{"id":176963,"date":"2025-12-18T08:22:53","date_gmt":"2025-12-18T08:22:53","guid":{"rendered":"https:\/\/cryptonews.com\/fr\/?p=176963"},"modified":"2025-12-18T08:11:01","modified_gmt":"2025-12-18T08:11:01","slug":"actualite-crypto-altcoins-bitcoin-ethereum","status":"publish","type":"post","link":"https:\/\/cryptonews.com\/fr\/news\/actualite-crypto-altcoins-bitcoin-ethereum\/","title":{"rendered":"LIVE : Actualit\u00e9 crypto, pr\u00e9dictions altcoins, actualit\u00e9 bitcoin et ethereum du 18 d\u00e9cembre"},"content":{"rendered":"<p class=\"wp-block-paragraph\">Le march\u00e9 crypto reste sous pression. Le <a href=\"https:\/\/cryptonews.com\/fr\/news\/metamask-bitcoin-wallet-multichaine-jeton-mask\/\">bitcoin<\/a> s\u2019\u00e9change autour de 86 705 $, apr\u00e8s un pic intraday proche des 90 000 $ et un creux vers les 85 000 $. Ethereum recule davantage, \u00e0 2 835 $ (environ -3,7 % sur 24 h), signe d\u2019un app\u00e9tit pour le risque qui est toujours fragile du c\u00f4t\u00e9 des investisseurs. Quant \u00e0 la capitalisation totale, celle-ci oscille autour de 3 000 milliards de dollars, une <strong>baisse aliment\u00e9e par un Fear &#038; Greed autour des 17 points.<\/strong><\/p><p class=\"wp-block-paragraph\">C\u00f4t\u00e9 catalyseurs, les flux sont \u00e0 demi-teinte, les ETFs BTC spot enregistrent des journ\u00e9es dans le vert puis dans le rouge, l&rsquo;\u00e9lan reste par ailleurs contrari\u00e9 par le climat r\u00e9glementaire am\u00e9ricain, certains projets de loi \u00e9tant repouss\u00e9s \u00e0 2026 au sujet du Web 3. En toile de fond, la corr\u00e9lation avec les actions se renforce, ce qui amplifie la volatilit\u00e9, et <strong>l&rsquo;importance des donn\u00e9es macro et de la FED<\/strong> pour que l&rsquo;ann\u00e9e 2026 puisse d\u00e9marrer dans de bonnes conditions.<\/p><p class=\"wp-block-paragraph\">Pour les altcoins, l\u2019heure est aux sc\u00e9narios : <a href=\"https:\/\/cryptonews.com\/fr\/news\/xrp-chute-pivot-technique-vers-1-dollar-niveaux-a-surveiller-bitcoin-hyper\/\">XRP \u00e9volue autour de 1,86\u20131,90 $<\/a>, <a href=\"https:\/\/cryptonews.com\/fr\/news\/solana-attaque-ddos-sol-credibilite-hausse-2026\/\">Solana<\/a> pr\u00e8s de 124 $ et BNB autour de 844 $. Si le BTC d\u00e9fend la zone 85 000 $, une <strong>rotation tactique pourrait b\u00e9n\u00e9ficier aux grandes capitalisations<\/strong> avec des flux entrants de liquidit\u00e9s alors qu&rsquo;en cas de chute, le march\u00e9 vise plut\u00f4t la zone 80 000\u201382 000 $, avec un rebond conditionn\u00e9 \u00e0 l\u2019am\u00e9lioration du contexte macro. Faisons le point en LIVE et restez \u00e0 nos c\u00f4t\u00e9s pour en savoir plus sur la situation actuelle.<\/p><hr class=\"wp-block-separator has-alpha-channel-opacity\"><p class=\"wp-block-paragraph\">Pour aller plus loin sur le sujet : <\/p><ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/cryptonews.com\/fr\/news\/altcoins-2026-pepenode-hype-plume-network\/\">Gagner gros en 2026 sur les cryptos ? 3 altcoins \u00e0 acheter maintenant pour votre wallet<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/cryptonews.com\/fr\/news\/bitcoin-chute-layer2-bitcoin-hyper-btc-baisse\/\">Bitcoin va marquer une nouvelle chute ? Le L2 Bitcoin Hyper pourrait tout changer pour BTC \u00e0 long terme<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/cryptonews.com\/fr\/news\/burn-hype-13-pourcent-1-milliard-hyperliquid-hausse\/\">Burn de 13 % des HYPE pour 1 milliard de dollars : une hausse est imminente ?<\/a><\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"<p>Le march\u00e9 crypto reste sous pression. Le bitcoin s\u2019\u00e9change autour de 86 705 $, apr\u00e8s un pic intraday proche des 90 000 $ et un creux vers les 85 000 $. Ethereum recule davantage, \u00e0 2 835 $ (environ -3,7 % sur 24 h), signe d\u2019un app\u00e9tit pour le risque qui est toujours fragile du [&hellip;]<\/p>\n","protected":false},"author":594,"featured_media":176964,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[8,6,9,1],"tags":[],"editors":[2550],"sponsored_companies":[],"class_list":["post-176963","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-altcoin-news","category-bitcoin-news","category-blockchain-news","category-news","editors-jurgen-hoffman"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>LIVE : Actualit\u00e9 crypto, pr\u00e9dictions altcoins, actualit\u00e9 bitcoin et ethereum du 18 d\u00e9cembre<\/title>\n<meta name=\"description\" content=\"Le march\u00e9 crypto se retrouve dans une position baissi\u00e8re. Parviendra-t-il \u00e0 rebondir et s&#039;inscrire dans le vert apr\u00e8s No\u00ebl ?\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/cryptonews.com\/fr\/news\/actualite-crypto-altcoins-bitcoin-ethereum\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"LIVE : Actualit\u00e9 crypto, pr\u00e9dictions altcoins, actualit\u00e9 bitcoin et ethereum du 18 d\u00e9cembre\" \/>\n<meta property=\"og:description\" content=\"Le march\u00e9 crypto se retrouve dans une position baissi\u00e8re. Parviendra-t-il \u00e0 rebondir et s&#039;inscrire dans le vert apr\u00e8s No\u00ebl ?\" \/>\n<meta property=\"og:url\" content=\"https:\/\/cryptonews.com\/fr\/news\/actualite-crypto-altcoins-bitcoin-ethereum\/\" \/>\n<meta property=\"og:site_name\" content=\"Cryptonews France\" \/>\n<meta property=\"article:published_time\" content=\"2025-12-18T08:22:53+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/cimg.co\/wp-content\/uploads\/sites\/3\/2025\/12\/18081402\/1766045641-1b9b625d-f14e-4b5e-93ed-57244a81d653.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1536\" \/>\n\t<meta property=\"og:image:height\" content=\"1024\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:title\" content=\"LIVE : Actualit\u00e9 crypto, pr\u00e9dictions altcoins, actualit\u00e9 bitcoin et ethereum du 18 d\u00e9cembre\" \/>\n<meta name=\"twitter:description\" content=\"Le march\u00e9 crypto se retrouve dans une position baissi\u00e8re. Parviendra-t-il \u00e0 rebondir et s&#039;inscrire dans le vert apr\u00e8s No\u00ebl ?\" \/>\n<meta name=\"twitter:image\" content=\"https:\/\/cimg.co\/wp-content\/uploads\/sites\/3\/2025\/12\/18081402\/1766045641-1b9b625d-f14e-4b5e-93ed-57244a81d653.jpg\" \/>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"LIVE : Actualit\u00e9 crypto, pr\u00e9dictions altcoins, actualit\u00e9 bitcoin et ethereum du 18 d\u00e9cembre","description":"Le march\u00e9 crypto se retrouve dans une position baissi\u00e8re. Parviendra-t-il \u00e0 rebondir et s'inscrire dans le vert apr\u00e8s No\u00ebl ?","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/cryptonews.com\/fr\/news\/actualite-crypto-altcoins-bitcoin-ethereum\/","og_locale":"fr_FR","og_type":"article","og_title":"LIVE : Actualit\u00e9 crypto, pr\u00e9dictions altcoins, actualit\u00e9 bitcoin et ethereum du 18 d\u00e9cembre","og_description":"Le march\u00e9 crypto se retrouve dans une position baissi\u00e8re. Parviendra-t-il \u00e0 rebondir et s'inscrire dans le vert apr\u00e8s No\u00ebl ?","og_url":"https:\/\/cryptonews.com\/fr\/news\/actualite-crypto-altcoins-bitcoin-ethereum\/","og_site_name":"Cryptonews France","article_published_time":"2025-12-18T08:22:53+00:00","og_image":[{"width":1536,"height":1024,"url":"https:\/\/cimg.co\/wp-content\/uploads\/sites\/3\/2025\/12\/18081402\/1766045641-1b9b625d-f14e-4b5e-93ed-57244a81d653.jpg","type":"image\/jpeg"}],"twitter_card":"summary_large_image","twitter_title":"LIVE : Actualit\u00e9 crypto, pr\u00e9dictions altcoins, actualit\u00e9 bitcoin et ethereum du 18 d\u00e9cembre","twitter_description":"Le march\u00e9 crypto se retrouve dans une position baissi\u00e8re. Parviendra-t-il \u00e0 rebondir et s'inscrire dans le vert apr\u00e8s No\u00ebl ?","twitter_image":"https:\/\/cimg.co\/wp-content\/uploads\/sites\/3\/2025\/12\/18081402\/1766045641-1b9b625d-f14e-4b5e-93ed-57244a81d653.jpg","schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"NewsArticle","@id":"https:\/\/cryptonews.com\/fr\/news\/actualite-crypto-altcoins-bitcoin-ethereum\/#article","isPartOf":{"@id":"https:\/\/cryptonews.com\/fr\/news\/actualite-crypto-altcoins-bitcoin-ethereum\/"},"author":{"name":"J\u00fcrgen Hoffmann","@id":"https:\/\/cryptonews.com\/fr\/#\/schema\/person\/6fc7542badc22feb019ff5435cd3a0f9"},"headline":"LIVE : Actualit\u00e9 crypto, pr\u00e9dictions altcoins, actualit\u00e9 bitcoin et ethereum du 18 d\u00e9cembre","datePublished":"2025-12-18T08:22:53+00:00","mainEntityOfPage":{"@id":"https:\/\/cryptonews.com\/fr\/news\/actualite-crypto-altcoins-bitcoin-ethereum\/"},"wordCount":304,"publisher":{"@id":"https:\/\/cryptonews.com\/fr\/#organization"},"image":{"@id":"https:\/\/cryptonews.com\/fr\/news\/actualite-crypto-altcoins-bitcoin-ethereum\/#primaryimage"},"thumbnailUrl":"https:\/\/cimg.co\/wp-content\/uploads\/sites\/3\/2025\/12\/18081402\/1766045641-1b9b625d-f14e-4b5e-93ed-57244a81d653.jpg","articleSection":["Actualit\u00e9s Altcoin","Actualit\u00e9s Bitcoin","Actualit\u00e9s Blockchain","News"],"inLanguage":"fr-FR","copyrightYear":"2025","copyrightHolder":{"@id":"https:\/\/cryptonews.com\/#organization"}},{"@type":"WebPage","@id":"https:\/\/cryptonews.com\/fr\/news\/actualite-crypto-altcoins-bitcoin-ethereum\/","url":"https:\/\/cryptonews.com\/fr\/news\/actualite-crypto-altcoins-bitcoin-ethereum\/","name":"LIVE : Actualit\u00e9 crypto, pr\u00e9dictions altcoins, actualit\u00e9 bitcoin et ethereum du 18 d\u00e9cembre","isPartOf":{"@id":"https:\/\/cryptonews.com\/fr\/#website"},"primaryImageOfPage":{"@id":"https:\/\/cryptonews.com\/fr\/news\/actualite-crypto-altcoins-bitcoin-ethereum\/#primaryimage"},"image":{"@id":"https:\/\/cryptonews.com\/fr\/news\/actualite-crypto-altcoins-bitcoin-ethereum\/#primaryimage"},"thumbnailUrl":"https:\/\/cimg.co\/wp-content\/uploads\/sites\/3\/2025\/12\/18081402\/1766045641-1b9b625d-f14e-4b5e-93ed-57244a81d653.jpg","datePublished":"2025-12-18T08:22:53+00:00","description":"Le march\u00e9 crypto se retrouve dans une position baissi\u00e8re. Parviendra-t-il \u00e0 rebondir et s'inscrire dans le vert apr\u00e8s No\u00ebl ?","breadcrumb":{"@id":"https:\/\/cryptonews.com\/fr\/news\/actualite-crypto-altcoins-bitcoin-ethereum\/#breadcrumb"},"inLanguage":"fr-FR","potentialAction":[{"@type":"ReadAction","target":["https:\/\/cryptonews.com\/fr\/news\/actualite-crypto-altcoins-bitcoin-ethereum\/"]}],"author":[]},{"@type":"ImageObject","inLanguage":"fr-FR","@id":"https:\/\/cryptonews.com\/fr\/news\/actualite-crypto-altcoins-bitcoin-ethereum\/#primaryimage","url":"https:\/\/cimg.co\/wp-content\/uploads\/sites\/3\/2025\/12\/18081402\/1766045641-1b9b625d-f14e-4b5e-93ed-57244a81d653.jpg","contentUrl":"https:\/\/cimg.co\/wp-content\/uploads\/sites\/3\/2025\/12\/18081402\/1766045641-1b9b625d-f14e-4b5e-93ed-57244a81d653.jpg","width":1536,"height":1024},{"@type":"BreadcrumbList","@id":"https:\/\/cryptonews.com\/fr\/news\/actualite-crypto-altcoins-bitcoin-ethereum\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/cryptonews.com\/fr\/"},{"@type":"ListItem","position":2,"name":"LIVE : Actualit\u00e9 crypto, pr\u00e9dictions altcoins, actualit\u00e9 bitcoin et ethereum du 18 d\u00e9cembre"}]},{"@type":"WebSite","@id":"https:\/\/cryptonews.com\/fr\/#website","url":"https:\/\/cryptonews.com\/fr\/","name":"Cryptonews","description":"","publisher":{"@id":"https:\/\/cryptonews.com\/fr\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/cryptonews.com\/fr\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"fr-FR"},{"@type":"Organization","@id":"https:\/\/cryptonews.com\/fr\/#organization","name":"Cryptonews France","url":"https:\/\/cryptonews.com\/fr\/","logo":{"@type":"ImageObject","inLanguage":"fr-FR","@id":"https:\/\/cryptonews.com\/fr\/#\/schema\/logo\/image\/","url":"https:\/\/cryptonews.com\/wp-content\/uploads\/sites\/3\/2023\/09\/4.jpg","contentUrl":"https:\/\/cryptonews.com\/wp-content\/uploads\/sites\/3\/2023\/09\/4.jpg","width":1669,"height":874,"caption":"Cryptonews France"},"image":{"@id":"https:\/\/cryptonews.com\/fr\/#\/schema\/logo\/image\/"}}]}},"_links":{"self":[{"href":"https:\/\/cryptonews.com\/fr\/wp-json\/wp\/v2\/posts\/176963","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/cryptonews.com\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/cryptonews.com\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/cryptonews.com\/fr\/wp-json\/wp\/v2\/users\/594"}],"replies":[{"embeddable":true,"href":"https:\/\/cryptonews.com\/fr\/wp-json\/wp\/v2\/comments?post=176963"}],"version-history":[{"count":1,"href":"https:\/\/cryptonews.com\/fr\/wp-json\/wp\/v2\/posts\/176963\/revisions"}],"predecessor-version":[{"id":176965,"href":"https:\/\/cryptonews.com\/fr\/wp-json\/wp\/v2\/posts\/176963\/revisions\/176965"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/cryptonews.com\/fr\/wp-json\/wp\/v2\/media\/176964"}],"wp:attachment":[{"href":"https:\/\/cryptonews.com\/fr\/wp-json\/wp\/v2\/media?parent=176963"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cryptonews.com\/fr\/wp-json\/wp\/v2\/categories?post=176963"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cryptonews.com\/fr\/wp-json\/wp\/v2\/tags?post=176963"},{"taxonomy":"editors","embeddable":true,"href":"https:\/\/cryptonews.com\/fr\/wp-json\/wp\/v2\/editors?post=176963"},{"taxonomy":"sponsored_companies","embeddable":true,"href":"https:\/\/cryptonews.com\/fr\/wp-json\/wp\/v2\/sponsored_companies?post=176963"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}