{"id":51606,"date":"2026-08-03T10:25:24","date_gmt":"2026-08-03T10:25:24","guid":{"rendered":"https:\/\/www.vtmarkets.com\/fr-latam\/uncategorized\/les-etats-unis-soutiennent-lintervention-du-japon-sur-le-yen-tandis-que-les-autorites-soulignent-la-marge-de-manoeuvre-limitee-pour-de-nouvelles-actions\/"},"modified":"2026-08-03T10:25:24","modified_gmt":"2026-08-03T10:25:24","slug":"les-etats-unis-soutiennent-lintervention-du-japon-sur-le-yen-tandis-que-les-autorites-soulignent-la-marge-de-manoeuvre-limitee-pour-de-nouvelles-actions","status":"publish","type":"post","link":"https:\/\/www.vtmarkets.com\/fr-latam\/live-updates\/les-etats-unis-soutiennent-lintervention-du-japon-sur-le-yen-tandis-que-les-autorites-soulignent-la-marge-de-manoeuvre-limitee-pour-de-nouvelles-actions\/","title":{"rendered":"Les \u00c9tats-Unis soutiennent l\u2019intervention du Japon sur le yen, tandis que les autorit\u00e9s soulignent la marge de man\u0153uvre limit\u00e9e pour de nouvelles actions"},"content":{"rendered":"<p>La confirmation officielle a indiqu\u00e9 que les \u00c9tats-Unis ont soutenu l\u2019intervention du Japon visant \u00e0 renforcer le yen, premi\u00e8re action coordonn\u00e9e de ce type depuis de nombreuses ann\u00e9es. Des responsables ont signal\u00e9 que d\u2019autres op\u00e9rations restaient possibles, m\u00eame si toute r\u00e9p\u00e9tition se heurterait \u00e0 des contraintes li\u00e9es aux r\u00e8gles du FMI, et la d\u00e9marche de jeudi a \u00e9t\u00e9 estim\u00e9e comme la plus importante intervention sur une seule journ\u00e9e jamais enregistr\u00e9e. Le rapport pr\u00e9cise \u00e9galement que si le Japon intervenait \u00e0 nouveau dans les prochains jours, le minist\u00e8re des Finances aurait, de fait, \u00e9puis\u00e9 ses options jusqu\u2019en novembre afin de conserver ce statut.<\/p>\n\n<p>Sur la valorisation, le yen a \u00e9t\u00e9 d\u00e9crit comme fortement sous-\u00e9valu\u00e9 sur la base de la parit\u00e9 de pouvoir d\u2019achat de l\u2019OCDE, et il est actuellement sous-\u00e9valu\u00e9 de plus de 60% face au dollar am\u00e9ricain. \u00c0 titre de comparaison, l\u2019euro est sous-\u00e9valu\u00e9 d\u2019environ 29%. La note cite les Treasuries am\u00e9ricains et les JGB comme \u00e9l\u00e9ments du m\u00e9canisme de transmission, \u00e9voquant la possibilit\u00e9 que le Japon vende des Treasuries ou utilise la facilit\u00e9 de repo de la Fed en apportant des Treasuries en collat\u00e9ral contre des liquidit\u00e9s, afin d\u2019obtenir des dollars pour intervenir.<\/p>\n\n<h3>Valorisation du yen et impact des interventions de march\u00e9<\/h3>\n\n<p>Nous devons reconna\u00eetre que le yen japonais demeure fondamentalement bon march\u00e9, s\u2019\u00e9changeant \u00e0 des niveaux historiquement sous-\u00e9valu\u00e9s de plus de 40% face au dollar am\u00e9ricain sur la base de la parit\u00e9 de pouvoir d\u2019achat. Malgr\u00e9 les fluctuations r\u00e9centes, la menace d\u2019une intervention conjointe sur le march\u00e9 des changes par les \u00c9tats-Unis et le Japon est en train de transformer la mani\u00e8re dont nous valorisons les options et les contrats \u00e0 terme sur devises. Les intervenants sur d\u00e9riv\u00e9s doivent se pr\u00e9parer \u00e0 des pics de volatilit\u00e9 soudains et d\u2019amplitude \u00e9lev\u00e9e, plut\u00f4t que de parier sur une tendance r\u00e9guli\u00e8re et pr\u00e9visible.<\/p>\n\n<h3>Strat\u00e9gie de trading dans un environnement JPY volatil<\/h3>\n\n<p>Nous recommandons aux traders d\u2019envisager l\u2019achat d\u2019options d\u2019achat JPY hors de la monnaie et de maturit\u00e9 courte afin de se couvrir contre des rallyes abrupts pilot\u00e9s par les autorit\u00e9s. \u00c9tant donn\u00e9 que la Banque du Japon a conserv\u00e9 une posture plus restrictive apr\u00e8s avoir relev\u00e9 ses taux \u00e0 0,25%, le carry trade n\u2019est plus un pari \u00e0 sens unique suppos\u00e9 \u00ab sans risque \u00bb. Le recours \u00e0 des strat\u00e9gies de volatilit\u00e9 telles que les straddles peut nous aider \u00e0 capter ces mouvements brusques sans avoir \u00e0 deviner le moment exact de la prochaine intervention.<\/p>\n\n<p>Nous devons \u00e9galement suivre de pr\u00e8s le march\u00e9 des Treasuries am\u00e9ricains, car un recours potentiel du Japon \u00e0 la facilit\u00e9 de repo de la R\u00e9serve f\u00e9d\u00e9rale limite la pression vendeuse directe sur les obligations am\u00e9ricaines. L\u2019observation des donn\u00e9es du \u00ab foreign repo pool \u00bb de la Fed, qui a souvent fluctu\u00e9 autour de 350 milliards de dollars, nous donnera des indications pr\u00e9coces sur les \u00e9volutions de liquidit\u00e9. Si ces encours baissent rapidement, cela sugg\u00e8re que le minist\u00e8re des Finances se pr\u00e9pare activement \u00e0 \u00e9changer du collat\u00e9ral contre des liquidit\u00e9s afin de soutenir le yen.<\/p>\n\n<p>Avec des contraintes de politique \u00e9conomique limitant la fr\u00e9quence \u00e0 laquelle le Japon peut intervenir sur le march\u00e9 avant la fin de l\u2019ann\u00e9e, la fen\u00eatre de ces interventions est tr\u00e8s restreinte. Nous conseillons de r\u00e9duire l\u2019effet de levier sur les positions short JPY non couvertes au cours des prochaines semaines afin d\u2019\u00e9viter de se retrouver pi\u00e9g\u00e9 par des chocs soudains de liquidit\u00e9. Prot\u00e9ger le capital via des options structur\u00e9es plut\u00f4t que par du trading au comptant sera notre approche la plus prudente dans cet environnement \u00e0 forts enjeux.<\/p>\n\n\n\r\n<p class=\"wp-block-paragraph\"><b>Commencez \u00e0 trader d\u00e8s maintenant \u2014 cliquez <a href=\"https:\/\/www.vtmarkets.com\/fr-latam\/trade-now\/\">ici<\/a> pour cr\u00e9er votre compte r\u00e9el VT Markets.<\/b>\n\r\n<\/p>","protected":false},"excerpt":{"rendered":"<p>Coup de tonnerre sur le FX : Washington a appuy\u00e9 l\u2019intervention record du Japon pour soutenir un yen jug\u00e9 tr\u00e8s sous-\u00e9valu\u00e9. Volatilit\u00e9 accrue, options JPY privil\u00e9gi\u00e9es, repo Fed surveill\u00e9, marges d\u2019action limit\u00e9es.<\/p>\n","protected":false},"author":87,"featured_media":49313,"comment_status":"","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[10],"tags":[],"class_list":["post-51606","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 4.9.10 - aioseo.com -->\n\t<meta name=\"description\" content=\"Coup de tonnerre sur le FX : Washington a appuy\u00e9 l\u2019intervention record du Japon pour soutenir un yen jug\u00e9 tr\u00e8s sous-\u00e9valu\u00e9. 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