{"id":11264,"date":"2026-09-18T11:00:21","date_gmt":"2026-09-18T09:00:21","guid":{"rendered":"https:\/\/www.api.parlonsfinance.fr\/?p=11264"},"modified":"2026-09-18T11:00:25","modified_gmt":"2026-09-18T09:00:25","slug":"inflation-persistante-aux-etats-unis-pourquoi-les-actions-resistent","status":"publish","type":"post","link":"https:\/\/www.api.parlonsfinance.fr\/index.php\/2026\/09\/18\/inflation-persistante-aux-etats-unis-pourquoi-les-actions-resistent\/","title":{"rendered":"Inflation persistante aux \u00c9tats-Unis : pourquoi les actions r\u00e9sistent"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">L\u2019inflation am\u00e9ricaine a de nouveau surpris \u00e0 la hausse en ao\u00fbt. Les prix \u00e0 la consommation hors \u00e9nergie et alimentation ont progress\u00e9 de 0,3 % sur un mois, contre 0,2 % attendu, tandis que l\u2019inflation totale a grimp\u00e9 de 0,4 %. <\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Ces chiffres montrent que l\u2019inflation reste plus persistante que pr\u00e9vu aux \u00c9tats-Unis et ravivent les interrogations sur la trajectoire des taux de la R\u00e9serve f\u00e9d\u00e9rale.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Sur le papier, cette statistique renforce l&rsquo;argument d&rsquo;une nouvelle hausse des taux directeurs de la R\u00e9serve f\u00e9d\u00e9rale cette semaine.  Pourtant, les march\u00e9s actions n&rsquo;ont pas paniqu\u00e9 : le S&amp;P 500 a termin\u00e9 la semaine en hausse de 0,9 %.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ce contraste entre une inflation qui d\u00e9\u00e7oit et une Bourse qui tient bon n&rsquo;a rien d&rsquo;illogique une fois qu&rsquo;on regarde d&rsquo;o\u00f9 vient r\u00e9ellement cette inflation, et pourquoi les march\u00e9s actions ont, historiquement, une tol\u00e9rance bien plus grande aux hausses de taux que ce que l&rsquo;on croit souvent.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Une inflation qui ralentit&#8230; lentement, pas qui repart<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Le d\u00e9tail des chiffres change beaucoup l&rsquo;interpr\u00e9tation. Une bonne partie de la hausse vient de cat\u00e9gories volatiles : les prix des billets d&rsquo;avion ont bondi de 2,7 % sur le mois, ceux des h\u00f4tels de 2,4 %. Les services de communication et d&rsquo;\u00e9ducation ont eux aussi augment\u00e9 fortement, tir\u00e9s par une hausse inhabituelle des forfaits de t\u00e9l\u00e9phonie mobile, un mouvement que beaucoup d&rsquo;\u00e9conomistes consid\u00e8rent comme ponctuel plut\u00f4t que structurel.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Les composantes plus stables et plus surveill\u00e9es, elles, restent au contraire relativement sages. Les loyers ont progress\u00e9 de 0,2 %, tout comme les loyers imput\u00e9s aux propri\u00e9taires, deux hausses inf\u00e9rieures aux tendances observ\u00e9es ces derniers mois. Sur un an, l&rsquo;inflation sous-jacente a m\u00eame l\u00e9g\u00e8rement recul\u00e9, passant de 2,5 % en juillet \u00e0 2,4 % en ao\u00fbt.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Autrement dit, le ralentissement de l&rsquo;inflation se poursuit, mais de fa\u00e7on in\u00e9gale et plus lente que ce que les march\u00e9s esp\u00e9raient, plut\u00f4t que de repartir de fa\u00e7on g\u00e9n\u00e9rale \u00e0 travers l&rsquo;\u00e9conomie. C&rsquo;est une nuance importante : ce n&rsquo;est pas la m\u00eame histoire qu&rsquo;un retour de l&rsquo;inflation, et les march\u00e9s le savent.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Une le\u00e7on que les march\u00e9s actions ont d\u00e9j\u00e0 apprise<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">L&rsquo;id\u00e9e qu&rsquo;une hausse de taux condamne automatiquement la Bourse est un raccourci que l&rsquo;histoire d\u00e9ment r\u00e9guli\u00e8rement. Lors du \u00ab taper tantrum \u00bb de 2013, l&rsquo;annonce d&rsquo;un simple ralentissement des achats d&rsquo;obligations par la R\u00e9serve f\u00e9d\u00e9rale avait fait bondir les taux longs am\u00e9ricains en quelques semaines. Les march\u00e9s actions, apr\u00e8s une correction rapide, avaient repris leur progression quelques mois plus tard, port\u00e9s par une \u00e9conomie qui continuait de cr\u00e9er des emplois.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Fin 2018, un sc\u00e9nario inverse s&rsquo;\u00e9tait produit : la Fed avait relev\u00e9 ses taux quatre fois dans l&rsquo;ann\u00e9e, provoquant une chute brutale des actions am\u00e9ricaines en d\u00e9cembre. Mais d\u00e8s qu&rsquo;elle avait suspendu ses hausses d\u00e9but 2019, la Bourse avait effac\u00e9 ses pertes en quelques mois \u00e0 peine.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ce que ces \u00e9pisodes montrent, c&rsquo;est que ce qui compte vraiment pour les actions n&rsquo;est pas le niveau des taux en lui-m\u00eame, mais la capacit\u00e9 de l&rsquo;\u00e9conomie et des entreprises \u00e0 continuer de g\u00e9n\u00e9rer des b\u00e9n\u00e9fices malgr\u00e9 des taux plus \u00e9lev\u00e9s. C&rsquo;est pr\u00e9cis\u00e9ment la question pos\u00e9e aujourd&rsquo;hui.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Une \u00e9conomie am\u00e9ricaine encore solide<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Les chiffres de l&#8217;emploi plaident pour une \u00e9conomie qui peut encaisser des taux plus \u00e9lev\u00e9s sans basculer. Les cr\u00e9ations d&#8217;emplois ont atteint 162 000 en ao\u00fbt, tr\u00e8s au-dessus des 55 000 attendus, tandis que le taux de ch\u00f4mage restait stable \u00e0 4,1 %. L&rsquo;activit\u00e9 manufacturi\u00e8re am\u00e9ricaine, de son c\u00f4t\u00e9, \u00e9tait en expansion pour un huiti\u00e8me mois cons\u00e9cutif.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Les propres mod\u00e8les de la R\u00e9serve f\u00e9d\u00e9rale sugg\u00e8rent qu&rsquo;un resserrement suppl\u00e9mentaire de 50 points de base ne r\u00e9duirait la croissance \u00e9conomique que de quelques dixi\u00e8mes de point. Autrement dit, deux hausses de taux suppl\u00e9mentaires semblent tout \u00e0 fait absorbables par une \u00e9conomie qui reste, pour l&rsquo;instant, robuste.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Le vrai moteur : les b\u00e9n\u00e9fices des entreprises<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">C&rsquo;est l\u00e0 que se trouve la cl\u00e9 de la r\u00e9sistance des march\u00e9s actions. Les pr\u00e9visions actuelles tablent sur une croissance des b\u00e9n\u00e9fices du S&amp;P 500 de 25 % en 2026 et de 14 % en 2027, tandis que les entreprises de la zone euro devraient cro\u00eetre de 15 % sur ces deux m\u00eames ann\u00e9es.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Fait notable : cette dynamique ne repose plus uniquement sur les plus grandes valeurs technologiques. La croissance m\u00e9diane des b\u00e9n\u00e9fices des entreprises du S&amp;P 500 atteint environ 14 %, port\u00e9e aussi par l&rsquo;industrie manufacturi\u00e8re, l&rsquo;activit\u00e9 sur les march\u00e9s de capitaux et une consommation des m\u00e9nages qui r\u00e9siste. Cet \u00e9largissement rend la hausse des b\u00e9n\u00e9fices plus solide, car elle ne d\u00e9pend plus d&rsquo;une poign\u00e9e de soci\u00e9t\u00e9s.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Des b\u00e9n\u00e9fices plus robustes r\u00e9duisent m\u00e9caniquement la valorisation des actions par rapport \u00e0 leurs profits, ce qui rend les march\u00e9s moins vuln\u00e9rables \u00e0 une correction provoqu\u00e9e uniquement par une remont\u00e9e des taux. Quant \u00e0 l&rsquo;intelligence artificielle, elle continue de jouer un r\u00f4le de soutien structurel, avec une demande toujours forte pour les capacit\u00e9s de cloud et les infrastructures d\u00e9di\u00e9es.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Ce que l&rsquo;investisseur peut en retenir<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">L&rsquo;inflation am\u00e9ricaine n&rsquo;est pas vaincue, mais elle ne s&#8217;emballe pas non plus. C&rsquo;est cette nuance, plus que le chiffre brut, qui explique pourquoi les march\u00e9s actions continuent d&rsquo;avancer malgr\u00e9 la perspective de nouvelles hausses de taux.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Pour un investisseur, la le\u00e7on rejoint celle de tous les grands \u00e9pisodes de resserrement mon\u00e9taire depuis trente ans : rester diversifi\u00e9, sans d\u00e9pendre excessivement d&rsquo;un petit nombre de valeurs, tout en gardant une exposition aux th\u00e8mes de fond, comme l&rsquo;intelligence artificielle, l&rsquo;\u00e9nergie et les ressources, ou les tendances d\u00e9mographiques de long terme, reste la meilleure fa\u00e7on de traverser ces phases sans s&rsquo;exposer inutilement \u00e0 un choc isol\u00e9.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>SOURCES<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong><a href=\"https:\/\/www.bls.gov\/news.release\/archives\/cpi_09112026.htm?utm_source=chatgpt.com\">\u2022\u00a0Bureau of Labor Statistics (BLS) \u2013 Consumer Price Index, ao\u00fbt 2026<\/a><\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong><a href=\"https:\/\/www.bls.gov\/news.release\/archives\/ppi_09102026.htm?utm_source=chatgpt.com\">\u2022\u00a0Bureau of Labor Statistics (BLS) \u2013 Producer Price Index, ao\u00fbt 2026<\/a><\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong><a href=\"https:\/\/www.bls.gov\/news.release\/empsit.htm?utm_source=chatgpt.com\">\u2022\u00a0Bureau of Labor Statistics (BLS) \u2013 Employment Situation, ao\u00fbt 2026<\/a><\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong><a href=\"https:\/\/www.cmegroup.com\/markets\/interest-rates\/cme-fedwatch-tool.html?utm_source=chatgpt.com\">\u2022\u00a0CME Group \u2013 CME FedWatch Tool<\/a><\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong><a href=\"https:\/\/www.federalreserve.gov\/monetarypolicy\/fomcprojtabl20260916.htm?utm_source=chatgpt.com\">\u2022\u00a0Federal Reserve \u2013 projections \u00e9conomiques et mod\u00e8les de politique mon\u00e9taire<\/a><\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong><a href=\"https:\/\/www.ismworld.org\/supply-management-news-and-reports\/reports\/ism-pmi-reports\/pmi\/august\/?utm_source=chatgpt.com\">\u2022\u00a0Institute for Supply Management (ISM) \u2013 indices d&rsquo;activit\u00e9 manufacturi\u00e8re<\/a><\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong><a href=\"https:\/\/www.factset.com\/?utm_source=chatgpt.com\">\u2022\u00a0Bloomberg, Factset \u2013 donn\u00e9es de march\u00e9<\/a><\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><br><br><\/p>\n","protected":false},"excerpt":{"rendered":"<p>L\u2019inflation am\u00e9ricaine a de nouveau surpris \u00e0 la hausse en ao\u00fbt. Les prix \u00e0 la consommation hors \u00e9nergie et alimentation ont progress\u00e9 de 0,3 % sur un mois, contre 0,2 % attendu, tandis que l\u2019inflation totale a grimp\u00e9 de 0,4 %. Ces chiffres montrent que l\u2019inflation reste plus persistante que pr\u00e9vu aux \u00c9tats-Unis et ravivent [&hellip;]<\/p>\n","protected":false},"author":91,"featured_media":11265,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[800,13,793],"tags":[10,7,6,5,23],"class_list":["post-11264","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-actualite","category-banque-finance","category-highlighted","tag-bourse","tag-business","tag-economie","tag-finance","tag-investissement"],"acf":[],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.3 - aioseo.com -->\n\t<meta name=\"description\" content=\"L&#039;inflation am\u00e9ricaine a de nouveau surpris \u00e0 la hausse en ao\u00fbt. 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