{"id":68581,"date":"2026-09-18T07:59:55","date_gmt":"2026-09-18T07:59:55","guid":{"rendered":"https:\/\/www.vtmarkets.com\/fr-latam\/uncategorized\/gbp-usd-forecast-sterling-tests-key-support-after-september-sell-off\/"},"modified":"2026-09-18T07:59:55","modified_gmt":"2026-09-18T07:59:55","slug":"gbp-usd-forecast-sterling-tests-key-support-after-september-sell-off","status":"publish","type":"post","link":"https:\/\/www.vtmarkets.com\/fr-latam\/analysis\/gbp-usd-forecast-sterling-tests-key-support-after-september-sell-off\/","title":{"rendered":"Pr\u00e9visions GBP\/USD : la livre sterling teste un support cl\u00e9 apr\u00e8s la correction de septembre"},"content":{"rendered":"\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/www.vtmarkets.com\/wp-content\/uploads\/2026\/09\/Copy-of-discover-20-1024x559.webp\" alt=\"\" class=\"wp-image-68665\"\/><\/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 GBP\/USD a recul\u00e9 d\u2019environ <strong>2,5 % par rapport \u00e0 son sommet d\u2019ao\u00fbt<\/strong>, apr\u00e8s \u00eatre pass\u00e9 sous la zone de prix du d\u00e9but septembre (la <strong>plage d\u2019ouverture<\/strong>, c\u2019est-\u00e0-dire la zone o\u00f9 le march\u00e9 s\u2019est install\u00e9 au d\u00e9but du mois).<\/li>\n\n\n\n<li>La livre sterling s\u2019approche d\u2019une zone de <strong>support<\/strong> importante (un niveau o\u00f9 les acheteurs ont souvent tendance \u00e0 revenir), apr\u00e8s avoir \u00e9chou\u00e9 \u00e0 se maintenir au-dessus de <strong>r\u00e9sistances<\/strong> r\u00e9centes (des niveaux qui freinent les hausses).<\/li>\n\n\n\n<li>La paire reste sous sa <strong>moyenne mobile<\/strong> de court terme (un indicateur qui lisse les prix pour lire la tendance), signe d\u2019une pression vendeuse persistante.<\/li>\n\n\n\n<li>Les prochains chiffres de <strong>PMI<\/strong> au Royaume-Uni et aux \u00c9tats-Unis pourraient orienter la prochaine phase, alors que les op\u00e9rateurs r\u00e9\u00e9valuent la dynamique \u00e9conomique. (Le <strong>PMI<\/strong>, indice des directeurs d\u2019achat, mesure l\u2019activit\u00e9 des entreprises : au-dessus de 50, l\u2019activit\u00e9 progresse ; en dessous, elle recule.)<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Mouvement de march\u00e9<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>GBP\/USD<\/strong> \u00e9volue autour de <strong>1,3358<\/strong>, apr\u00e8s un l\u00e9ger rebond \u00e0 la suite des baisses r\u00e9centes.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">La paire peine \u00e0 repasser durablement au-dessus de la zone <strong>1,3360\u20131,3365<\/strong>, o\u00f9 les rebonds pr\u00e9c\u00e9dents ont but\u00e9 sur une r\u00e9sistance.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Un retour au-dessus des r\u00e9sistances cl\u00e9s serait n\u00e9cessaire pour am\u00e9liorer la lecture \u00e0 court terme.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Pourquoi les traders surveillent<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Les r\u00e9unions de politique mon\u00e9taire de la R\u00e9serve f\u00e9d\u00e9rale et de la Banque d\u2019Angleterre \u00e9tant pass\u00e9es, l\u2019attention se porte sur les indicateurs \u00e0 venir, afin d\u2019\u00e9valuer la croissance et la direction probable du march\u00e9. (La <strong>politique mon\u00e9taire<\/strong> correspond aux d\u00e9cisions de taux et de conditions de cr\u00e9dit prises par une banque centrale.)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Les prochaines publications des <strong>PMI flash<\/strong> au Royaume-Uni et aux \u00c9tats-Unis donneront une indication rapide de l\u2019activit\u00e9 des entreprises, ce qui peut modifier les anticipations sur les prochaines d\u00e9cisions de politique mon\u00e9taire. (Un <strong>PMI flash<\/strong> est une estimation pr\u00e9liminaire, publi\u00e9e avant les donn\u00e9es finales.)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Des donn\u00e9es britanniques solides peuvent soutenir la livre, tandis qu\u2019un regain de vigueur des indicateurs am\u00e9ricains tend \u00e0 favoriser le 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\/GBPUSD\/?exchange=OANDA\" rel=\"noopener nofollow\" target=\"_blank\"><span class=\"blue-text\">GBPUSD 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\": \"OANDA:GBPUSD\",  \"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><tbody><tr><td class=\"has-text-align-center\" data-align=\"center\"><strong>Niveau<\/strong><\/td><td class=\"has-text-align-center\" data-align=\"center\"><strong>Zone de prix<\/strong><\/td><td class=\"has-text-align-center\" data-align=\"center\"><strong>Importance<\/strong><\/td><\/tr><tr><td>R\u00e9sistance 1<\/td><td>1,3365<\/td><td>R\u00e9sistance imm\u00e9diate en s\u00e9ance (\u00e0 court terme)<\/td><\/tr><tr><td>R\u00e9sistance 2<\/td><td>1,341<\/td><td>Niveau cl\u00e9 pour relancer un rebond<\/td><\/tr><tr><td>R\u00e9sistance 3<\/td><td>1,3474<\/td><td>Zone de r\u00e9sistance majeure<\/td><\/tr><tr><td>Support 1<\/td><td>1,3345<\/td><td>Zone de support actuelle<\/td><\/tr><tr><td>Support 2<\/td><td>1,3255<\/td><td>Prochain objectif baisse<\/td><\/tr><tr><td>Support 3<\/td><td>1,3194<\/td><td>Support cl\u00e9 bas\u00e9 sur Fibonacci (outil de rep\u00e9rage de niveaux possibles de retournement)<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Le GBP\/USD teste la <strong>zone de support 1,3345<\/strong>, niveau charni\u00e8re pour la suite. Si ce support tient, les acheteurs pourraient viser <strong>1,3410<\/strong> puis <strong>1,3474<\/strong>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">En revanche, une cassure sous le support renforcerait le sc\u00e9nario de vente et ouvrirait la voie \u00e0 <strong>1,3255<\/strong> puis <strong>1,3194<\/strong>.<\/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\"><img decoding=\"async\" src=\"https:\/\/www.vtmarkets.com\/wp-content\/uploads\/2026\/09\/codeYTUzZDJhODk5MmQyNmY2YTIyNDY0NjEwYjliYzQ1YzRfUlMyb09PMWk2dDllbVZqcjcwcHBTaUFIMEVxR1BtMWNfVG9rZW46TmpJbWJuTm1rb1lOS094MVBCWWxKMzZFZ1FlXzE3ODk3MDM1NjM6MTc4OTcwNzE2M19WNAampadd_watermarktrueampscene_typeCCM.png\" alt=\"\"\/><\/figure>\n\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td class=\"has-text-align-center\" data-align=\"center\"><strong>Sc\u00e9nario<\/strong><\/td><td class=\"has-text-align-center\" data-align=\"center\"><strong>Condition<\/strong><\/td><td class=\"has-text-align-center\" data-align=\"center\"><strong>Niveaux cl\u00e9s<\/strong><\/td><td class=\"has-text-align-center\" data-align=\"center\"><strong>Mouvement potentiel<\/strong><\/td><\/tr><tr><td>Sc\u00e9nario haussier<\/td><td>Les acheteurs d\u00e9fendent le support et repassent au-dessus des r\u00e9sistances<\/td><td>Tenir au-dessus de 1,3345 ; franchir 1,3365<\/td><td>Rebond vers 1,3410, puis 1,3474 si l\u2019\u00e9lan s\u2019am\u00e9liore<\/td><\/tr><tr><td>Sc\u00e9nario baissier<\/td><td>Les vendeurs reprennent la main apr\u00e8s rupture du support<\/td><td>Passage sous 1,3345<\/td><td>Poursuite de la baisse vers 1,3255, puis 1,3194 comme prochain support majeur<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Dans un sc\u00e9nario haussier, le GBP\/USD pourrait se redresser si le support <strong>1,3345<\/strong> tient et si le cours repasse au-dessus de <strong>1,3365<\/strong>. Les indicateurs de dynamique (mesures de la force du mouvement) devraient confirmer un retour des achats pour prolonger le rebond.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Dans un sc\u00e9nario baissier, une rupture sous <strong>1,3345<\/strong> indiquerait que les vendeurs gardent la main, avec un risque accru de glissement vers <strong>1,3255<\/strong>. Un passage sous ce niveau prolongerait la phase de correction entam\u00e9e en septembre.<\/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 ci-dessus 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. Chaque trader doit faire sa propre analyse et g\u00e9rer son risque.<\/em><\/p>\n\n\n\n<h1 class=\"wp-block-heading\">Pr\u00e9vision GBP\/USD : quelle suite ?<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">Le GBP\/USD se trouve \u00e0 un point cl\u00e9 apr\u00e8s son repli. La prochaine direction d\u00e9pendra surtout de la capacit\u00e9 des acheteurs \u00e0 d\u00e9fendre les supports actuels.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Les chiffres des <strong>PMI flash<\/strong> de l\u2019industrie et des services sont attendus au Royaume-Uni et aux \u00c9tats-Unis le 23. Ils donneront des indications sur l\u2019\u00e9tat de l\u2019\u00e9conomie et peuvent peser sur la livre comme sur le dollar.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Un PMI britannique faible sugg\u00e8re un ralentissement de l\u2019activit\u00e9, ce qui peut faire baisser la livre face au dollar. \u00c0 l\u2019inverse, un PMI solide indique une activit\u00e9 plus robuste et peut soutenir la livre.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Trader le GBP\/USD avec VT Markets<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Tradez le GBP\/USD avec des spreads comp\u00e9titifs (l\u2019\u00e9cart entre prix d\u2019achat et prix de vente), des options de levier flexibles (le <strong>levier<\/strong> permet d\u2019augmenter l\u2019exposition avec une mise plus faible) et des plateformes con\u00e7ues pour le march\u00e9 des changes.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Acc\u00e9dez au GBP\/USD via MetaTrader 4, MetaTrader 5 et l\u2019application VT Markets.<\/p>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary><strong>FAQ<\/strong><\/summary>\n<h3 class=\"wp-block-heading\">Pourquoi le GBP\/USD baisse-t-il ?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Le GBP\/USD a recul\u00e9 apr\u00e8s avoir \u00e9chou\u00e9 \u00e0 franchir des r\u00e9sistances, les vendeurs prenant l\u2019avantage en septembre. La paire teste d\u00e9sormais des zones de support importantes.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Quels niveaux surveiller sur le GBP\/USD ?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u00c0 la hausse, les niveaux cl\u00e9s sont <strong>1,3410<\/strong> et <strong>1,3474<\/strong>. \u00c0 la baisse, <strong>1,3345<\/strong>, <strong>1,3255<\/strong> et <strong>1,3194<\/strong> restent des rep\u00e8res importants.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Qu\u2019est-ce qui peut faire bouger le GBP\/USD ensuite ?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Les PMI au Royaume-Uni et aux \u00c9tats-Unis peuvent modifier les anticipations de croissance et, par cons\u00e9quent, la force relative de la livre et du dollar.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Le GBP\/USD est-il haussier ou baissier ?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u00c0 court terme, la pression reste baissi\u00e8re tant que la paire \u00e9volue sous les r\u00e9sistances r\u00e9centes. Un retour au-dessus de r\u00e9sistances cl\u00e9s serait n\u00e9cessaire pour am\u00e9liorer la tendance imm\u00e9diate.<\/p>\n<\/details>\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-latam\/trade-now\/\">ici<\/a> pour cr\u00e9er votre compte r\u00e9el VT Markets.<\/b>\n\n<\/p>","protected":false},"excerpt":{"rendered":"<p>Accrochez-vous : le GBP\/USD d\u00e9croche de 2,5% depuis ao\u00fbt et teste le support 1,3345, sous sa moyenne mobile. Les PMI flash UK\/US trancheront : rebond vers 1,3474 ou glissade 1,3255-1,3194.<\/p>\n","protected":false},"author":87,"featured_media":68580,"comment_status":"","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[14],"tags":[],"class_list":["post-68581","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=\"Accrochez-vous : le GBP\/USD d\u00e9croche de 2,5% depuis ao\u00fbt et teste le support 1,3345, sous sa moyenne mobile. 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