Bitcoin

81 105,00 $
5 034,28 $(+6,21%)Aujourd'hui
Capitalisation boursière
1,63 Bn
Volume total (24 h)
44,47 Md
Volume / Capitalisation
0,0273
Offre en circulation
20,09 M
Fourchette du jour (24 h)
76 252,00 $81 304,00 $
Plus bas historique
67,81 $
Plus haut historique
126 080,00 $

À propos de Bitcoin (BTC)

Bitcoin (BTC) est la première monnaie numérique décentralisée au monde et le fondement de l'écosystème crypto mondial. Créé en 2009 par le développeur pseudonyme Satoshi Nakamoto, Bitcoin a introduit un système de paiement peer-to-peer qui élimine le besoin de banques ou d'intermédiaires. Chaque transaction Bitcoin est vérifiée et enregistrée sur la blockchain, un registre transparent et immuable accessible partout dans le monde.

Contrairement aux monnaies traditionnelles contrôlées par les banques centrales, Bitcoin fonctionne sur un modèle d'offre limitée plafonné à 21 millions de coins, ce qui le rend intrinsèquement rare et déflationniste. Les nouveaux BTC sont émis par le biais du mining, un processus par lequel des participants du monde entier utilisent leur puissance de calcul pour valider les transactions et sécuriser la blockchain. Ce système de proof-of-work (PoW) garantit que Bitcoin reste sécurisé, résistant à la censure et décentralisé.

Souvent qualifié d'or numérique, Bitcoin est utilisé dans le monde entier comme réserve de valeur. Il alimente tout, des paiements directs aux applications de finance décentralisée (DeFi), en passant par les produits Bitcoin wrappés (comme le WBTC et le tBTC) qui apportent la liquidité du BTC dans d'autres écosystèmes blockchain tels qu'Ethereum et Solana.

En tant que réseau open source, le développement et la gouvernance de Bitcoin sont assurés par une communauté distribuée d'ingénieurs, de miners et d'utilisateurs. Les mises à niveau et optimisations du réseau sont proposées via des Bitcoin Improvement Proposals (BIPs) transparentes, préservant à la fois la stabilité technique et la neutralité mondiale.

Historique des prix

Aujourd'hui (18 septembre 2026)81 105,00 $+6,21%
Il y a 24 heures (17 septembre 2026)76 364,94 $+6,21%
Il y a 1 semaine (11 septembre 2026)77 242,86 $+5,00%
Il y a 1 mois (19 août 2026)68 966,84 $+17,60%
Il y a 1 an (18 septembre 2025)117 373,37 $-30,90%

Calculatrice

Mouvements du marché BTC

Propulsé par MetaMask Market Insights


Variation sur 24 h : +1,10%. De 64 258,16 $ à 64 965,00 $.

  • Attackers exploited a vulnerability in BTCPay Server that exposed LND credential files known as macaroons. This allowed them to take control of Lightning nodes and drain funds from channels, affecting users including hardware wallet maker Foundation and publication Citadel21. BTCPay advised all users running LND to update immediately to version 2.4.2 or take their servers offline. The incident follows the recent Coldcard hardware wallet exploit and is part of a challenging week for Bitcoin-related software infrastructure.
  • Spot Bitcoin ETFs absorbed approximately 13,500 BTC over the past week, more than six times the amount of new supply from mining. This institutional accumulation is contributing to Bitcoin holding steady in the $64,000 to $65,000 range despite negative headlines. On-chain metrics show improving whale balances and long-term holder behavior even as some technical indicators reflect mixed conviction in the short term.
  • The US Senate has postponed votes on the CLARITY Act, which would clarify regulatory roles between the SEC and CFTC for crypto assets. Some analysts caution that market optimism about its passage may already be priced in to current levels. The uncertainty forms part of broader discussions on the regulatory environment for Bitcoin and digital assets heading into the remainder of 2026.

Variation sur 24 h : -1,48%. De 66 003,24 $ à 65 027,00 $.

  • Bitcoin has rallied more than 13 percent from its July 1 low near $57,750 but is now holding between $64,000 and $66,800 for multiple sessions. The price recently slipped below $65,000 after failing to break above $66,000 resistance. This matters because the market appears to be catching its breath after its strongest month since January and is waiting for a fresh catalyst before the next directional move.
  • Escalating conflict involving Iran has sent oil prices higher and contributed to a slump in stocks and risk assets. Bitcoin slipped to around $64,800 as Treasury yields rose and broader market sentiment deteriorated. These events illustrate how global macroeconomic and geopolitical developments continue to influence short-term cryptocurrency price action.
  • Grayscale's research indicates Bitcoin's price may have bottomed earlier than the traditional four-year cycle low. This view comes as Bitcoin showed resilience near recent multi-week highs despite geopolitical news and maintained ETF inflows. The assessment aligns with improving technicals such as bullish RSI divergence noted by some observers.

Variation sur 24 h : -0,76%. De 63 090,59 $ à 62 609,00 $.

  • Traders are monitoring the June CPI data release and testimony from new Federal Reserve Chair Kevin Warsh, both scheduled for today. Rising US bond yields reflect market expectations of persistent inflation tied to higher oil prices. Bitcoin has traded in a range between approximately $61,500 and $65,000 as these events unfold, following a recovery from late June lows near $57,000 to $58,000.
  • The US government moved approximately $288 million worth of Bitcoin and Ethereum to Coinbase Prime. This action has drawn significant community discussion. It occurs as Bitcoin recovers from recent lows but faces ongoing macro pressures.
  • MicroStrategy has paused its Bitcoin buying spree and raised funds to build a $3 billion cash cushion providing roughly 20 months of coverage. A new Bitcoin Banking Adoption Index shows overall bank adoption at 32 percent. This comes as institutional signals remain mixed with uneven ETF demand.

Variation sur 24 h : -1,29%. De 63 935,41 $ à 63 112,00 $.

  • Bitcoin has maintained trading above $62,000 despite fresh US strikes on Iran that have raised oil prices and market uncertainty. Spot Bitcoin ETFs recorded positive inflows recently, ending a streak of outflows. This price resilience occurs as the market also anticipates a Federal Reserve decision at month end that could influence broader risk assets.
  • A Bitcoin address inactive since 2018 transferred 2,931 BTC valued at approximately $188 million to a new wallet. The coins were originally acquired when Bitcoin traded near $6,500, representing nearly a tenfold increase in value. The transfer did not route to an exchange, which observers interpret as likely related to security or consolidation rather than immediate selling.
  • Bipartisan talks continue on the Digital Asset Market Clarity Act, with a possible new draft expected soon and Senate consideration targeted for the week of July 20. The legislation seeks to create a clearer regulatory framework for crypto and digital assets. Industry participants are watching closely as Congress nears its August recess, making this a critical period for the bill.

Variation sur 24 h : -0,44%. De 64 208,81 $ à 63 924,00 $.

  • Bitcoin has spent 307 days trading between $60,000 and $70,000, the third-longest consolidation within any $10,000 price band in its history. This extended range follows peaks above $90,000 and $126,000 in late 2025 and early 2026. Analysts note that future parabolic moves may require over $1 trillion in fresh capital due to the asset's larger market size and maturing dynamics.
  • Bitcoin treasury firm Empery Digital sold about half of its BTC stack. Strategy sold thousands of BTC recently after purchases at higher prices and reported substantial unrealized losses in Q2 2026. These actions have prompted questions about corporate Bitcoin strategies even as governments and other public companies continue accumulating.
  • Lawmakers may release a new combined version of the Clarity Act as soon as next week. The bill merges Senate Banking and Agriculture Committee efforts but faces unresolved issues including ethics rules on officials' crypto holdings. It would provide market structure rules relevant to Bitcoin if it gains sufficient support and advances through Congress.

Récapitulatif des réseaux sociaux

Données fournies par Brandwatch.

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Sentiment BTC

Mises à jour BTC propulsées par Brandwatch. Ceci ne constitue pas un conseil financier. Dernière mise à jour le 17 juin 2026.

Indicateurs haussiers pour BTC

As of 2026-06-17, BTC traded at $64,800, with 24h -2.43% and 7d +5.74%. 24h volume was $25.25B, and market cap was $1.30T.

Strategy holdings have reached 845,256 BTC (~4% of total supply) after a 1,550 BTC buyback at $65,332. The accumulation continued despite a small 32 BTC sale for dividend funding, per Parshwa Turakhiya (June 13). (Source)

Spot Bitcoin ETFs (exchange-traded funds) drew $85.85M on June 12, the largest single-day inflow in about 4 weeks. Cumulative net inflows now stand at $53.62B, per Kamina Bashir (June 13). (Source)

Indicateurs baissiers pour BTC

Bitcoin mining difficulty fell -10.09% at block 953,568, per CoinWarz data (June 14). Network hashrate stands at 886 EH/s, down -12% in June as miners pivot to AI workloads. Reduced hashrate may weigh on network security perception. (Source)

The CME FedWatch tool prices ~50% odds of a Federal Reserve rate hike in 2026, per CME Group data (June 17). Markets had expected multiple cuts at year start. The hawkish repricing could continue to pressure risk assets including BTC. (Source)

BTC futures open interest fell -8.5% to a 6-month low, per CoinGlass data (June 14). Funding rates on perpetual contracts flipped from positive to negative during early June. The unwinding may signal continued caution among leveraged traders. (Source)

Cryptomonnaies tendance

Les cryptomonnaies ayant connu les plus fortes variations de prix au cours des dernières 24 heures.

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