{"id":119690,"date":"2026-04-28T13:32:00","date_gmt":"2026-04-28T12:32:00","guid":{"rendered":"https:\/\/investx.fr\/pt\/?p=119690"},"modified":"2026-04-28T12:39:30","modified_gmt":"2026-04-28T11:39:30","slug":"bitcoin-queda-razoes","status":"publish","type":"post","link":"https:\/\/investx.fr\/pt\/noticias-cripto\/bitcoin-queda-razoes\/","title":{"rendered":"Por que \u00e9 que o Bitcoin caiu? As 3 principais raz\u00f5es"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\" class=\"wp-block-heading\" id=\"mara-vira-a-pagina-venda-de-btc-e-transicao-para-a-ia\">MARA vira a p\u00e1gina: Venda de BTC e transi\u00e7\u00e3o para a IA<\/h2>\n\n\n\n<p>O caso da Marathon Digital Holdings ilustra melhor do que qualquer outro a transforma\u00e7\u00e3o em curso no setor da minera\u00e7\u00e3o. A MARA alargou a sua estrat\u00e9gia de gest\u00e3o cripto para 2026 ao autorizar a venda de todo o <a href=\"https:\/\/investx.fr\/pt\/aprender-criptomoedas\/cripto\/bitcoin\/\">Bitcoin<\/a> constante no seu balan\u00e7o, incluindo as reservas acumuladas, e n\u00e3o apenas a produ\u00e7\u00e3o minerada do ano. A 31 de dezembro de 2025, a empresa detinha <strong>53 822 BTC<\/strong> avaliados em cerca de <strong>4,7 mil milh\u00f5es de d\u00f3lares<\/strong>.<\/p>\n\n\n\n<p>Em fevereiro de 2026, a MARA assinou um acordo com a <strong>Starwood Digital Ventures<\/strong> para converter as suas instala\u00e7\u00f5es de minera\u00e7\u00e3o nos EUA em centros de dados dedicados \u00e0 IA e \u00e0 cloud empresarial. A parceria visa uma capacidade de <strong>1 gigawatt<\/strong> a curto prazo, com um objetivo de <strong>2,5 gigawatts<\/strong> a longo prazo. O an\u00fancio fez disparar as a\u00e7\u00f5es da MARA em <strong>+17 %<\/strong> no after-market.<\/p>\n\n\n\n<p>A MARA adquiriu tamb\u00e9m uma participa\u00e7\u00e3o de <strong>64 %<\/strong> na Exaion e posiciona as suas instala\u00e7\u00f5es energ\u00e9ticas como infraestrutura cr\u00edtica para os hyperscalers e empresas de IA, que t\u00eam dificuldade em garantir fontes de energia em grande escala.<\/p>\n\n\n\n<p>Esta evolu\u00e7\u00e3o n\u00e3o \u00e9 um caso isolado. A Core Scientific anunciou que prev\u00ea monetizar a quase totalidade das suas reservas de <a href=\"https:\/\/investx.fr\/pt\/investir-criptomoedas\/comprar\/bitcoin\/\">Bitcoin<\/a> em 2026, no \u00e2mbito de uma transi\u00e7\u00e3o semelhante para servi\u00e7os de IA e colocation de alta densidade. O movimento \u00e9 estrutural: o halving de abril de 2024 reduziu a metade as recompensas dos mineiros, comprimindo as margens ao ponto de for\u00e7ar uma diversifica\u00e7\u00e3o massiva. Para quem acompanha estas din\u00e2micas numa \u00f3tica de trading de criptomoedas, as vendas dos mineiros continuam a ser um dos indicadores de press\u00e3o vendedora mais acompanhados on-chain.<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-rich is-provider-twitter wp-block-embed-twitter\"><div class=\"wp-block-embed__wrapper\">\n<blockquote class=\"twitter-tweet\" data-width=\"500\" data-dnt=\"true\"><p lang=\"en\" dir=\"ltr\">MARA LAUNCHES BITCOIN-FOCUSED FOUNDATION AT BITCOIN 2026<a href=\"https:\/\/twitter.com\/MARA?ref_src=twsrc%5Etfw\">@MARA<\/a> Holdings (NASDAQ: MARA) unveiled the MARA Foundation today at the Bitcoin 2026 conference in Las Vegas. The initiative funds five areas: network security including quantum resistance research, open-source software,\u2026 <a href=\"https:\/\/t.co\/2sEMV0FIeH\">pic.twitter.com\/2sEMV0FIeH<\/a><\/p>&mdash; BSCN (@BSCNews) <a href=\"https:\/\/twitter.com\/BSCNews\/status\/2048821406440317165?ref_src=twsrc%5Etfw\">April 27, 2026<\/a><\/blockquote><script async src=\"https:\/\/platform.twitter.com\/widgets.js\" charset=\"utf-8\"><\/script>\n<\/div><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" class=\"wp-block-heading\" id=\"a-mara-foundation-o-lancamento-que-muda-a-analise-do-caso\">A MARA Foundation: o lan\u00e7amento que muda a an\u00e1lise do caso<\/h2>\n\n\n\n<p>A 27 de abril de 2026, em plena confer\u00eancia Bitcoin em Las Vegas, Fred Thiel anunciou a cria\u00e7\u00e3o da <strong>MARA Foundation<\/strong>, uma iniciativa que reposiciona o grupo muito al\u00e9m da simples minera\u00e7\u00e3o. A funda\u00e7\u00e3o concentra-se em cinco eixos: a seguran\u00e7a a longo prazo da rede Bitcoin, incluindo a resist\u00eancia qu\u00e2ntica, o desenvolvimento open-source, o acesso global a ferramentas de self-custody, a educa\u00e7\u00e3o e o envolvimento com os reguladores.<\/p>\n\n\n\n<p>Para assinalar o lan\u00e7amento, a MARA comprometeu <strong>100 000 d\u00f3lares<\/strong>, atribu\u00eddos por vota\u00e7\u00e3o da comunidade a uma de tr\u00eas organiza\u00e7\u00f5es: SateNet, 256 Foundation ou Libreria de Satoshi. A vota\u00e7\u00e3o permanece aberta at\u00e9 29 de abril \u00e0s 15h00 PST.<\/p>\n\n\n\n<p>Fred Thiel declarou durante a confer\u00eancia: &#8220;O Bitcoin \u00e9 o sistema descentralizado mais importante alguma vez criado, mas o seu futuro n\u00e3o est\u00e1 garantido.&#8221; Descreveu o Bitcoin como &#8220;um bem p\u00fablico que ningu\u00e9m det\u00e9m, mas do qual todos dependem&#8221;, acrescentando que &#8220;a descentraliza\u00e7\u00e3o n\u00e3o significa que funcione sozinho.&#8221;<\/p>\n\n\n\n<p>Este posicionamento merece aten\u00e7\u00e3o. Uma empresa que vende parte das suas reservas de Bitcoin ao mesmo tempo que financia a investiga\u00e7\u00e3o sobre a resist\u00eancia qu\u00e2ntica do protocolo n\u00e3o est\u00e1 a abandonar a tese do Bitcoin. Est\u00e1 a diversificar as suas fontes de receitas, refor\u00e7ando simultaneamente o seu capital simb\u00f3lico no ecossistema. Trata-se de uma postura coerente, mesmo que crie uma press\u00e3o vendedora a curto prazo que o mercado ter\u00e1 de absorver.<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-rich is-provider-twitter wp-block-embed-twitter\"><div class=\"wp-block-embed__wrapper\">\n<blockquote class=\"twitter-tweet\" data-width=\"500\" data-dnt=\"true\"><p lang=\"en\" dir=\"ltr\">Today at <a href=\"https:\/\/twitter.com\/TheBitcoinConf?ref_src=twsrc%5Etfw\">@TheBitcoinConf<\/a>, <a href=\"https:\/\/twitter.com\/MARA?ref_src=twsrc%5Etfw\">@MARA<\/a> CEO <a href=\"https:\/\/twitter.com\/fgthiel?ref_src=twsrc%5Etfw\">@fgthiel<\/a> announced the launch of MARA Foundation.<br><br>The MARA Foundation represents MARA\u2019s strategic commitment to supporting the health of the Bitcoin network, outside of our responsibilities as miners alone.<br><br>We believe Bitcoin embodies the\u2026 <a href=\"https:\/\/t.co\/3HHWF6jPiT\">pic.twitter.com\/3HHWF6jPiT<\/a><\/p>&mdash; MARA Foundation (@MARAFoundation_) <a href=\"https:\/\/twitter.com\/MARAFoundation_\/status\/2048812862064451889?ref_src=twsrc%5Etfw\">April 27, 2026<\/a><\/blockquote><script async src=\"https:\/\/platform.twitter.com\/widgets.js\" charset=\"utf-8\"><\/script>\n<\/div><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" class=\"wp-block-heading\" id=\"a-transicao-dos-mineiros-para-a-ia-risco-ou-oportunidade-para-o-bitcoin\">A transi\u00e7\u00e3o dos mineiros para a IA: Risco ou oportunidade para o Bitcoin?<\/h2>\n\n\n\n<p>A nossa an\u00e1lise \u00e9 a seguinte: a transi\u00e7\u00e3o dos mineiros para a IA \u00e9 uma faca de dois gumes para o mercado do Bitcoin. Por um lado, reduz a depend\u00eancia dos mineiros exclusivamente do pre\u00e7o do BTC e diminui a sua necessidade de vender compulsivamente para cobrir as despesas operacionais. Por outro, introduz um novo risco: se a procura por infraestruturas de IA abrandar, estes intervenientes ver-se-\u00e3o expostos a dois mercados vol\u00e1teis em simult\u00e2neo.<\/p>\n\n\n\n<p>A venda das reservas de BTC da MARA para financiar a transi\u00e7\u00e3o energ\u00e9tica e para a IA \u00e9 uma press\u00e3o vendedora documentada e mensur\u00e1vel. Esta contribui para a limita\u00e7\u00e3o do pre\u00e7o na atual zona dos <strong>76 000 aos 80 000 d\u00f3lares<\/strong>. No entanto, uma vez absorvidas estas vendas, e caso a transi\u00e7\u00e3o seja bem-sucedida, a MARA e os seus pares tornar-se-\u00e3o intervenientes menos dependentes do pre\u00e7o spot do Bitcoin para sobreviver, o que \u00e9 estruturalmente positivo para a estabilidade da rede.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"1024\" height=\"599\" src=\"https:\/\/media.investx.fr\/wp-content\/uploads\/sites\/2\/2026\/04\/28123154\/BTCUSDT_2026-04-28_13-44-16-1024x599-1.png\" alt=\"Gr\u00e1fico di\u00e1rio Bitcoin\/USDT na Binance a 28 de abril de 2026. O pre\u00e7o fecha em 76.676 d\u00f3lares, uma queda de 0,90%. A estrat\u00e9gia RSI (14, 30, 70) mostra um sinal de entrada longo em fevereiro de 2026 por volta dos 65.000 d\u00f3lares, com um RSI em 57,16 e a sua m\u00e9dia m\u00f3vel em 62,17, confirmando uma din\u00e2mica de alta moderada sem zona de sobrecompra. Fonte: TradingView.\" class=\"wp-image-119688\" srcset=\"https:\/\/media.investx.fr\/wp-content\/uploads\/sites\/2\/2026\/04\/28123154\/BTCUSDT_2026-04-28_13-44-16-1024x599-1.png 1024w, https:\/\/media.investx.fr\/wp-content\/uploads\/sites\/2\/2026\/04\/28123154\/BTCUSDT_2026-04-28_13-44-16-1024x599-1-300x175.png 300w, https:\/\/media.investx.fr\/wp-content\/uploads\/sites\/2\/2026\/04\/28123154\/BTCUSDT_2026-04-28_13-44-16-1024x599-1-768x449.png 768w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>Para acompanhar as previs\u00f5es de pre\u00e7o do Bitcoin e os catalisadores que poder\u00e3o alterar este cen\u00e1rio, a nossa p\u00e1gina de previs\u00e3o do pre\u00e7o do Bitcoin integra estas din\u00e2micas on-chain de forma cont\u00ednua. Aqueles que ponderam um posicionamento neste contexto encontrar\u00e3o um quadro de an\u00e1lise na nossa sec\u00e7\u00e3o sobre investir em criptomoedas, e o nosso comparativo das melhores exchanges de criptomoedas continua a ser a refer\u00eancia para escolher a plataforma adaptada ao seu perfil.<\/p>\n\n\n\n<p><strong>Fontes:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/x.com\/BSCNews\">BSCNews<\/a> no X<\/li>\n\n\n\n<li><a href=\"https:\/\/x.com\/MARAFoundation_\">MARAFoundation_<\/a> no X<\/li>\n\n\n\n<li><a href=\"https:\/\/fr.tradingview.com\/chart\/emC63rri\/?symbol=GEMINI%3ABTCUSDT\">TradingView<\/a><\/li>\n<\/ul>\n\n\n\n<p><strong>Artigos Relacionados:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/investx.fr\/pt\/noticias-cripto\/microstrategy-compra-bitcoin\/\">Michael Saylor e MicroStrategy: Novo investimento em Bitcoin impulsiona o mercado<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/investx.fr\/pt\/noticias-cripto\/top-3-memecoins-abril-2026\/\">Top 3 Memecoins para ficar de olho em Abril: PENGU, M e SPX<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/investx.fr\/pt\/noticias-cripto\/memecore-trump-ganhadores-perdedores-semana\/\">MemeCore e TRUMP: Quem ganhou e perdeu na Cripto esta semana?<\/a><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Descubra as 3 principais raz\u00f5es por tr\u00e1s da queda do Bitcoin e como isso afeta o mercado. An\u00e1lise completa e perspetivas futuras!<\/p>\n","protected":false},"author":47,"featured_media":119689,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":"","faq_titre":"","questions_frequentes":"","custom_permalink":"noticias-cripto\/bitcoin-queda-razoes"},"categories":[42,6],"tags":[],"class_list":["post-119690","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-bitcoin","category-noticias-cripto"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Bitcoin em queda: 3 raz\u00f5es e o impacto no mercado<\/title>\n<meta name=\"description\" content=\"Descubra as 3 principais raz\u00f5es por tr\u00e1s da queda do Bitcoin e como isso afeta o mercado. 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