9cision de politique mon\u00e9taire de la R\u00e9serve f\u00e9d\u00e9rale. Les prix de march\u00e9 int\u00e8grent actuellement une forte baisse des anticipations d\u2019une nouvelle hausse de taux, ce qui, historiquement, p\u00e8se sur le billet vert. En mettant en place des strat\u00e9gies de straddle sur l\u2019USD, il est possible de profiter de mouvements de march\u00e9 marqu\u00e9s dans un sens comme dans l\u2019autre, une fois que la Fed aura clarifi\u00e9 sa trajectoire de taux pour le reste de l\u2019ann\u00e9e.<\/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>Coup de th\u00e9\u00e2tre sur le FX : la livre rebondit au-del\u00e0 de 1,33 face \u00e0 un dollar en reflux, dop\u00e9e par l\u2019accalmie g\u00e9opolitique et la baisse du p\u00e9trole, avant le verdict FOMC.<\/p>\n","protected":false},"author":87,"featured_media":49716,"comment_status":"","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[24],"tags":[],"class_list":["post-51397","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=\"Coup de th\u00e9\u00e2tre sur le FX : la livre rebondit au-del\u00e0 de 1,33 face \u00e0 un dollar en reflux, dop\u00e9e par l\u2019accalmie g\u00e9opolitique et la baisse du p\u00e9trole, avant le verdict FOMC.\" \/>\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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