{"id":53201,"date":"2026-09-08T13:48:53","date_gmt":"2026-09-08T13:48:53","guid":{"rendered":"https:\/\/volity.io\/blog\/bitcoin-78000-support-test-2\/"},"modified":"2026-09-11T08:03:04","modified_gmt":"2026-09-11T08:03:04","slug":"bitcoin-78000-support-test","status":"publish","type":"post","link":"https:\/\/volity.io\/fr\/actualites\/bitcoin-78000-support-test\/","title":{"rendered":"Cours du Bitcoin aujourd&rsquo;hui : le support des $78 000 de nouveau test\u00e9"},"content":{"rendered":"<h2>March\u00e9s crypto au quotidien : cartes, r\u00e9pression et un plancher fragile pour le bitcoin<\/h2>\n\n<p>Le bitcoin est pass\u00e9 sous les $79 000 le mardi 8 septembre, alors que le support proche de $78 000 subissait une forte pression. Dans le m\u00eame temps, l&rsquo;activit\u00e9 de cartes stablecoin de Visa a poursuivi son expansion, offrant \u00e0 la crypto une nouvelle porte d&rsquo;entr\u00e9e vers les d\u00e9penses du quotidien.<\/p>\n\n<p>Les autorit\u00e9s europ\u00e9ennes ont aussi alourdi le prix d&rsquo;une conformit\u00e9 d\u00e9faillante. Pour les traders, la question imm\u00e9diate est simple : le bitcoin va-t-il tenir, ou l&rsquo;effet de levier va-t-il transformer un repli modeste en purge plus brutale ?<\/p>\n\n<h2>Le bitcoin teste une zone de support encombr\u00e9e<\/h2>\n\n<p>La fourchette de $78 000 \u00e0 $78 200 du bitcoin est devenue la principale ligne de d\u00e9fense du march\u00e9. Pourtant, les donn\u00e9es sur les d\u00e9riv\u00e9s indiquent qu&rsquo;un risque de liquidation important se situe plut\u00f4t pr\u00e8s de $76 000.<\/p>\n\n<p>Une cassure sous $78 000 pourrait attirer les vendeurs de court terme vers $77 000. D\u00e8s lors, un franchissement net de $76 000 compterait bien davantage qu&rsquo;une simple oscillation intrajournali\u00e8re.<\/p>\n\n<p>Pour de nombreux investisseurs, le sc\u00e9nario de long terme du bitcoin reste intact. Mais un positionnement encombr\u00e9 peut rendre brutale m\u00eame une correction saine.<\/p>\n\n<p>Les liquidations ont tendance \u00e0 s&rsquo;auto-alimenter lorsque les volumes sont faibles. \u00c0 mesure que les prix baissent, les positions longues \u00e0 effet de levier se ferment automatiquement, ce qui ajoute des ordres de vente au carnet.<\/p>\n\n<p>Les traders qui utilisent l&rsquo;effet de levier devraient v\u00e9rifier leur prix de liquidation avant que le march\u00e9 ne s&rsquo;en charge. Les ordres \u00e0 cours limit\u00e9 peuvent aussi offrir une entr\u00e9e moins co\u00fbteuse dans une fourchette volatile.<\/p>\n\n<h3>Niveaux \u00e0 surveiller<\/h3>\n\n<ul>\n  <li><b>$80 000<\/b> &#8211; premi\u00e8re zone o\u00f9 les acheteurs de momentum pourraient reprendre la main.<\/li>\n  <li><b>$78 000 \u00e0 $78 200<\/b> &#8211; zone de support imm\u00e9diate sous pression.<\/li>\n  <li><b>$77 000<\/b> &#8211; premier objectif \u00e0 la baisse si le support c\u00e8de.<\/li>\n  <li><b>$76 000<\/b> &#8211; zone charg\u00e9e en liquidations, avec un risque de cascade plus \u00e9lev\u00e9.<\/li>\n<\/ul>\n\n<h2>Visa rend les stablecoins plus ordinaires<\/h2>\n\n<p>Loin des soubresauts du cours du bitcoin, Visa poursuit plus discr\u00e8tement son d\u00e9veloppement dans les paiements. Le groupe compte d\u00e9sormais plus de 160 programmes de cartes li\u00e9es aux stablecoins actifs dans le monde.<\/p>\n\n<p>Le volume de paiements sur ces cartes a progress\u00e9 de pr\u00e8s de 200 % sur un an au cours du deuxi\u00e8me trimestre de l&rsquo;exercice 2026 de Visa. Cette croissance ne rend pas les stablecoins sans risque. Elle montre toutefois que les \u00e9metteurs de cartes per\u00e7oivent une demande qui d\u00e9passe le trading sp\u00e9culatif.<\/p>\n\n<p>La plupart des programmes permettent aux clients de d\u00e9penser des USDC ou des jetons similaires en point de vente. Les commer\u00e7ants, eux, re\u00e7oivent une monnaie classique gr\u00e2ce \u00e0 des syst\u00e8mes de conversion et de r\u00e8glement qui fonctionnent en coulisses.<\/p>\n\n<p>Ce dispositif compte, car il supprime des frictions pour les commer\u00e7ants. Ils n&rsquo;ont besoin ni de d\u00e9tenir de crypto, ni de g\u00e9rer des cl\u00e9s priv\u00e9es, ni de modifier leurs syst\u00e8mes comptables.<\/p>\n\n<p>Les fintechs utilisent de plus en plus les stablecoins comme outils de fonds de roulement et de r\u00e8glement. Leur valeur pourrait donc reposer moins sur l&rsquo;enthousiasme des particuliers que sur leur utilit\u00e9 pour les paiements.<\/p>\n\n<p>Pour les investisseurs, le changement important est structurel. Les stablecoins quittent les \u00e9crans de trading pour gagner les portefeuilles, les cartes et les op\u00e9rations de tr\u00e9sorerie.<\/p>\n\n<h2>Les frais peuvent effacer discr\u00e8tement un avantage de trading<\/h2>\n\n<p>Les frais des plateformes d&rsquo;\u00e9change restent l&rsquo;un des risques les moins glamour de la crypto. Ils peuvent pourtant d\u00e9terminer si une strat\u00e9gie active reste rentable une fois les co\u00fbts d\u00e9duits.<\/p>\n\n<p>Sur les grandes plateformes centralis\u00e9es, les frais maker de base au comptant vont de z\u00e9ro \u00e0 environ 0,60 %. Les frais taker vont d&rsquo;environ 0,04 % \u00e0 1,20 %.<\/p>\n\n<p>Un ordre maker apporte de la liquidit\u00e9, g\u00e9n\u00e9ralement via un ordre \u00e0 cours limit\u00e9 qui attend dans le carnet. \u00c0 l&rsquo;inverse, un ordre taker est ex\u00e9cut\u00e9 imm\u00e9diatement et retire de la liquidit\u00e9 disponible.<\/p>\n\n<p>Les plateformes r\u00e9compensent souvent les makers par des frais plus bas, car ils am\u00e9liorent la profondeur du march\u00e9. Les traders actifs devraient donc examiner les grilles tarifaires d&rsquo;aussi pr\u00e8s que les figures graphiques.<\/p>\n\n<ul>\n  <li><b>MEXC<\/b> propose des frais maker nuls sur certains produits au comptant et sur les contrats \u00e0 terme USDT.<\/li>\n  <li><b>Coinbase Advanced<\/b> peut facturer environ 0,60 % de frais maker et 1,20 % de frais taker pour les volumes les plus faibles.<\/li>\n  <li><b>Les strat\u00e9gies de grid trading<\/b> subissent une pression particuli\u00e8re, car les ex\u00e9cutions r\u00e9p\u00e9t\u00e9es amplifient les petits \u00e9carts de frais.<\/li>\n  <li><b>Les swing traders<\/b> peuvent souvent r\u00e9duire leurs co\u00fbts en \u00e9chelonnant leurs entr\u00e9es avec des ordres \u00e0 cours limit\u00e9.<\/li>\n<\/ul>\n\n<p>Dans la fourchette actuelle du bitcoin, de $76 000 \u00e0 $80 000, les ordres au march\u00e9 pass\u00e9s dans la pr\u00e9cipitation peuvent co\u00fbter cher. Un ordre \u00e0 cours limit\u00e9 comporte toutefois son propre risque : il peut ne jamais \u00eatre ex\u00e9cut\u00e9.<\/p>\n\n<h2>L&rsquo;Europe passe des r\u00e8gles \u00e0 leur application<\/h2>\n\n<p>La r\u00e9glementation europ\u00e9enne de la crypto devient plus concr\u00e8te et moins th\u00e9orique. L&rsquo;Italie, la Su\u00e8de, la France et l&rsquo;Allemagne illustrent chacune une facette diff\u00e9rente de cette \u00e9volution.<\/p>\n\n<p>La banque centrale italienne exige des contr\u00f4les plus stricts sur les transferts de crypto. L&rsquo;accent porte notamment sur les contr\u00f4les anti-blanchiment, dans les canaux avec conservation des actifs comme dans ceux sans conservation.<\/p>\n\n<p>Dans le m\u00eame temps, l&rsquo;administration fiscale su\u00e9doise a ordonn\u00e9 \u00e0 six entreprises crypto de payer $56 millions d&rsquo;imp\u00f4ts suppl\u00e9mentaires. Le message est clair : les autorit\u00e9s traitent de plus en plus l&rsquo;activit\u00e9 crypto comme n&rsquo;importe quelle autre activit\u00e9 financi\u00e8re imposable.<\/p>\n\n<p>La France serait confront\u00e9e \u00e0 un test de d\u00e9claration fiscale crypto portant sur $9,4 milliards, les autorit\u00e9s cherchant \u00e0 rapprocher l&rsquo;activit\u00e9 des d\u00e9clarations. En Allemagne, le d\u00e9bat sur la fiscalit\u00e9 du bitcoin s&rsquo;est aussi intensifi\u00e9 apr\u00e8s le r\u00e9sultat \u00e9lectoral de l&rsquo;AfD.<\/p>\n\n<p>Ces \u00e9volutions d\u00e9passent les gros titres locaux. Les plateformes pourraient donc supporter des co\u00fbts de d\u00e9claration plus \u00e9lev\u00e9s, tandis que les utilisateurs verront leurs transferts et leurs plus-values r\u00e9alis\u00e9es examin\u00e9s de plus pr\u00e8s.<\/p>\n\n<h2>Entreprises et banques privil\u00e9gient une exposition prudente<\/h2>\n\n<p>L&rsquo;accumulation par les entreprises se poursuit, m\u00eame si elle reste s\u00e9lective. Boyaa Interactive a ajout\u00e9 205 bitcoins, ce qui porte ses avoirs d\u00e9clar\u00e9s \u00e0 4 316 BTC.<\/p>\n\n<p>Cet achat conforte l&rsquo;argument bien connu du bitcoin comme actif de tr\u00e9sorerie. La plupart des entreprises pr\u00e9f\u00e8rent toutefois encore des allocations modestes ou une exposition indirecte.<\/p>\n\n<p>Les banques br\u00e9siliennes proposent des services crypto sans conserver d&rsquo;exposition directe \u00e0 la crypto dans leur propre bilan. Ce mod\u00e8le leur permet de percevoir des commissions sans supporter le risque de prix quotidien du bitcoin.<\/p>\n\n<p>Par ailleurs, HashKey Cloud a rejoint le lancement d&rsquo;un service de staking Bitcoin sur Stacks. En Suisse, le stablecoin CHFD est aussi entr\u00e9 en phase de test avec neuf institutions nationales.<\/p>\n\n<p>Aucun de ces projets ne fera bouger le bitcoin cet apr\u00e8s-midi. Ensemble, ils b\u00e2tissent pourtant les syst\u00e8mes de r\u00e8glement, de conservation et de conformit\u00e9 qu&rsquo;attendent les grands investisseurs.<\/p>\n\n<h2>Les r\u00e9seaux se pr\u00e9parent \u00e0 une utilisation plus intense<\/h2>\n\n<p>Les d\u00e9veloppeurs de protocoles regardent aussi au-del\u00e0 de la s\u00e9ance en cours. Ethereum vise un layer-1 r\u00e9sistant \u00e0 l&rsquo;informatique quantique d&rsquo;ici 2029, signe d&rsquo;une inqui\u00e9tude croissante face \u00e0 la puissance de calcul future.<\/p>\n\n<p>La mise \u00e0 jour v1 de Solana aurait tripl\u00e9 la capacit\u00e9 de transactions. De son c\u00f4t\u00e9, Cardano a publi\u00e9 le node 11.1.1 avant la mise \u00e0 niveau Dijkstra pr\u00e9vue.<\/p>\n\n<p>Les investisseurs ne devraient pas voir dans chaque nouvelle version logicielle un signal d&rsquo;achat. Des r\u00e9seaux plus rapides et moins congestionn\u00e9s l\u00e8vent n\u00e9anmoins un v\u00e9ritable obstacle \u00e0 l&rsquo;activit\u00e9 on-chain des institutionnels.<\/p>\n\n<h2>Ce que les traders doivent surveiller<\/h2>\n\n<ol>\n  <li><b>Le bitcoin \u00e0 $78 000<\/b> &#8211; une reprise solide pourrait stabiliser le sentiment, tandis qu&rsquo;une cassure augmenterait les chances d&rsquo;un mouvement vers $76 000.<\/li>\n  <li><b>L&rsquo;essor des paiements en stablecoins<\/b> &#8211; la croissance des cartes de Visa pourrait inciter les banques \u00e0 proposer des services crypto sans d\u00e9tenir d&rsquo;actifs volatils.<\/li>\n  <li><b>L&rsquo;application des r\u00e8gles en Europe<\/b> &#8211; les exigences fiscales et les contr\u00f4les des transferts pourraient servir de mod\u00e8les \u00e0 d&rsquo;autres juridictions.<\/li>\n  <li><b>Les co\u00fbts de trading<\/b> &#8211; les traders actifs devraient comparer les frais maker et taker avant que la volatilit\u00e9 ne fasse grimper le prix de l&rsquo;impatience.<\/li>\n<\/ol>\n\n<p>Les prochains milliers de dollars du bitcoin feront les gros titres. Mais l&rsquo;histoire la plus durable se joue sous les chandeliers : cartes, conservation, d\u00e9clarations fiscales et infrastructures de paiement deviennent de plus en plus difficiles \u00e0 ignorer.<\/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\":\"Cours du Bitcoin aujourd'hui : le support des $78 000 de nouveau test\u00e9\",\"datePublished\":\"2026-09-08T13:48:53+00:00\",\"dateModified\":\"2026-09-11T08:03:04+00:00\",\"author\":{\"@type\":\"Person\",\"name\":\"Alexander Bennett\",\"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\/09\/BitcoinSupportTest.webp\",\"mainEntityOfPage\":{\"@type\":\"WebPage\",\"@id\":\"https:\/\/volity.io\/fr\/actualites\/bitcoin-78000-support-test\/\"},\"articleSection\":\"News\",\"inLanguage\":\"fr\"}<\/script>\n","protected":false},"excerpt":{"rendered":"<p>March\u00e9s crypto au quotidien : cartes, r\u00e9pression et un plancher fragile pour le bitcoin Le bitcoin est pass\u00e9 sous les $79 000 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