{"id":34635,"date":"2026-05-07T21:59:15","date_gmt":"2026-05-07T21:59:15","guid":{"rendered":"https:\/\/volity.io\/blog\/what-is-margin-in-cfd-trading-2\/"},"modified":"2026-05-19T17:52:42","modified_gmt":"2026-05-19T17:52:42","slug":"what-is-margin-in-cfd-trading","status":"publish","type":"post","link":"https:\/\/volity.io\/fr\/cfd\/what-is-margin-in-cfd-trading\/","title":{"rendered":"Qu&rsquo;est-ce que la marge en trading CFD ?"},"content":{"rendered":"\n    <style>\n    .vd-wrap {\n        display: flex;\n        align-items: flex-start;\n        gap: 20px;\n        background: #ffffff;\n        border: 1px solid #f2f4f7;\n        border-left: 4px solid #c0392b;\n        border-radius: 12px;\n        padding: 24px;\n        margin: 30px 0;\n        box-sizing: border-box;\n        width: 100%;\n        box-shadow: 0 4px 20px rgba(0,0,0,0.04);\n        position: relative;\n        overflow: hidden;\n    }\n    .vd-wrap::after {\n        content: \"\";\n        position: absolute;\n        right: -20px;\n        bottom: -20px;\n        width: 100px;\n        height: 100px;\n        background: radial-gradient(circle, rgba(192, 57, 43, 0.03) 0%, transparent 70%);\n        pointer-events: none;\n    }\n    .vd-icon {\n        flex-shrink: 0;\n        background: #fff5f4;\n        border: 1px solid #fee2e1;\n        border-radius: 8px;\n        width: 40px;\n        height: 40px;\n        display: flex;\n        align-items: center;\n        justify-content: center;\n    }\n    .vd-icon svg { width: 22px; height: 22px; }\n    .vd-content { flex: 1; min-width: 0; }\n    .vd-label {\n        display: block;\n        font-size: 11px;\n        font-weight: 800;\n        letter-spacing: 0.1em;\n        text-transform: uppercase;\n        color: #c0392b;\n        margin-bottom: 8px;\n        font-family: \"Inter\", sans-serif;\n    }\n    .vd-text {\n        font-size: 14px;\n        line-height: 1.6;\n        color: #475467;\n        margin: 0;\n        font-family: \"Inter\", sans-serif;\n    }\n    .vd-text p { margin: 0 0 10px 0; }\n    .vd-text p:last-child { margin-bottom: 0; }\n    .vd-text strong { color: #101828; font-weight: 600; }\n    .vd-text a { color: #c0392b; text-decoration: underline; }\n    @media (max-width: 600px) {\n        .vd-wrap { flex-direction: column; gap: 12px; padding: 20px; }\n        .vd-icon { width: 32px; height: 32px; }\n    }\n    <\/style>\n\n    <div class=\"vd-wrap\" role=\"alert\" aria-label=\"Divulgation des risques\">\n        <div class=\"vd-icon\">\n            <svg viewBox=\"0 0 24 24\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\">\n                <path d=\"M12 9V14M12 17.01L12.01 16.998M12 21C16.9706 21 21 16.9706 21 12C21 7.02944 16.9706 3 12 3C7.02944 3 3 7.02944 3 12C3 16.9706 7.02944 21 12 21Z\" stroke=\"#c0392b\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\/>\n            <\/svg>\n        <\/div>\n        <div class=\"vd-content\">\n            <span class=\"vd-label\">Avertissement R\u00e9glementaire sur les Risques<\/span>\n            <div class=\"vd-text\"><p>Investir dans des produits financiers comporte des risques. Les pertes peuvent d\u00e9passer la valeur de votre investissement initial.<\/p><\/div>\n        <\/div>\n    <\/div>\n\r\n\r\n\r\n\r\n\r\n<div class=\"wp-block-group volity-quick-answer\" data-volity-quick-answer=\"2026-05-08\" style=\"border-color:#0066cc;border-width:4px;border-radius:8px;padding:20px;background:#f7f9fc;border-left:4px solid #0066cc\"><div class=\"wp-block-group__inner-container is-layout-flow wp-block-group-is-layout-flow\">\r\n\r\n<h2 class=\"wp-block-heading volity-qa-heading\">R\u00e9ponse rapide<\/h2>\r\n\r\n\r\n\r\n<p>La marge en trading CFD est le d\u00e9p\u00f4t qu&rsquo;un trader place pour ouvrir une position \u00e0 effet de levier, exprim\u00e9e en pourcentage de l&rsquo;exposition totale. La marge initiale ouvre la position (3,33 % sur les paires FX majeures avec un levier 1:30). La marge de maintenance la maintient ouverte. Si l&rsquo;\u00e9quit\u00e9 passe sous le seuil de maintenance, un appel de marge est d\u00e9clench\u00e9 ; sous le seuil de stop-out (g\u00e9n\u00e9ralement 50 %), le courtier ferme automatiquement la position pour prot\u00e9ger le compte.<\/p>\r\n\r\n<\/div><\/div>\r\n\r\n\r\n<p>La marge en trading CFD correspond \u00e0 la tr\u00e9sorerie que vous d\u00e9posez pour ouvrir et maintenir une position \u00e0 effet de levier. Ce n&rsquo;est pas un frais, c&rsquo;est une garantie. Votre courtier la conserve face aux pertes potentielles sur la position. La marge est exprim\u00e9e en pourcentage de la valeur notionnelle de la transaction, et l&rsquo;inverse de ce pourcentage est votre levier. Une exigence de marge de 5 % correspond \u00e0 un levier de 1:20. Une exigence de marge de 3,33 % correspond \u00e0 un levier de 1:30.<\/p>\r\n\r\n<h2>Les trois chiffres de marge qui pilotent une transaction CFD<\/h2>\r\n<ol>\r\n<li><strong>Marge initiale<\/strong>. Le d\u00e9p\u00f4t requis pour ouvrir la position. Fix\u00e9 par la r\u00e9glementation dans l&rsquo;EEE : 3,33 % sur les paires FX majeures (1:30), 5 % sur les paires FX non majeures, les indices et l&rsquo;or (1:20), 10 % sur les autres mati\u00e8res premi\u00e8res (1:10), 20 % sur les actions individuelles (1:5), 50 % sur les cryptoactifs (1:2).<\/li>\r\n<li><strong>Marge de maintenance<\/strong>. L&rsquo;\u00e9quit\u00e9 minimale requise pour maintenir la position ouverte. Sous ce niveau, le courtier \u00e9met un appel de marge.<\/li>\r\n<li><strong>Cl\u00f4ture pour marge insuffisante<\/strong>. L&rsquo;ESMA impose une cl\u00f4ture automatique lorsque l&rsquo;\u00e9quit\u00e9 du compte tombe \u00e0 50 % de l&rsquo;exigence de marge initiale sur les positions ouvertes. Le courtier ferme les positions pour vous ramener au-dessus du seuil.<\/li>\r\n<\/ol>\r\n\r\n<h2>Comment la marge fonctionne en chiffres concrets<\/h2>\r\n<p>Vous voulez une exposition longue sur EUR\/USD de 100 000 (un lot standard) \u00e0 1,0850. Valeur notionnelle : 108 500 $.<\/p>\r\n<ul>\r\n<li>Levier retail FX majeur : 1:30. Marge initiale = 3,33 %.<\/li>\r\n<li>Marge initiale en cash : 108 500 $ x 3,33 % = 3 613 $.<\/li>\r\n<li>Si EUR\/USD baisse de 100 pips \u00e0 1,0750, votre position perd 1 000 $.<\/li>\r\n<li>\u00c9quit\u00e9 restante sur la position : 3 613 $ &#8211; 1 000 $ = 2 613 $.<\/li>\r\n<li>C&rsquo;est 72 % de la marge initiale, encore au-dessus du seuil de cl\u00f4ture \u00e0 50 %.<\/li>\r\n<li>Si EUR\/USD baisse encore de 80 pips \u00e0 1,0670, l&rsquo;\u00e9quit\u00e9 passe sous 50 % de la marge initiale et le courtier ferme automatiquement.<\/li>\r\n<\/ul>\r\n\r\n<h2>Marge libre vs marge utilis\u00e9e<\/h2>\r\n<ul>\r\n<li><strong>Marge utilis\u00e9e<\/strong>. Le total des marges initiales engag\u00e9es sur l&rsquo;ensemble des positions ouvertes.<\/li>\r\n<li><strong>Marge libre<\/strong>. Solde du compte plus P&#038;L flottant moins la marge utilis\u00e9e. La marge de man\u0153uvre pour ouvrir de nouvelles positions ou encaisser des mouvements d\u00e9favorables.<\/li>\r\n<li><strong>Niveau de marge<\/strong>. \u00c9quit\u00e9 divis\u00e9e par la marge utilis\u00e9e, exprim\u00e9e en pourcentage. \u00c0 100 %, vous \u00eates enti\u00e8rement consomm\u00e9 ; \u00e0 50 %, la cl\u00f4ture se d\u00e9clenche.<\/li>\r\n<\/ul>\r\n\r\n<h2>Quand utiliser la marge a-t-il du sens ?<\/h2>\r\n<ul>\r\n<li><strong>Transactions directionnelles de court terme<\/strong> o\u00f9 l&rsquo;efficacit\u00e9 du capital compte et o\u00f9 l&rsquo;horizon se mesure en jours, pas en mois.<\/li>\r\n<li><strong>Couverture d&rsquo;une exposition existante<\/strong> sans immobiliser du cash \u00e9gal au notionnel.<\/li>\r\n<li><strong>Paires et trades de valeur relative<\/strong> o\u00f9 deux positions oppos\u00e9es partagent une seule exigence de marge.<\/li>\r\n<li><strong>Vous avez \u00e9crit votre stop-loss avant l&rsquo;entr\u00e9e<\/strong> et la position est dimensionn\u00e9e pour que le pire des cas ne repr\u00e9sente qu&rsquo;une petite fraction de l&rsquo;\u00e9quit\u00e9 du compte.<\/li>\r\n<\/ul>\r\n\r\n<h2>Ce qui peut mal tourner<\/h2>\r\n<ul>\r\n<li><strong>Marge pouss\u00e9e \u00e0 fond<\/strong>. Ouvrir des positions \u00e0 95 % de la marge disponible. Un mouvement d\u00e9favorable de 0,5 % d\u00e9clenche un appel de marge. Aucune marge de r\u00e9flexion.<\/li>\r\n<li><strong>Renforcer les positions perdantes<\/strong>. La position bouge contre vous, l&rsquo;\u00e9quit\u00e9 baisse, le trader injecte plus de marge pour maintenir la position. La taille de la perte se compose avec la taille de l&rsquo;erreur de conviction.<\/li>\r\n<li><strong>Contamination cross-margin<\/strong>. Une position perdante consomme la marge d&rsquo;une position gagnante. Les deux se ferment \u00e0 des prix d\u00e9favorables.<\/li>\r\n<li><strong>Gaps de week-end<\/strong>. Les actions et les indices peuvent ouvrir avec un gap de 3 \u00e0 5 % le lundi apr\u00e8s un titre du week-end. Les stops ne s&rsquo;ex\u00e9cutent pas aux prix affich\u00e9s. La protection contre solde n\u00e9gatif plafonne le d\u00e9g\u00e2t \u00e0 l&rsquo;\u00e9quit\u00e9 du compte, pas \u00e0 la marge.<\/li>\r\n<\/ul>\r\n\r\n<h2>La marge chez Volity<\/h2>\r\n<p>Volity propose des exigences de marge retail conformes \u00e0 l&rsquo;ESMA sur l&rsquo;ensemble des classes d&rsquo;actifs CFD : 3,33 % sur le FX majeur, 5 % sur le FX non majeur, les indices majeurs et l&rsquo;or, 10 % sur les autres mati\u00e8res premi\u00e8res, 20 % sur les actions individuelles, 50 % sur les cryptoactifs. La protection contre solde n\u00e9gatif s&rsquo;applique sur les comptes retail. L&rsquo;ex\u00e9cution des transactions est assur\u00e9e par UBK Markets Ltd, entreprise d&rsquo;investissement chypriote agr\u00e9\u00e9e par la CySEC sous licence 186\/12. Les clients retail \u00e9ligibles sont couverts par le Fonds chypriote d&rsquo;indemnisation des investisseurs jusqu&rsquo;\u00e0 20 000 EUR par client par firme.<\/p>\r\n\r\n\r\n\r\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\r\n\r\n\r\n\r\n<div class=\"wp-block-group volity-authority-footer\" data-volity-authority=\"seo-2026-05-08-custom\"><div class=\"wp-block-group__inner-container is-layout-flow wp-block-group-is-layout-flow\">\r\n\r\n<h3 class=\"wp-block-heading\">Sources v\u00e9rifi\u00e9es<\/h3>\r\n\r\n\r\n\r\n<ul class=\"wp-block-list\"><li><a href=\"https:\/\/www.esma.europa.eu\/sites\/default\/files\/library\/esma35-43-1397_esma_statement_product_intervention_cfds_2018.pdf\" rel=\"noopener\" target=\"_blank\">R\u00e8gles ESMA sur la marge CFD<\/a><\/li><li><a href=\"https:\/\/www.cysec.gov.cy\/en-GB\/entities\/investment-firms\/\" rel=\"noopener\" target=\"_blank\">Registre des entreprises d&rsquo;investissement CySEC<\/a><\/li><li><a href=\"https:\/\/www.cfainstitute.org\/en\/research\" rel=\"noopener\" target=\"_blank\">Recherche CFA Institute<\/a><\/li><\/ul>\r\n\r\n\r\n\r\n<h3 class=\"wp-block-heading\">\u00c0 lire aussi sur Volity<\/h3>\r\n\r\n\r\n\r\n<ul class=\"wp-block-list\"><li><a href=\"https:\/\/volity.io\/cfd\/cfd-leverage-trading\/\">Trading CFD \u00e0 effet de levier<\/a><\/li><li><a href=\"https:\/\/volity.io\/cfd\/what-is-cfd-trading\/\">Qu&rsquo;est-ce que le trading CFD ? Guide complet 2026<\/a><\/li><li><a href=\"https:\/\/volity.io\/fr\/glossary-fr\/what-is-margin-in-trading\/\">Qu&rsquo;est-ce que la marge en trading<\/a><\/li><li><a href=\"https:\/\/volity.io\/fr\/glossary-fr\/what-is-leverage-in-forex\/\">Qu&rsquo;est-ce que l&rsquo;effet de levier en forex<\/a><\/li><li><a href=\"https:\/\/volity.io\/fr\/glossary-fr\/what-is-stop-out\/\">Qu&rsquo;est-ce qu&rsquo;un stop out<\/a><\/li><\/ul>\r\n\r\n\r\n\r\n<p class=\"volity-last-reviewed\" style=\"font-size:13px;color:#5a6577;margin-top:18px\"><em>Derni\u00e8re r\u00e9vision : 2026-05-08 par Alexander Bennett, analyste financier principal chez Volity. Nous mettons \u00e0 jour cet article chaque fois que les donn\u00e9es de march\u00e9 sous-jacentes, le cadre r\u00e9glementaire ou les fonctionnalit\u00e9s de la plateforme \u00e9voluent.<\/em><\/p>\r\n\r\n<\/div><\/div>\r\n\n\n\n    <style>\n    .volity-coi {\n        background: #fff;\n        border: 1px solid #c5d8ee;\n        border-radius: 8px;\n        margin: 32px 0;\n        font-family: \"Inter\", sans-serif;\n        font-size: 13.5px;\n        line-height: 1.75;\n        color: #4a4a4a;\n        box-sizing: border-box;\n        width: 100%;\n        overflow: hidden;\n    }\n    .volity-coi .coi-heading {\n        display: block;\n        background: #2c6fad;\n        color: #fff;\n        font-size: 11px;\n        font-weight: 700;\n        letter-spacing: 0.09em;\n        text-transform: uppercase;\n        padding: 9px 22px;\n        margin: 0;\n    }\n    .volity-coi .coi-body { padding: 16px 22px; }\n    .volity-coi .coi-body p { margin: 0 0 10px 0; }\n    .volity-coi .coi-body p:last-child { margin-bottom: 0; }\n    .volity-coi a { color: #2c6fad; text-decoration: underline; }\n    @media(max-width:480px) {\n        .volity-coi .coi-body { padding: 14px 16px; font-size: 13px; }\n        .volity-coi .coi-heading { padding: 8px 16px; }\n    }\n    <\/style>\n    <div class=\"volity-coi\" role=\"note\">\n        <span class=\"coi-heading\">\u24d8 Divulgation<\/span>\n        <div class=\"coi-body\"><p>Volity exploite une plateforme de trading et publie \u00e9galement du contenu \u00e9ducatif et analytique sur le trading. Le contenu de cette page est uniquement \u00e0 des fins \u00e9ducatives et ne doit pas \u00eatre consid\u00e9r\u00e9 comme un conseil financier. Volity peut b\u00e9n\u00e9ficier commercialement lorsque les lecteurs ouvrent des comptes de trading via les liens pr\u00e9sents sur ce site.<\/p><p>Notre contenu est produit et r\u00e9vis\u00e9 selon des <a href=\"https:\/\/volity.io\/fr\/editorial-standards\/\">standards \u00e9ditoriaux<\/a> document\u00e9s ; la m\u00e9thodologie de comparaison et de revue est publi\u00e9e <a href=\"https:\/\/volity.io\/fr\/editorial-standards\/review-methodology\/\">ici<\/a>.<\/p><\/div>\n    <\/div>\n\n","protected":false},"excerpt":{"rendered":"<p>R\u00e9ponse rapide La marge en trading CFD est le d\u00e9p\u00f4t qu&rsquo;un trader place pour ouvrir une position \u00e0 effet de levier, exprim\u00e9e [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":28689,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"custom_schema":"","footnotes":""},"categories":[207],"tags":[],"class_list":["post-34635","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-cfd"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.5 (Yoast SEO v27.6) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Marge en trading CFD : initiale, maintenance, stop-out<\/title>\n<meta name=\"description\" content=\"La marge en trading CFD est le d\u00e9p\u00f4t n\u00e9cessaire pour ouvrir une position \u00e0 effet de levier. 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