{"id":33505,"date":"2026-05-19T16:17:04","date_gmt":"2026-05-19T16:17:04","guid":{"rendered":"https:\/\/99bitcoins.com\/fr\/?p=33505"},"modified":"2026-05-18T10:02:33","modified_gmt":"2026-05-18T10:02:33","slug":"bitcoin-crash-liquidation-trump-iran-geopolitical-volatility","status":"publish","type":"post","link":"https:\/\/99bitcoins.com\/fr\/actu\/bitcoin-crash-liquidation-trump-iran-geopolitical-volatility\/","title":{"rendered":"Bitcoin : 660M$ liquid\u00e9s apr\u00e8s un tweet de Trump sur l&rsquo;Iran"},"content":{"rendered":"<p>Plus de 660 millions de dollars de positions crypto ont \u00e9t\u00e9 balay\u00e9s en seulement 24 heures apr\u00e8s que le pr\u00e9sident Trump a publi\u00e9 un avertissement s\u00e9v\u00e8re \u00e0 l&rsquo;encontre de l&rsquo;Iran sur Truth Social. Ce message a fait chuter le Bitcoin de 82 000 $ \u00e0 un plus bas de plusieurs semaines, atteignant 76 650 $.<\/p>\r\n<p>Le m\u00e9canisme derri\u00e8re ce chiffre colossal n&rsquo;est pas le fruit d&rsquo;une panique vendeuse des d\u00e9tenteurs ordinaires, mais celui de positions longues sur-endett\u00e9es agissant comme un pi\u00e8ge pr\u00eat \u00e0 se refermer, le titre g\u00e9opolitique ayant simplement servi de d\u00e9clencheur.<\/p>\r\n<p>Si vous n&rsquo;avez jamais utilis\u00e9 le trading sur marge et que vous vous demandez comment une simple publication sur les r\u00e9seaux sociaux peut effacer les deux tiers d&rsquo;un milliard de dollars en quelques minutes, vous posez la bonne question. Voici comment cela fonctionne, pourquoi cela se r\u00e9p\u00e8te, et ce que cela signifie pour la s\u00e9curit\u00e9 de vos investissements crypto.<\/p>\r\n<p><blockquote class=\"twitter-tweet\" data-width=\"500\" data-dnt=\"true\"><p lang=\"en\" dir=\"ltr\"><a href=\"https:\/\/twitter.com\/search?q=%24BTC&amp;src=ctag&amp;ref_src=twsrc%5Etfw\" rel=\"nofollow\" target=\"_blank\">$BTC<\/a> has dropped below the $77,000 level.<br><br>The key support zone is $75,000 which might get retested next.<br><br>After that, a rally is expected especially because of a new CME gap around $79,200 level. <a href=\"https:\/\/t.co\/smg5oCPmHf\" rel=\"nofollow\" target=\"_blank\">pic.twitter.com\/smg5oCPmHf<\/a><\/p>&mdash; Ted (@TedPillows) <a href=\"https:\/\/twitter.com\/TedPillows\/status\/2056297896476278912?ref_src=twsrc%5Etfw\" rel=\"nofollow\" target=\"_blank\">May 18, 2026<\/a><\/blockquote><script async src=\"https:\/\/platform.twitter.com\/widgets.js\" charset=\"utf-8\"><\/script><\/p>\r\n<h2>Pourquoi 677M$ ont-ils disparu si vite lors du r\u00e9cent crash du Bitcoin ?<\/h2>\r\n<p>Imaginez l&rsquo;effet de levier comme une hypoth\u00e8que pour un investissement. Une banque vous permet d&rsquo;acheter une maison de 300 000 $ avec un apport de 30 000 $ ; vous contr\u00f4lez un actif important avec une fraction de sa valeur r\u00e9elle. Si le prix de la maison chute de 10 %, vous perdez la totalit\u00e9 de votre apport. La banque n&rsquo;attend pas que la situation s&rsquo;aggrave ; elle force la vente pour r\u00e9cup\u00e9rer son argent en priorit\u00e9.<\/p>\r\n<p>C&rsquo;est pr\u00e9cis\u00e9ment ainsi que fonctionne le levier en crypto. Concr\u00e8tement, si vous placez 1 000 $ dans une position longue avec un levier de 10x sur le Bitcoin, vous contr\u00f4lez effectivement 10 000 $ de BTC. Une baisse de prix de 10 % ne vous co\u00fbte pas 100 $, elle efface vos 1 000 $. La plateforme d&rsquo;\u00e9change ferme automatiquement votre position pour se prot\u00e9ger. Cette fermeture forc\u00e9e est appel\u00e9e une liquidation.<\/p>\r\n<p>Avec un levier de 20x, un mouvement de 5 % contre vous met fin \u00e0 votre transaction. \u00c0 50x, ce que certaines plateformes autorisent, une baisse de 2 % suffit. Lorsque le Bitcoin a chut\u00e9 d&rsquo;environ 5 000 $ depuis son sommet de 82 000 $, les traders utilisant un levier \u00e9lev\u00e9 n&rsquo;avaient aucune marge de man\u0153uvre pour absorber la perte.<\/p>\r\n<p>Selon les donn\u00e9es de <a href=\"https:\/\/www.coinglass.com\/etf\/bitcoin\" target=\"_blank\" rel=\"noopener nofollow\">Coinglass<\/a>, Binance et OKX ont enregistr\u00e9 les volumes de liquidation les plus \u00e9lev\u00e9s, ciblant directement les traders particuliers utilisant des leviers de 10x \u00e0 100x. Plus de 610 millions de dollars sur les 660 millions de liquidations totales ont eu lieu dans l&rsquo;heure ou les deux heures suivant le post de Trump.<\/p>\r\n\r\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/99bitcoins.com\/fr\/wp-content\/uploads\/sites\/4\/2026\/05\/content-img-1-11.jpg\" alt=\"\" \/><\/figure>\r\n\r\n<p>(SOURCE : <a href=\"https:\/\/www.coinglass.com\/liquidations\" target=\"_blank\" rel=\"noopener nofollow\">CoinGlass<\/a>)<\/p>\r\n<h2>Pourquoi les positions longues sur-endett\u00e9es ont aliment\u00e9 la chute<\/h2>\r\n<p>Voici l&rsquo;\u00e9l\u00e9ment qui surprend la plupart des d\u00e9butants : les liquidations elles-m\u00eames ont aggrav\u00e9 le crash du Bitcoin. Il ne s&rsquo;agissait pas seulement d&rsquo;une chute de prix entra\u00eenant des pertes pour les traders. Les transactions perdantes ont activement pouss\u00e9 le prix vers le bas.<\/p>\r\n<p>Lorsque la premi\u00e8re vague de positions longues a atteint ses prix de liquidation, les bourses ont automatiquement vendu leur Bitcoin, d\u00e9clenchant des ventes massives sur le march\u00e9 qui ont imm\u00e9diatement impact\u00e9 le carnet d&rsquo;ordres. Cette pression vendeuse a fait baisser le prix un peu plus.<\/p>\r\n<p>Cette baisse incr\u00e9mentale a ensuite pouss\u00e9 la tranche suivante de positions \u00e0 effet de levier sous leur seuil de liquidation, d\u00e9clenchant une autre vague de ventes forc\u00e9es, puis une autre. Cette cascade est enti\u00e8rement algorithmique : pas d&rsquo;\u00e9motion humaine, pas d&rsquo;h\u00e9sitation, juste une ex\u00e9cution automatique, chaque couche d\u00e9clenchant la suivante.<\/p>\r\n<p><blockquote class=\"twitter-tweet\" data-width=\"500\" data-dnt=\"true\"><p lang=\"en\" dir=\"ltr\">MARKET REPORT | Crypto Sees Major Leverage Reset<br><br>Over the past 48 hours, Bitcoin fell from the $80K\u2013$82K range to as low as ~$76.7K, triggering more than $600M in liquidations across the crypto market, mostly long positions.<br><br>Ethereum dropped below ~$2.2K while altcoins saw even\u2026 <a href=\"https:\/\/t.co\/65prGQKzkB\" rel=\"nofollow\" target=\"_blank\">pic.twitter.com\/65prGQKzkB<\/a><\/p>&mdash; Shibarium | SHIB.IO (@Shibizens) <a href=\"https:\/\/twitter.com\/Shibizens\/status\/2056258161292554693?ref_src=twsrc%5Etfw\" rel=\"nofollow\" target=\"_blank\">May 18, 2026<\/a><\/blockquote><script async src=\"https:\/\/platform.twitter.com\/widgets.js\" charset=\"utf-8\"><\/script><\/p>\r\n<p>C\u2019est pourquoi les <a href=\"https:\/\/99bitcoins.com\/news\/presales\/btc-usd-fall-iran-peace-deal\/\" target=\"_blank\" rel=\"nofollow noopener sponsored\">titres g\u00e9opolitiques et la volatilit\u00e9 crypto forment une combinaison si dangereuse<\/a>. L&rsquo;actualit\u00e9 fournit l&rsquo;\u00e9tincelle, mais l&rsquo;effet de levier accumul\u00e9 sur le march\u00e9 est le carburant. Dans les semaines pr\u00e9c\u00e9dant cet \u00e9v\u00e9nement, les taux de financement sur les principales bourses \u00e9taient devenus nettement positifs, signalant un march\u00e9 en surchauffe o\u00f9 les traders pariaient massivement sur une poursuite de la hausse.<\/p>\r\n<p>Ce positionnement signifiait que tout mouvement brusque vers le bas d\u00e9clencherait une vente d\u00e9mesur\u00e9e. Des observateurs du march\u00e9 ont not\u00e9 que les taux de financement et l&rsquo;int\u00e9r\u00eat ouvert \u00e9taient devenus excessifs avant chaque titre concernant Trump et l&rsquo;Iran, transformant toute surprise n\u00e9gative en une cascade de ventes forc\u00e9es pour les positions longues sur-endett\u00e9es.<\/p>\r\n<p>Ce n&rsquo;\u00e9tait d&rsquo;ailleurs pas une premi\u00e8re pour ce cycle. Le 22 mars, un ultimatum similaire de Trump envers l&rsquo;Iran avait fait chuter le Bitcoin d&rsquo;environ 75 900 $ \u00e0 pr\u00e8s de 68 000 $ en quelques heures, d\u00e9clenchant entre 300 millions et 1 milliard de dollars de liquidations selon les m\u00e9thodes de calcul, avec 85 % de ces liquidations frappant des positions longues. Le sch\u00e9ma se r\u00e9p\u00e8te car la structure du march\u00e9 \u2014 levier \u00e9lev\u00e9 et positions concentr\u00e9es \u2014 continue de se reconstruire entre chaque gros titre.<\/p>","protected":false},"excerpt":{"rendered":"<p>Le Bitcoin chute sous les 77 000 $ apr\u00e8s un avertissement de Trump \u00e0 l&rsquo;Iran, provoquant 660 millions de dollars de liquidations en 24 heures.<\/p>\n","protected":false},"author":135978,"featured_media":33503,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"categories":[6],"tags":[],"coin":[15],"class_list":["post-33505","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-actu"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Bitcoin : 660M$ liquid\u00e9s apr\u00e8s un tweet 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