{"id":54799,"date":"2026-10-19T13:46:56","date_gmt":"2026-10-19T13:46:56","guid":{"rendered":"https:\/\/volity.io\/blog\/crypto-market-wall-street-2\/"},"modified":"2026-10-20T12:45:28","modified_gmt":"2026-10-20T12:45:28","slug":"crypto-market-wall-street","status":"publish","type":"post","link":"https:\/\/volity.io\/fr\/actualites\/crypto-market-wall-street\/","title":{"rendered":"March\u00e9 crypto : Wall Street, r\u00e9gulation et risques de s\u00e9curit\u00e9"},"content":{"rendered":"<h2>Le nouveau champ de bataille des cryptos : Wall Street, la r\u00e9gulation et la faille de s\u00e9curit\u00e9<\/h2>\n\n<p><b>Lundi 19 octobre 2026.<\/b> La crypto a entam\u00e9 la semaine avec une double personnalit\u00e9. Le Bitcoin panse ses plaies apr\u00e8s de fortes sorties de fonds, tandis que les banques et les soci\u00e9t\u00e9s cot\u00e9es continuent de migrer vers les blockchains publiques.<\/p>\n\n<p>Les traders font donc face \u00e0 un march\u00e9 plus complexe que l&rsquo;ancien cycle d&rsquo;envol\u00e9es et d&rsquo;effondrements. La demande institutionnelle progresse, mais le durcissement de la r\u00e9glementation et les failles de s\u00e9curit\u00e9 persistantes p\u00e8sent d\u00e9sormais tout autant sur les prix.<\/p>\n\n<h2>Les institutions continuent d&rsquo;acheter<\/h2>\n\n<p>Strategy reste la premi\u00e8re entreprise d\u00e9tentrice de Bitcoin, avec environ 848 000 BTC dans ses comptes. Michael Saylor a une fois encore indiqu\u00e9 que d&rsquo;autres achats restaient possibles.<\/p>\n\n<p>Strive a \u00e9galement port\u00e9 ses avoirs au-del\u00e0 de 36 800 BTC. Son dernier achat lui a co\u00fbt\u00e9 environ $100 millions, ajoutant un nouvel acheteur cot\u00e9 \u00e0 un pari d&rsquo;entreprise sur le Bitcoin de plus en plus encombr\u00e9.<\/p>\n\n<p>Ces achats interviennent pourtant dans une p\u00e9riode difficile pour les fonds crypto. Le Bitcoin n&rsquo;a pas r\u00e9ussi \u00e0 retrouver ses niveaux d&rsquo;avant la derni\u00e8re vague de ventes, et les produits d&rsquo;investissement ont enregistr\u00e9 de lourds rachats hebdomadaires.<\/p>\n\n<p>Les produits Ethereum ont subi des retraits encore plus importants que les fonds Bitcoin. Les investisseurs semblent concentrer leur exposition sur l&rsquo;actif le plus profond et le plus liquide du march\u00e9.<\/p>\n\n<p>Les achats des entreprises peuvent stabiliser la demande quand les march\u00e9s faiblissent. Mais ils cr\u00e9ent aussi une source potentielle de ventes forc\u00e9es si le cours des actions chute ou si les co\u00fbts de financement augmentent.<\/p>\n\n<ul>\n  <li><b>Strategy :<\/b> environ 848 000 BTC d\u00e9tenus<\/li>\n  <li><b>Strive :<\/b> plus de 36 800 BTC d\u00e9tenus<\/li>\n  <li><b>Dernier achat de Strive :<\/b> environ $100 millions<\/li>\n  <li><b>Tendance des fonds :<\/b> les retraits sur Ethereum ont d\u00e9pass\u00e9 les sorties sur Bitcoin<\/li>\n<\/ul>\n\n<h2>JPMorgan passe sur Ethereum<\/h2>\n\n<p>JPMorgan pr\u00e9voit d&rsquo;amener son jeton de d\u00e9p\u00f4t JPM Coin sur Ethereum pour les paiements et le r\u00e8glement institutionnels. Le service sera r\u00e9serv\u00e9 aux contreparties agr\u00e9\u00e9es, et non aux clients particuliers.<\/p>\n\n<p>L&rsquo;initiative compte, car JPMorgan place un produit de paiement \u00e9mis par une banque sur une blockchain publique. Les titres tokenis\u00e9s peuvent alors \u00eatre r\u00e9gl\u00e9s en m\u00eame temps que la jambe esp\u00e8ces d&rsquo;une transaction.<\/p>\n\n<p>Ethereum offre une liquidit\u00e9 \u00e9tablie, des outils de r\u00e8glement et un vaste \u00e9cosyst\u00e8me de tokenisation. Les banques ont donc besoin de moins de passerelles entre leurs syst\u00e8mes priv\u00e9s et l&rsquo;infrastructure des march\u00e9s publics.<\/p>\n\n<p>BlackRock \u00e9tudie l&rsquo;utilisation de fonds tokenis\u00e9s comme garantie pour des op\u00e9rations traditionnelles \u00e0 Wall Street. Les produits du Tr\u00e9sor tokenis\u00e9s attirent aussi une demande au-del\u00e0 des fronti\u00e8res am\u00e9ricaines.<\/p>\n\n<p>Environ 66,9 % des bons du Tr\u00e9sor am\u00e9ricain tokenis\u00e9s sont d\u00e9tenus hors des \u00c9tats-Unis. Ce chiffre sugg\u00e8re que les investisseurs \u00e9trangers pourraient devenir des utilisateurs majeurs des march\u00e9s blockchain libell\u00e9s en dollars.<\/p>\n\n<p>Les actions tokenis\u00e9es suivent toutefois un chemin plus chaotique. Neuf entreprises se sont oppos\u00e9es \u00e0 des offres li\u00e9es \u00e0 leurs titres, en invoquant des pr\u00e9occupations sur la propri\u00e9t\u00e9 et les op\u00e9rations sur titres.<\/p>\n\n<p>La blockchain peut acc\u00e9l\u00e9rer le r\u00e8glement, mais elle ne peut pas trancher la question de savoir qui d\u00e9tient le droit juridique. Les \u00e9metteurs veulent de la clart\u00e9 sur les droits de vote, les dividendes, les obligations d&rsquo;information et les responsabilit\u00e9s au regard du droit des valeurs mobili\u00e8res.<\/p>\n\n<h2>Les r\u00e9gulateurs resserrent le cadre<\/h2>\n\n<p>Le groupe charg\u00e9 des politiques publiques d&rsquo;Hyperliquid a exhort\u00e9 la Securities and Exchange Commission \u00e0 modifier cinq volets de son approche du march\u00e9 crypto. Cette demande traduit une impatience croissante face \u00e0 une r\u00e9glementation construite \u00e0 coups de poursuites.<\/p>\n\n<p>Les plateformes d&rsquo;\u00e9change et les protocoles d\u00e9centralis\u00e9s veulent des limites plus claires concernant les jetons, la structure du march\u00e9 et la protection des clients. Ces r\u00e8gles pourraient d\u00e9terminer quelles plateformes obtiendront l&rsquo;acc\u00e8s aux banques et aux capitaux institutionnels.<\/p>\n\n<p>L&rsquo;Europe avance plus vite gr\u00e2ce \u00e0 son cadre MiCA. L&rsquo;USDC a nettement gagn\u00e9 en importance en tant que jeton de monnaie \u00e9lectronique, ce qui renforce la position de Circle dans l&rsquo;ensemble du bloc.<\/p>\n\n<p>BingX, YouHodler et Openbank, filiale de Santander, ont \u00e9galement rejoint le registre MiCA. La conformit\u00e9 offre d\u00e9sormais un avantage commercial, au lieu de simplement alourdir les co\u00fbts juridiques.<\/p>\n\n<p>La Cor\u00e9e du Sud pourrait reporter son projet de fiscalit\u00e9 des cryptos apr\u00e8s des r\u00e9unions avec ses cinq plus grandes plateformes d&rsquo;\u00e9change. Les responsables politiques font face \u00e0 un probl\u00e8me familier : taxer un secteur dont les r\u00e8gles de march\u00e9 restent inachev\u00e9es.<\/p>\n\n<h2>XRP obtient un r\u00e9pit sur les flux<\/h2>\n\n<p>XRP a rebondi vers $1,31 apr\u00e8s la fin d&rsquo;une s\u00e9rie de 13 semaines de sorties sur les ETF. Les entr\u00e9es cumul\u00e9es dans les ETF au comptant sur XRP auraient d\u00e9pass\u00e9 $1,8 milliard.<\/p>\n\n<p>Ce retournement donne \u00e0 XRP l&rsquo;un des r\u00e9cits institutionnels les plus solides en dehors de Bitcoin et d&rsquo;Ethereum. Toutefois, les flux des fonds ne peuvent \u00e0 eux seuls absorber tous les vendeurs du march\u00e9.<\/p>\n\n<p>Les d\u00e9tenteurs de long terme, les plateformes d&rsquo;\u00e9change et les teneurs de march\u00e9 conservent encore des stocks importants. Les traders surveilleront si les nouvelles allocations se maintiennent apr\u00e8s la premi\u00e8re vague d&rsquo;achats port\u00e9e par les gros titres.<\/p>\n\n<p>Sur le XRP Ledger, les validateurs sont sur le point d&rsquo;approuver un correctif. Le lancement pr\u00e9vu d&rsquo;une offre de pr\u00eat reste en suspens, tandis que Ripple continue de promouvoir la finance d\u00e9centralis\u00e9e aupr\u00e8s des particuliers.<\/p>\n\n<p>David Schwartz a \u00e9galement mis en avant les transactions automatis\u00e9es et les agents d&rsquo;IA comme usages potentiels. Les paiements peuvent ouvrir la porte, mais la liquidit\u00e9 programmable repr\u00e9sente une cible commerciale bien plus vaste.<\/p>\n\n<h2>La s\u00e9curit\u00e9 reste le maillon faible<\/h2>\n\n<p>Qubic a mis \u00e0 l&rsquo;arr\u00eat sa blockchain de couche 1 apr\u00e8s qu&rsquo;un attaquant a vid\u00e9 1 404 portefeuilles. Ceux-ci contenaient environ 2 940 milliards de QU, d&rsquo;une valeur proche de $1,4 million.<\/p>\n\n<p>Le projet a attribu\u00e9 l&rsquo;incident \u00e0 une g\u00e9n\u00e9ration trop faible des seeds de portefeuille, et non \u00e0 une d\u00e9faillance du consensus. Environ 87,1 % des fonds vol\u00e9s restaient gel\u00e9s, tandis qu&rsquo;une plateforme d&rsquo;\u00e9change en a bloqu\u00e9 une autre partie.<\/p>\n\n<p>L&rsquo;\u00e9pisode montre o\u00f9 commencent de nombreuses pertes dans la crypto. Les attaquants ciblent souvent les cl\u00e9s et les logiciels de portefeuille, car ils n&rsquo;ont pas besoin de vaincre la blockchain elle-m\u00eame.<\/p>\n\n<p>Cysic a de son c\u00f4t\u00e9 suspendu son pont inter-cha\u00eenes apr\u00e8s qu&rsquo;un attaquant a \u00e9mis 10 millions de jetons CYS non autoris\u00e9s sur BNB Smart Chain. L&rsquo;attaquant en a vendu et d\u00e9plac\u00e9 une part importante avant le d\u00e9but de la mise sur liste noire.<\/p>\n\n<p>Les ponts restent particuli\u00e8rement expos\u00e9s, car ils combinent liquidit\u00e9, conservation et messagerie entre r\u00e9seaux. Chaque connexion suppl\u00e9mentaire peut ouvrir une nouvelle voie d&rsquo;acc\u00e8s aux r\u00e9serves d&rsquo;un protocole.<\/p>\n\n<h2>Ce que surveillent les traders<\/h2>\n\n<ol>\n  <li>La mise \u00e0 niveau du testnet Hoodi d&rsquo;Ethereum et tout signe d&rsquo;un calendrier pour le mainnet.<\/li>\n  <li>Les flux des ETF Bitcoin apr\u00e8s la derni\u00e8re s\u00e9rie de retraits sur les produits.<\/li>\n  <li>La capacit\u00e9 des entreprises acheteuses de Bitcoin \u00e0 financer leurs achats en p\u00e9riode de faiblesse du march\u00e9.<\/li>\n  <li>Les entr\u00e9es dans les fonds XRP apr\u00e8s la fin de sa s\u00e9rie de 13 semaines de sorties.<\/li>\n  <li>La r\u00e9action de BNB apr\u00e8s une destruction de jetons d&rsquo;une valeur d&rsquo;environ $1,2 milliard.<\/li>\n<\/ol>\n\n<p>La destruction de jetons de BNB Chain a relanc\u00e9 les sp\u00e9culations sur un retour vers $750. Une offre r\u00e9duite peut am\u00e9liorer le sentiment, mais l&rsquo;activit\u00e9 du r\u00e9seau et l&rsquo;app\u00e9tit pour le risque continueront de fixer le prix.<\/p>\n\n<p>Le Bitcoin affronte cette semaine une version plus large de ce test. La demande pour les ETF, les anticipations de taux d&rsquo;int\u00e9r\u00eat, les achats des entreprises et les donn\u00e9es macro\u00e9conomiques d\u00e9termineront si le rebond prend de l&rsquo;ampleur.<\/p>\n\n<p>La crypto attire de l&rsquo;argent s\u00e9rieux vers les march\u00e9s publics et les syst\u00e8mes de paiement. Cet argent apporte un contr\u00f4le plus strict, des litiges juridiques plus difficiles et peu de patience face \u00e0 une s\u00e9curit\u00e9 d\u00e9faillante.<\/p>\n\n\n<h2 class=\"wp-block-heading volity-related-coverage\">Articles connexes sur Volity<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/volity.io\/fr\/crypto\/how-to-avoid-crypto-scams\/\">Comment \u00e9viter les arnaques crypto : liste de s\u00e9curit\u00e9 pour d\u00e9butants<\/a><\/li>\n<li><a href=\"https:\/\/volity.io\/fr\/trading-platforms-fr\/how-to-choose-a-trading-platform\/\">Comment choisir une plateforme de trading : une liste de v\u00e9rification en 10 points<\/a><\/li>\n<li><a href=\"https:\/\/volity.io\/fr\/trader\/demo-vs-live-trading-account\/\">D\u00e9mo vs compte de trading r\u00e9el : une liste de v\u00e9rification en 7 \u00e9tapes avant de passer en direct<\/a><\/li>\n<li><a href=\"https:\/\/volity.io\/fr\/trader\/position-sizing-risk-per-trade\/\">Comment dimensionner un trade : taille de position et risque par trade pour d\u00e9butants<\/a><\/li>\n<li><a href=\"https:\/\/volity.io\/fr\/trader\/risk-reward-ratio-explained\/\">Ratio risque-rendement expliqu\u00e9 : comment le d\u00e9finir et pourquoi il compte<\/a><\/li>\n<li><a href=\"https:\/\/volity.io\/fr\/actions\/etf-vs-index-fund\/\">ETF vs fonds indiciel : la diff\u00e9rence et lequel choisir<\/a><\/li>\n<\/ul>\n\n\n<script type=\"application\/ld+json\">{\"@context\":\"https:\/\/schema.org\",\"@type\":\"NewsArticle\",\"headline\":\"March\u00e9 crypto : Wall Street, r\u00e9gulation et risques de s\u00e9curit\u00e9\",\"datePublished\":\"2026-10-19T13:46:56+00:00\",\"dateModified\":\"2026-10-19T13:46:56+00:00\",\"author\":{\"@type\":\"Person\",\"name\":\"Rédaction Volity\",\"url\":\"https:\/\/volity.io\/\"},\"publisher\":{\"@type\":\"Organization\",\"name\":\"Volity\",\"url\":\"https:\/\/volity.io\/\",\"logo\":{\"@type\":\"ImageObject\",\"url\":\"https:\/\/volity.io\/wp-content\/uploads\/2026\/03\/logo.webp\",\"width\":512,\"height\":512}},\"image\":\"https:\/\/volity.io\/wp-content\/uploads\/2026\/10\/CryptoMarketRisks.webp\",\"mainEntityOfPage\":{\"@type\":\"WebPage\",\"@id\":\"https:\/\/volity.io\/fr\/actualites\/crypto-market-wall-street\/\"},\"articleSection\":\"News\",\"inLanguage\":\"fr\"}<\/script>\n","protected":false},"excerpt":{"rendered":"<p>Le nouveau champ de bataille des cryptos : Wall Street, la r\u00e9gulation et la faille de s\u00e9curit\u00e9 Lundi 19 octobre 2026. La [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":54777,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"custom_schema":"","footnotes":""},"categories":[223],"tags":[],"class_list":["post-54799","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v28.3 (Yoast SEO v28.7) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>March\u00e9 crypto : Wall Street, r\u00e9gulation et risques de s\u00e9curit\u00e9 | Volity<\/title>\n<meta name=\"description\" content=\"JPMorgan veut porter JPM Coin sur Ethereum, Strategy d\u00e9tient environ 848 000 BTC et Qubic a stopp\u00e9 sa blockchain apr\u00e8s le pillage de 1 404 wallets.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" 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