{"id":51892,"date":"2026-08-03T09:22:23","date_gmt":"2026-08-03T09:22:23","guid":{"rendered":"https:\/\/www.vtmarkets.com\/fr-eu\/uncategorized\/la-fed-maintient-ses-taux-tandis-que-washington-et-tokyo-coordonnent-une-intervention-sur-le-yen-lusd-jpy-recule-et-le-petrole-chute-sur-fond-de-report-concernant-liran\/"},"modified":"2026-08-03T09:22:23","modified_gmt":"2026-08-03T09:22:23","slug":"la-fed-maintient-ses-taux-tandis-que-washington-et-tokyo-coordonnent-une-intervention-sur-le-yen-lusd-jpy-recule-et-le-petrole-chute-sur-fond-de-report-concernant-liran","status":"publish","type":"post","link":"https:\/\/www.vtmarkets.com\/fr-eu\/live-updates\/la-fed-maintient-ses-taux-tandis-que-washington-et-tokyo-coordonnent-une-intervention-sur-le-yen-lusd-jpy-recule-et-le-petrole-chute-sur-fond-de-report-concernant-liran\/","title":{"rendered":"La Fed maintient ses taux tandis que Washington et Tokyo coordonnent une intervention sur le yen ; l\u2019USD\/JPY recule et le p\u00e9trole chute sur fond de report concernant l\u2019Iran"},"content":{"rendered":"<p>Les grandes banques centrales ont maintenu une politique inchang\u00e9e : la R\u00e9serve f\u00e9d\u00e9rale, la Banque d\u2019Angleterre et la Banque du Japon ont laiss\u00e9 leurs taux au jour le jour stables. Les march\u00e9s ont \u00e9galement d\u00fb se contenter d\u2019un communiqu\u00e9 de la Fed tr\u00e8s succinct, marqu\u00e9 toutefois par l\u2019apparition de trois dissidents : Logan, Hammack et Kashkari. Le pr\u00e9sident de la Fed, Kevin Warsh, n\u2019a fourni aucune indication prospective, tout en soulignant que la remont\u00e9e des rendements nominaux et r\u00e9els exerce un effet restrictif sur les conditions financi\u00e8res. Sur le FX, l\u2019USD\/JPY a recul\u00e9 d\u2019environ 600 pips, soit 4%, et est pass\u00e9 sous sa moyenne mobile \u00e0 200 jours (SMA) pour la premi\u00e8re fois depuis octobre 2025, apr\u00e8s une intervention du minist\u00e8re japonais des Finances coordonn\u00e9e avec les \u00c9tats-Unis afin d\u2019enrayer la glissade du yen depuis des plus bas de 40 ans ; il s\u2019agissait de la premi\u00e8re action conjointe depuis 2011. La courbe des taux int\u00e8gre deux hausses de la BoJ d\u2019ici mars 2027, et les march\u00e9s attribuent d\u00e9sormais une probabilit\u00e9 d\u2019environ 40% \u00e0 une hausse en septembre, contre 20% une semaine plus t\u00f4t.  <\/p>\n<p>L\u2019app\u00e9tit pour le risque s\u2019est am\u00e9lior\u00e9 apr\u00e8s que Donald Trump a renonc\u00e9 \u00e0 une attaque pr\u00e9vue contre l\u2019Iran, qu\u2019il a qualifi\u00e9e de potentiellement la plus importante depuis la Seconde Guerre mondiale ; des discussions seraient pr\u00e9vues aujourd\u2019hui, tandis que le d\u00e9troit d\u2019Ormuz demeure en grande partie ferm\u00e9. Le Brent et le WTI ont perdu environ 8% \u00e0 l\u2019ouverture, l\u2019indice dollar a l\u00e9g\u00e8rement reflu\u00e9 et les rendements des bons du Tr\u00e9sor am\u00e9ricain ont baiss\u00e9, tandis que les contrats \u00e0 terme sur indices actions europ\u00e9ens et am\u00e9ricains progressaient, m\u00eame si les actions Asie-Pacifique reculaient sur fond de baisse des fabricants sud-cor\u00e9ens de semi-conducteurs. L\u2019attention se tourne vers les statistiques am\u00e9ricaines, avec l\u2019ISM manufacturier attendu aujourd\u2019hui \u00e0 14h GMT ; la pr\u00e9vision m\u00e9diane est de 54,0 contre 53,3 en juin, avec une fourchette d\u2019estimations de 57,0 \u00e0 52,8. Les nouvelles commandes et l\u2019emploi p\u00e8sent chacun 20% dans l\u2019indice, tandis que les cr\u00e9ations d\u2019emplois (non-farm payrolls) de juillet sont attendues autour de 83.000 contre 57.000 en juin, apr\u00e8s des publications de juin d\u2019inflation CPI, PPI et PCE en glissement annuel inf\u00e9rieures aux attentes.<\/p>\n<h3>Volatilit\u00e9 des changes et strat\u00e9gie de trading<\/h3>\n<p>Nous traversons une phase de forte volatilit\u00e9, alors que les traders sur d\u00e9riv\u00e9s s\u2019ajustent au silence de la R\u00e9serve f\u00e9d\u00e9rale et \u00e0 l\u2019intervention conjointe historique \u00c9tats-Unis\/Japon sur le yen. Le repli r\u00e9cent de 4% de l\u2019USD\/JPY, qui a fait passer la paire sous sa moyenne mobile \u00e0 200 jours, montre que le march\u00e9 prend ces mouvements de change tr\u00e8s au s\u00e9rieux. Historiquement, les interventions conjointes comme celle de 2011 ont r\u00e9ussi \u00e0 inverser des tendances de change de long terme, ce qui implique d\u2019\u00e9viter, cette fois, d\u2019acheter m\u00e9caniquement le repli sur l\u2019USD\/JPY.<\/p>\n<p>Plut\u00f4t que de traiter le spot avec un fort levier, on peut privil\u00e9gier des options d\u2019achat (calls) sur le JPY afin de se prot\u00e9ger contre d\u2019\u00e9ventuels pics li\u00e9s \u00e0 de nouvelles interventions. Le minist\u00e8re japonais des Finances a montr\u00e9 qu\u2019il \u00e9tait pr\u00eat \u00e0 engager des dizaines de milliards de dollars \u2014 \u00e0 l\u2019image des achats de yen estim\u00e9s \u00e0 35 Md$ \u00e0 la mi-2024 \u2014 pour d\u00e9fendre la devise. Le risque d\u2019une nouvelle action conjointe maintient une asym\u00e9trie orient\u00e9e \u00e0 la baisse pour l\u2019USD\/JPY, ce qui rend des calls JPY bon march\u00e9, hors-la-monnaie (out-of-the-money), attrayants comme strat\u00e9gie de volatilit\u00e9.<\/p>\n<h3>Taux d\u2019int\u00e9r\u00eat, donn\u00e9es macro et sentiment de risque<\/h3>\n<p>Sur le front des taux, l\u2019absence d\u2019indications prospectives de la part du pr\u00e9sident Warsh a accentu\u00e9 la pentification de la courbe am\u00e9ricaine, le march\u00e9 s\u2019interrogeant sur l\u2019engagement de la Fed en mati\u00e8re de stabilit\u00e9 des prix. Il est possible de se positionner sur la poursuite de cette pentification via des options sur Treasuries ou des strat\u00e9gies de spread de courbe. Deux publications majeures d\u2019inflation sont encore attendues avant la r\u00e9union de septembre, ce qui devrait maintenir une volatilit\u00e9 des taux \u00e9lev\u00e9e \u00e0 court terme.<\/p>\n<p>Avec un PMI ISM manufacturier attendu \u00e0 54,0 aujourd\u2019hui et des cr\u00e9ations d\u2019emplois vendredi anticip\u00e9es \u00e0 83.000, les statistiques am\u00e9ricaines dicteront la direction du dollar \u00e0 court terme. Une nette d\u00e9ception sur ces chiffres acc\u00e9l\u00e9rerait probablement la baisse du dollar et soutiendrait la reprise du yen. Pour les traders de d\u00e9riv\u00e9s, vendre le dollar sur rebond, \u00e0 la faveur de brefs pics positifs de donn\u00e9es, appara\u00eet comme le meilleur compromis risque\/rendement.<\/p>\n<p>La d\u00e9tente g\u00e9opolitique soudaine a entra\u00een\u00e9 une baisse de 8% des prix du p\u00e9trole, renfor\u00e7ant aujourd\u2019hui un sentiment \u00ab risk-on \u00bb sur les futures actions. Il convient d\u2019examiner la volatilit\u00e9 implicite sur les d\u00e9riv\u00e9s \u00e9nergie, qui reste \u00e9lev\u00e9e, afin de vendre de la prime via des spreads de cr\u00e9dit \u00e0 mesure que la panique imm\u00e9diate retombe. Toutefois, le d\u00e9troit d\u2019Ormuz demeurant largement ferm\u00e9, il faut conserver des tailles de position r\u00e9duites pour g\u00e9rer le risque de titres soudains sur l\u2019offre.<\/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>Choc sur le FX : apr\u00e8s statu quo des banques centrales, une intervention \u00c9tats-Unis\/Japon fait plonger l\u2019USD\/JPY de 4% sous sa SMA 200j. D\u00e9tente Iran : p\u00e9trole -8%, \u00ab risk-on \u00bb. Focus ISM\/NFP.<\/p>\n","protected":false},"author":87,"featured_media":49604,"comment_status":"","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[24],"tags":[],"class_list":["post-51892","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=\"Choc sur le FX : apr\u00e8s statu quo des banques centrales, une intervention \u00c9tats-Unis\/Japon fait plonger l\u2019USD\/JPY de 4% sous sa SMA 200j. D\u00e9tente Iran : p\u00e9trole -8%, \u00ab risk-on \u00bb. 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