{"id":37349,"date":"2026-05-29T10:24:28","date_gmt":"2026-05-29T10:24:28","guid":{"rendered":"https:\/\/volity.io\/non-classifiee\/what-is-basis-crypto\/"},"modified":"2026-06-04T17:07:45","modified_gmt":"2026-06-04T17:07:45","slug":"what-is-basis-crypto","status":"publish","type":"post","link":"https:\/\/volity.io\/fr\/glossaire\/what-is-basis-crypto\/","title":{"rendered":"Qu&rsquo;est-ce que la base (basis) en crypto"},"content":{"rendered":"<h2>Comment fonctionne le basis en crypto<\/h2>\n<p>Le basis est l&rsquo;\u00e9cart de prix entre un d\u00e9riv\u00e9 et le prix spot du m\u00eame actif. En crypto, il signifie en g\u00e9n\u00e9ral la diff\u00e9rence entre un future ou un <a href=\"https:\/\/volity.io\/fr\/glossaire\/what-is-a-perpetual-contract\/\">perp\u00e9tuel<\/a> et le spot. Quand le future se traite au-dessus du spot, le basis est positif (contango), refl\u00e9tant un positionnement haussier ou le co\u00fbt de portage ; quand en dessous, il est n\u00e9gatif (backwardation). Le basis converge vers z\u00e9ro \u00e0 mesure qu&rsquo;un future dat\u00e9 approche de l&rsquo;expiration.<\/p>\n<h2>Exemple chiffr\u00e9<\/h2>\n<p>Le Bitcoin spot est \u00e0 60 000 $ et un future \u00e0 trois mois se traite \u00e0 63 000 $, un basis positif de 3 000 $, soit environ 5 % annualis\u00e9. Un trader de basis pourrait acheter le spot et vendre le future, verrouillant ces 3 000 $ \u00e0 mesure que l&rsquo;\u00e9cart se referme \u00e0 l&rsquo;expiration, un trade de portage neutre au march\u00e9. Le risque est le financement et la liquidation si les jambes sont \u00e0 levier, et l&rsquo;\u00e9cart bougeant contre la position avant de converger.<\/p>\n<h2>Le basis comme lecture de march\u00e9<\/h2>\n<p>Le basis est aussi une jauge de sentiment : un basis positif \u00e9lev\u00e9 signale un levier haussier agressif, qui peut se d\u00e9nouer brutalement, tandis qu&rsquo;un basis n\u00e9gatif sugg\u00e8re la peur. Sur Volity, vous exprimez des vues directionnelles crypto via spot ou CFD plut\u00f4t que de monter des trades de basis complexes, mais lire le basis sur les futures ailleurs aide \u00e0 juger \u00e0 quel point le positionnement \u00e0 levier est \u00e9tir\u00e9. C&rsquo;est le levier rendu visible.<\/p>\n<h2>Pourquoi c&rsquo;est important<\/h2>\n<p>Le basis r\u00e9v\u00e8le combien de levier et dans quel sens penche le march\u00e9 des d\u00e9riv\u00e9s, donc un large basis positif est un avertissement que le positionnement haussier est surcharg\u00e9 et fragile. Lisez-le comme un signal de sentiment. \u00c0 lire aussi : <a href=\"https:\/\/volity.io\/fr\/glossaire\/what-is-funding-rate\/\">taux de financement<\/a> et <a href=\"https:\/\/volity.io\/fr\/glossaire\/what-is-a-perpetual-contract\/\">contrat perp\u00e9tuel<\/a>.<\/p>\n<p>Pour aller plus loin, voir notre page <a href=\"https:\/\/volity.io\/fr\/crypto\/\">crypto<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Comment fonctionne le basis en crypto Le basis est l&rsquo;\u00e9cart de prix entre un d\u00e9riv\u00e9 et le prix spot du m\u00eame actif. [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":37380,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"custom_schema":"","footnotes":""},"categories":[258],"tags":[],"class_list":["post-37349","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-glossaire"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.7 (Yoast SEO v27.8) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Qu&#039;est-ce que la base (basis) en crypto<\/title>\n<meta name=\"description\" content=\"La base est l&#039;\u00e9cart entre un d\u00e9riv\u00e9 crypto et le spot. Pilote le rendement de basis-trade, signale le positionnement. 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