{"id":28544,"date":"2026-03-06T15:05:15","date_gmt":"2026-03-06T20:05:15","guid":{"rendered":"https:\/\/www.rbcwealthmanagement.com\/fr-ca\/?p=28544"},"modified":"2026-03-06T15:05:16","modified_gmt":"2026-03-06T20:05:16","slug":"then-and-now-market-reactions-to-military-conflicts-and-what-they-mean-today","status":"publish","type":"post","link":"https:\/\/www.rbcwealthmanagement.com\/fr-ca\/insights\/then-and-now-market-reactions-to-military-conflicts-and-what-they-mean-today","title":{"rendered":"Le pass\u00e9 et le pr\u00e9sent\u00a0: r\u00e9actions des march\u00e9s aux conflits militaires et ce que cela signifie aujourd\u2019hui"},"content":{"rendered":"\n<p>\n      Lors de 20 interventions et hostilit\u00e9s militaires majeures men\u00e9es apr\u00e8s la\n      Seconde Guerre mondiale que nous avons \u00e9valu\u00e9es, l\u2019indice S&amp;P 500 a\n      recul\u00e9 de 6 % en moyenne, du moment o\u00f9 le march\u00e9 a \u00e9t\u00e9 initialement touch\u00e9\n      au creux. Dans 19 de ces 20 cas, le march\u00e9 n\u2019a pris en moyenne que\n      28 jours pour revenir au niveau d\u2019avant ces \u00e9v\u00e9nements.\n    <\/p>\n    <p>\n      Ces remont\u00e9es se sont produites malgr\u00e9 des interventions qui ont dur\u00e9 plus\n      longtemps, parfois beaucoup plus longtemps (des ann\u00e9es, voire des\n      d\u00e9cennies). Autrement dit, la dur\u00e9e d\u2019un conflit particulier n\u2019a jamais eu\n      une grande incidence sur le rendement du march\u00e9.\n    <\/p>\n    <p>\n      Ce ne sont que des statistiques ponctuelles moyennes qui ne disent pas\n      tout. Comme pour de nombreuses \u00e9tudes comportant de petits \u00e9chantillons,\n      il y a des \u00e9carts importants.\n    <\/p>\n    <!-- SECTION -->\n    <h2>Le march\u00e9 boursier \u00e9volue-t-il au m\u00eame rythme que le p\u00e9trole?<\/h2>\n    <p>\n      Souvent, le rendement des march\u00e9s apr\u00e8s de tels \u00e9v\u00e9nements pr\u00e9sentait des\n      contours uniques, surtout lorsque l\u2019offre d\u2019\u00e9nergie \u00e9tait perturb\u00e9e ou\n      aurait pu l\u2019\u00eatre, un enjeu pertinent pour la crise actuelle au\n      Moyen-Orient, qui s\u2019est propag\u00e9e bien au-del\u00e0 de l\u2019Iran et d\u2019Isra\u00ebl aux\n      \u00c9tats arabes du Golfe, riches en p\u00e9trole et en gaz naturel.\n    <\/p>\n    <p>\n      Deux \u00e9v\u00e9nements qui ont entra\u00een\u00e9 un choc p\u00e9trolier ont entra\u00een\u00e9 des pertes\n      de plus de 10 % sur le march\u00e9 boursier : la guerre de Yom Kippour et\n      l\u2019embargo p\u00e9trolier arabe en 1973, et l\u2019invasion du Kowe\u00eft et la saisie de\n      ses champs de p\u00e9trole par l\u2019Irak en 1990. L\u2019indice S&amp;P 500 a l\u00e2ch\u00e9\n      16,1 % et 15,9 %, respectivement, durant ces \u00e9v\u00e9nements.\n    <\/p>\n    <p>\n      Le march\u00e9 boursier a recul\u00e9 de \u00ab seulement \u00bb 7,4 % au cours du troisi\u00e8me\n      choc p\u00e9trolier li\u00e9 \u00e0 une op\u00e9ration militaire \u2013 soit le d\u00e9but de\n      l\u2019intervention de la Russie en Ukraine.\n    <\/p>\n    <p>Nuances associ\u00e9es \u00e0 deux de ces \u00e9v\u00e9nements :<\/p>\n    <ul class=\"list-spaced\">\n      <li>\n        L\u2019embargo p\u00e9trolier impos\u00e9 aux pays arabes en octobre 1973, qui a dur\u00e9\n        cinq mois et qui s\u2019est produit \u00e0 un moment o\u00f9 l\u2019\u00e9conomie am\u00e9ricaine\n        d\u00e9pendait beaucoup plus des importations de p\u00e9trole qu\u2019aujourd\u2019hui, a\n        d\u00e9clench\u00e9 une longue r\u00e9cession, puis une p\u00e9riode de malaise et une\n        flamb\u00e9e de l\u2019inflation qui n\u2019a \u00e9t\u00e9 enti\u00e8rement stopp\u00e9e que plusieurs\n        ann\u00e9es plus tard. La R\u00e9serve f\u00e9d\u00e9rale am\u00e9ricaine a aussi commis des\n        erreurs de politique fiscale et mon\u00e9taire au cours de cette p\u00e9riode.\n        L\u2019indice S&amp;P 500 a \u00e9volu\u00e9 en dents de scie, mais il a fallu six\n        longues et douloureuses ann\u00e9es apr\u00e8s le d\u00e9but de l\u2019embargo sur le\n        p\u00e9trole arabe pour que le march\u00e9 revienne \u00e0 son niveau ant\u00e9rieur \u00e0\n        l\u2019embargo en 1979, et il n\u2019a pas consid\u00e9rablement augment\u00e9 avant les\n        ann\u00e9es 1980. De nombreux investisseurs ont abandonn\u00e9 et liquid\u00e9\n        compl\u00e8tement leurs placements en actions dans les ann\u00e9es 1970, ce qui\n        leur a fait manquer les gains substantiels r\u00e9alis\u00e9s par le march\u00e9 \u00e0\n        compter des ann\u00e9es 1980.\n      <\/li>\n      <li>\n        Au d\u00e9but de l\u2019op\u00e9ration militaire russe en Ukraine, le prix du p\u00e9trole\n        brut WTI a d\u00e9pass\u00e9 90 $ le baril pendant six mois cons\u00e9cutifs en 2022,\n        atteignant un sommet de pr\u00e8s de 124 $ le baril. Nous pensons que le\n        d\u00e9lestage sur le march\u00e9 boursier am\u00e9ricain a \u00e9t\u00e9 moins marqu\u00e9 pendant\n        cet \u00e9pisode que lors des deux autres p\u00e9riodes de choc p\u00e9trolier, car il\n        est devenu \u00e9vident que l\u2019offre de p\u00e9trole brut de la Russie ne serait\n        pas entrav\u00e9e de fa\u00e7on importante. De plus, les risques li\u00e9s \u00e0 l\u2019\u00e9conomie\n        et aux b\u00e9n\u00e9fices des soci\u00e9t\u00e9s \u00e9taient grandement moindres en Am\u00e9rique du\n        Nord qu\u2019en Europe, selon nous.\n      <\/li>\n    <\/ul>\n    <!-- EXHIBIT 1-->\n    <h3>\n      R\u00e9ponses de l\u2019indice S&amp;P 500 \u00e0 certaines interventions et hostilit\u00e9s\n      militaires depuis la Seconde Guerre mondiale\n    <\/h3>\n\n    <div class=\"table-responsive mb-1-half\">\n      <table\n        class=\"table table-compact table-striped table-borderless table-primary\"\n      >\n        <thead>\n          <tr>\n            <th scope=\"col\" width=\"40%\">\u00c9v\u00e9nements<\/th>\n            <th scope=\"col\" style=\"text-align: center\">Date de d\u00e9but*<\/th>\n            <th scope=\"col\" style=\"text-align: center\">\n              N<sup>bre<\/sup> de jours de bourse jusqu\u2019au creux\n            <\/th>\n            <th scope=\"col\" style=\"text-align: center\">\n              Variation en&nbsp;% jusqu\u2019au creux\n            <\/th>\n            <th scope=\"col\" style=\"text-align: center\">\n              N<sup>bre<\/sup> de jours de bourse pour regagner le terrain perdu\n            <\/th>\n          <\/tr>\n        <\/thead>\n        <tbody>\n          <tr>\n            <td>Invasion de la Cor\u00e9e du Sud par la Cor\u00e9e du Nord<\/td>\n            <td style=\"text-align: center\">25&nbsp;juin&nbsp;1950<\/td>\n            <td style=\"text-align: center\">15<\/td>\n            <td style=\"text-align: center\">-12,9&nbsp;%<\/td>\n            <td style=\"text-align: center\">56<\/td>\n          <\/tr>\n          <tr>\n            <td>Avion-espion am\u00e9ricain abattu en URSS<\/td>\n            <td style=\"text-align: center\">7 mai 1960<\/td>\n            <td style=\"text-align: center\">2<\/td>\n            <td style=\"text-align: center\">-0,6&nbsp;%<\/td>\n            <td style=\"text-align: center\">4<\/td>\n          <\/tr>\n          <tr>\n            <td>D\u00e9barquement de la Baie des cochons<\/td>\n            <td style=\"text-align: center\">15 avril 1961<\/td>\n            <td style=\"text-align: center\">6<\/td>\n            <td style=\"text-align: center\">-3.0%<\/td>\n            <td style=\"text-align: center\">14<\/td>\n          <\/tr>\n          <tr>\n            <td>Crise des missiles \u00e0 Cuba<\/td>\n            <td style=\"text-align: center\">16 oct. 1962<\/td>\n            <td style=\"text-align: center\">6<\/td>\n            <td style=\"text-align: center\">-6,3&nbsp;%<\/td>\n            <td style=\"text-align: center\">13<\/td>\n          <\/tr>\n          <tr>\n            <td>Incident du golfe du Tonkin (Vietnam)<\/td>\n            <td style=\"text-align: center\">2 ao\u00fbt 1964<\/td>\n            <td style=\"text-align: center\">4<\/td>\n            <td style=\"text-align: center\">-2,2&nbsp;%<\/td>\n            <td style=\"text-align: center\">29<\/td>\n          <\/tr>\n          <tr>\n            <td>P\u00e9riode pr\u00e9c\u00e9dant la guerre des Six Jours (6 juin)<\/td>\n            <td style=\"text-align: center\">14 mai 1967<\/td>\n            <td style=\"text-align: center\">15<\/td>\n            <td style=\"text-align: center\">-5.6%<\/td>\n            <td style=\"text-align: center\">20<\/td>\n          <\/tr>\n          <tr>\n            <td>Offensive du Tet (Vietnam)<\/td>\n            <td style=\"text-align: center\">29&nbsp;janv.&nbsp;1968<\/td>\n            <td style=\"text-align: center\">25<\/td>\n            <td style=\"text-align: center\">-6,0&nbsp;%<\/td>\n            <td style=\"text-align: center\">46<\/td>\n          <\/tr>\n          <tr>\n            <td>Campagne cambodgienne (Vietnam)<\/td>\n            <td style=\"text-align: center\">1<sup>er<\/sup> mai 1970<\/td>\n            <td style=\"text-align: center\">18<\/td>\n            <td style=\"text-align: center\">-14,9&nbsp;%<\/td>\n            <td style=\"text-align: center\">86<\/td>\n          <\/tr>\n          <tr>\n            <td>Guerre du Kippour, embargo p\u00e9trolier arabe<\/td>\n            <td style=\"text-align: center\">6 oct. 1973<\/td>\n            <td style=\"text-align: center\">42<\/td>\n            <td style=\"text-align: center; border: 2px solid red\">\n              -16,1&nbsp;%\n            <\/td>\n            <td style=\"text-align: center\">6 ans**<\/td>\n          <\/tr>\n          <tr>\n            <td>Guerre sovi\u00e9to-afghane<\/td>\n            <td style=\"text-align: center\">24 d\u00e9c. 1979<\/td>\n            <td style=\"text-align: center\">7<\/td>\n            <td style=\"text-align: center\">-2,3&nbsp;%<\/td>\n            <td style=\"text-align: center\">10<\/td>\n          <\/tr>\n          <tr>\n            <td>Intervention \u00e0 Grenade<\/td>\n            <td style=\"text-align: center\">25 oct. 1983<\/td>\n            <td style=\"text-align: center\">11<\/td>\n            <td style=\"text-align: center\">-2,8&nbsp;%<\/td>\n            <td style=\"text-align: center\">15<\/td>\n          <\/tr>\n          <tr>\n            <td>Jours pr\u00e9c\u00e9dant l\u2019intervention au Panama<\/td>\n            <td style=\"text-align: center\">15 d\u00e9c. 1989<\/td>\n            <td style=\"text-align: center\">2<\/td>\n            <td style=\"text-align: center\">-2,2&nbsp;%<\/td>\n            <td style=\"text-align: center\">8<\/td>\n          <\/tr>\n          <tr>\n            <td>\n              Invasion du Kowe\u00eft par l\u2019Irak, occupation de champs p\u00e9troliers\n            <\/td>\n            <td style=\"text-align: center\">2 ao\u00fbt 1990<\/td>\n            <td style=\"text-align: center\">50<\/td>\n            <td style=\"text-align: center; border: 2px solid red\">\n              -15,9&nbsp;%\n            <\/td>\n            <td style=\"text-align: center\">131<\/td>\n          <\/tr>\n          <tr>\n            <td>P\u00e9riode pr\u00e9c\u00e9dant la guerre du Golfe (Temp\u00eate du d\u00e9sert)<\/td>\n            <td style=\"text-align: center\">\n              1<sup>er<\/sup>&nbsp;janv.&nbsp;1991\n            <\/td>\n            <td style=\"text-align: center\">6<\/td>\n            <td style=\"text-align: center\">-5,7&nbsp;%<\/td>\n            <td style=\"text-align: center\">13<\/td>\n          <\/tr>\n          <tr>\n            <td>Intervention en Yougoslavie (Balkans)<\/td>\n            <td style=\"text-align: center\">24 mars 1999<\/td>\n            <td style=\"text-align: center\">3<\/td>\n            <td style=\"text-align: center\">-4,1&nbsp;%<\/td>\n            <td style=\"text-align: center\">11<\/td>\n          <\/tr>\n          <tr>\n            <td>Capture d\u2019un avion-espion am\u00e9ricain en Chine<\/td>\n            <td style=\"text-align: center\">\n              1<sup>er<\/sup>&nbsp;avril&nbsp;2001\n            <\/td>\n            <td style=\"text-align: center\">3<\/td>\n            <td style=\"text-align: center\">-4,9&nbsp;%<\/td>\n            <td style=\"text-align: center\">7<\/td>\n          <\/tr>\n          <tr>\n            <td>Guerre en Afghanistan<\/td>\n            <td style=\"text-align: center\">7 oct. 2001<\/td>\n            <td style=\"text-align: center\">1<\/td>\n            <td style=\"text-align: center\">-0,8&nbsp;%<\/td>\n            <td style=\"text-align: center\">3<\/td>\n          <\/tr>\n          <tr>\n            <td>P\u00e9riode pr\u00e9c\u00e9dant la guerre en Irak<\/td>\n            <td style=\"text-align: center\">5 f\u00e9vr. 2003<\/td>\n            <td style=\"text-align: center\">24<\/td>\n            <td style=\"text-align: center\">-5,6&nbsp;%<\/td>\n            <td style=\"text-align: center\">28<\/td>\n          <\/tr>\n          <tr>\n            <td>Intervention de la Russie en Ukraine<\/td>\n            <td style=\"text-align: center\">11 f\u00e9vr. 2022*<\/td>\n            <td style=\"text-align: center\">17<\/td>\n            <td style=\"text-align: center; border: 2px solid red\">\n              -7,4&nbsp;%\n            <\/td>\n            <td style=\"text-align: center\">27<\/td>\n          <\/tr>\n          <tr>\n            <td>Guerre de 12 jours (Isra\u00ebl\/\u00c9.-U. et Iran)<\/td>\n            <td style=\"text-align: center\">12 juin 2025<\/td>\n            <td style=\"text-align: center\">5<\/td>\n            <td style=\"text-align: center\">-1,3&nbsp;%<\/td>\n            <td style=\"text-align: center\">7<\/td>\n          <\/tr>\n          <tr>\n            <td class=\"b-blue-tint-3\" style=\"font-weight: 700\">\n              Moyenne des 20 \u00e9v\u00e9nements\n            <\/td>\n            <td\n              class=\"b-blue-tint-3\"\n              style=\"text-align: center; font-weight: 700\"\n            >\n              &mdash;\n            <\/td>\n            <td\n              class=\"b-blue-tint-3\"\n              style=\"text-align: center; font-weight: 700\"\n            >\n              13\n            <\/td>\n            <td\n              class=\"b-blue-tint-3\"\n              style=\"text-align: center; font-weight: 700\"\n            >\n              -6,0&nbsp;%\n            <\/td>\n            <td\n              class=\"b-blue-tint-3\"\n              style=\"text-align: center; font-weight: 700\"\n            >\n              28\n            <\/td>\n          <\/tr>\n        <\/tbody>\n      <\/table>\n    <\/div>\n\n    <p class=\"footnote\" style=\"margin-bottom: 5px\">\n      <span style=\"display: inline; border: 2px solid red\"\n        >&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<\/span\n      >&ensp;Les donn\u00e9es encercl\u00e9es en rouge indiquent les \u00e9v\u00e9nements touch\u00e9s\n      par les flamb\u00e9es des prix du p\u00e9trole brut.\n    <\/p>\n    <p class=\"footnote\" style=\"margin-bottom: 5px\">\n      * Les dates tentent de saisir toute incidence importante ayant pr\u00e9c\u00e9d\u00e9\n      l\u2019\u00e9v\u00e9nement; les dates de d\u00e9but r\u00e9elles peuvent diff\u00e9rer.\n    <\/p>\n    <p class=\"footnote\">\n      ** Apr\u00e8s l\u2019embargo sur le p\u00e9trole arabe, d\u2019autres facteurs \u00e9conomiques et\n      mon\u00e9taires ont eu une incidence n\u00e9gative sur le nombre de jours\n      n\u00e9cessaires pour renouer avec l\u2019\u00e9quilibre; cet \u00e9v\u00e9nement n\u2019est pas pris en\n      compte dans la moyenne.\n    <\/p>\n    <p class=\"disclaimer mb-4\">\n      Sources : RBC Gestion de patrimoine, RBC Gestion mondiale d\u2019actifs,\n      National Security Archive \u00e0 l\u2019Universit\u00e9 George Washington, Wikip\u00e9dia,\n      U.S. Naval Institute\n    <\/p>\n\n    <!-- SECTION -->\n    <h2>Donn\u00e9es fondamentales \u00e9conomiques : r\u00e9alit\u00e9s et risques actuels<\/h2>\n    <p>\n      Les tendances de l\u2019\u00e9conomie et des b\u00e9n\u00e9fices des soci\u00e9t\u00e9s influent\n      fortement sur le rendement des march\u00e9s boursiers \u00e0 moyen et \u00e0 long terme,\n      et les interventions militaires peuvent avoir une incidence sur ces\n      tendances dans de rares cas.\n    <\/p>\n    <p>\n      La bonne nouvelle, c\u2019est qu\u2019en amont de la crise au Moyen-Orient, nos\n      indicateurs \u00e9conomiques avanc\u00e9s aux \u00c9tats-Unis n\u2019indiquaient pas de\n      risques accrus de r\u00e9cession dans ce pays. Les tendances des d\u00e9penses de\n      consommation, du secteur des services et de l\u2019emploi ont \u00e9t\u00e9 relativement\n      robustes, mais ce dernier pr\u00e9sente des difficult\u00e9s sous la surface. La\n      p\u00e9riode actuelle de publication des r\u00e9sultats du quatri\u00e8me trimestre de\n      2025 a montr\u00e9 des tendances respectables en mati\u00e8re de b\u00e9n\u00e9fices, de\n      revenus et de marges b\u00e9n\u00e9ficiaires, et les pr\u00e9visions consensuelles de\n      b\u00e9n\u00e9fices ont encore \u00e9t\u00e9 relev\u00e9es.\n    <\/p>\n    <p>\n      Malgr\u00e9 des pr\u00e9visions de croissance du PIB des \u00c9tats-Unis sup\u00e9rieures \u00e0 la\n      moyenne pour 2026, RBC Gestion mondiale d\u2019actifs estime que la crise au\n      Moyen-Orient \u00ab a entra\u00een\u00e9 un nouveau risque macro [\u00e9conomique] important\n      et, m\u00eame si ce type d\u2019intervention militaire n\u2019a habituellement pas\n      d\u2019importance \u00e9conomique durable, nous reconnaissons que l\u2019\u00e9ventail des\n      r\u00e9sultats potentiels pour l\u2019\u00e9conomie et les march\u00e9s s\u2019est \u00e9largi. L\u2019Iran\n      et le Moyen-Orient sont des sources essentielles d\u2019\u00e9nergie pour le monde\n      et, si le conflit se prolonge, voire s\u2019intensifie, les restrictions \u00e0\n      l\u2019offre de p\u00e9trole ou la hausse des prix du p\u00e9trole brut pourraient\n      entraver l\u2019activit\u00e9 \u00e9conomique ou peser sur la confiance\n      des investisseurs. \u00bb\n    <\/p>\n    <p>\n      L\u2019\u00e9quipe de la strat\u00e9gie relative aux produits de base de RBC March\u00e9s des\n      Capitaux a pr\u00e9venu que, dans un sc\u00e9nario de conflit prolong\u00e9, le cours du\n      p\u00e9trole pourrait atteindre plus de 100 $ le baril, et les prix mondiaux du\n      gaz naturel pourraient atteindre leur plus haut niveau depuis le premier\n      trimestre de 2023.\n    <\/p>\n    <p>\n      En ce qui concerne le march\u00e9 boursier am\u00e9ricain, l\u2019\u00e9quipe Strat\u00e9gie sur\n      actions de RBC March\u00e9s des Capitaux formule une mise en garde importante\n      au sujet des prix de l\u2019\u00e9nergie : \u00ab \u2026 la principale question n\u2019est pas de\n      savoir s\u2019il y a une flamb\u00e9e \u00e0 court terme des prix du p\u00e9trole. Ce qui est\n      plus pertinent pour les actions, \u00e0 notre avis, est de savoir si une\n      incidence soutenue sur les prix du p\u00e9trole est observ\u00e9e, ce qui, selon\n      nous, pourrait nuire davantage \u00e0 la confiance \u00e0 divers degr\u00e9s. \u00bb\n    <\/p>\n    <p>\n      Selon nous, si un long choc p\u00e9trolier se produit et qu\u2019il alimente\n      l\u2019inflation, une grande partie de la population am\u00e9ricaine n\u2019a pas\n      beaucoup de marge de man\u0153uvre pour l\u2019absorber. De nombreux m\u00e9nages sont\n      toujours aux prises avec la hausse cumulative de 26 % de l\u2019inflation des\n      prix \u00e0 la consommation qui s\u2019est produite depuis janvier 2020, juste avant\n      la COVID-19.\n    <\/p>\n    <!-- SECTION -->\n    <h2>Les replis sont normaux<\/h2>\n    <p>\n      Nous croyons qu\u2019il est prudent pour les investisseurs de supposer que les\n      risques militaires et g\u00e9opolitiques peuvent entra\u00eener le march\u00e9 boursier\n      am\u00e9ricain dans un repli temporaire de 5 % \u00e0 10 % ou, dans de rares cas,\n      dans une correction encore plus durable de plus grande ampleur.\n    <\/p>\n    <p>\n      De plus, comme l\u2019indice S&amp;P 500 se rapproche actuellement de son\n      sommet historique, de tels d\u00e9lestages doivent \u00eatre mis en perspective.\n      Bien que la baisse moyenne de 6 % des 20 derniers \u00e9pisodes ne soit pas\n      n\u00e9gligeable, elle se situe bien \u00e0 l\u2019int\u00e9rieur des limites d\u2019un repli\n      typique et modeste dans de nombreux sc\u00e9narios auxquels les march\u00e9s sont\n      souvent confront\u00e9s, y compris des sc\u00e9narios qui n\u2019ont rien \u00e0 voir avec\n      des affrontements militaires.\n    <\/p>\n    <p>\n      Les brefs replis en milieu d\u2019ann\u00e9e sont courants, m\u00eame lorsque le march\u00e9\n      finit par se comporter bien pour l\u2019ensemble de l\u2019ann\u00e9e. L\u2019indice\n      S&amp;P 500 a fl\u00e9chi d\u2019au moins 10 % \u00e0 un moment donn\u00e9 au cours de l\u2019ann\u00e9e\n      lors de plus de la moiti\u00e9 des ann\u00e9es \u00e9coul\u00e9es depuis 1980.\n    <\/p>\n    <p>\n      Comme nous l\u2019avons d\u00e9j\u00e0 soulign\u00e9, les ann\u00e9es d\u2019\u00e9lections de mi-mandat ont\n      souvent \u00e9t\u00e9 accompagn\u00e9es de turbulences sur les march\u00e9s. Au cours des\n      23 ann\u00e9es de mi-mandat \u00e9coul\u00e9es depuis 1934, l\u2019indice S&amp;P 500 a connu\n      un repli digne de mention, affichant une baisse moyenne du sommet au creux\n      d\u2019un peu plus de 20 % \u2013 habituellement suivie, il faut le dire, d\u2019un\n      rebond robuste o\u00f9 de nouveaux sommets sont atteints.\n    <\/p>\n    <p>\n      S\u2019il n\u2019est pas possible de maintenir la r\u00e9partition actuelle en actions du\n      portefeuille d\u2019un investisseur pendant ces types de baisses et d\u2019\u00e9pisodes\n      de volatilit\u00e9, il pourrait exister un d\u00e9calage entre la pond\u00e9ration des\n      actions et les besoins de liquidit\u00e9, la tol\u00e9rance au risque ou l\u2019horizon\n      de placement qui devrait \u00eatre corrig\u00e9.\n    <\/p>\n    <!-- SECTION -->\n    <h2>Planifier en cas de volatilit\u00e9<\/h2>\n    <p>\n      Nous recommandons le maintien d\u2019une pond\u00e9ration des actions am\u00e9ricaines\n      \u00e9gale \u00e0 celle du march\u00e9 (niveau de r\u00e9partition strat\u00e9gique \u00e0 long terme)\n      dans les portefeuilles, tant que les indicateurs signalent que l\u2019expansion\n      \u00e9conomique aux \u00c9tats-Unis devrait persister et que la croissance des\n      b\u00e9n\u00e9fices de l\u2019indice S&amp;P 500 n\u2019est pas s\u00e9rieusement menac\u00e9e.\n    <\/p>\n    <p>\n      Toutefois, nous sommes conscients que la crise au Moyen-Orient est tr\u00e8s\n      fluide et impr\u00e9visible, et que les \u00e9v\u00e9nements pourraient s\u2019intensifier.\n    <\/p>\n    <p>\n      Nous pensons qu\u2019il est prudent de s\u2019attendre \u00e0 une volatilit\u00e9 des march\u00e9s\n      potentiellement inqui\u00e9tante cette ann\u00e9e et de planifier en fonction de\n      celle-ci.\n    <\/p>\n    <p>\n      Pour en savoir plus sur les risques li\u00e9s au p\u00e9trole brut et au gaz naturel\n      li\u00e9s \u00e0 cette crise et obtenir notre point de vue sur les perspectives des\n      principaux march\u00e9s boursiers et obligataires, consultez notre r\u00e9cent\n      rapport\n      <a\n        href=\"https:\/\/www.rbcwealthmanagement.com\/assets\/wp-content\/uploads\/documents\/insights\/GI_2026-03_EN.pdf\" target=\"_blank\"\n        title=\"Global Insight, March 2026 [anglais]\"\n        >Perspectives&nbsp;mondiales<\/a\n      >\n      [en anglais] de mars.\n    <\/p>\n","protected":false},"excerpt":{"rendered":"<p>Pendant que le Moyen-Orient est aux prises avec une crise aigu\u00eb, il est utile de tenir compte de la fa\u00e7on dont les conflits militaires et les \u00e9v\u00e9nements g\u00e9opolitiques importants pr\u00e9c\u00e9dents ont influ\u00e9 sur le march\u00e9 boursier am\u00e9ricain et de ce que peuvent retenir de l\u2019histoire les investisseurs aujourd\u2019hui.<\/p>\n","protected":false},"author":22,"featured_media":28548,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"rbcwm_post_date":"2026-03-05T13:28:03","editor_notices":[],"rbc_url_alias":"","rbcwm_featured_desktop_image_position":"","rbcwm_featured_mobile_image_position":"","_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[510],"tags":[444,1116,1114,1115,1090,1113,751],"rbcwm_content_owner":[675],"rbcwm_need":[],"rbcwm_segment":[],"rbcwm_solution":[],"rbcwm_topic":[590],"rbcwm_channel":[],"rbcwm_format":[],"class_list":["post-28544","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-analyse","tag-actions","tag-actions-americaines","tag-crise-au-moyen-orient","tag-lhuile","tag-marche-boursier","tag-moyen-orient","tag-sp-500","rbcwm_content_owner-pag","rbcwm_topic-global-insights"],"acf":{"rbcwm_subtitle":"Pendant que le 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