Bitcoin BTC

#1

$81,675-1.9% 24h

Why is BTC down today? →
Share
Bitcoin price, last 30 days (USD)
$75,986$81,093$86,201Sep 15Oct 15
View as table
Date (UTC)Price
Oct 15$81,615
Oct 14$83,115
Oct 13$81,795
Oct 12$83,691
Oct 11$82,918
Oct 10$82,564
Oct 9$81,686
Oct 8$83,282
Oct 7$85,540
Oct 6$85,771
Oct 5$86,490
Oct 4$84,743
Oct 3$84,506
Oct 2$84,842
Oct 1$83,576
Sep 30$83,640
Sep 29$83,479
Sep 28$84,449
Sep 27$84,417
Sep 26$84,076
Sep 25$84,378
Sep 24$84,382
Sep 23$86,183
Sep 22$86,597
Sep 21$81,169
Sep 20$81,236
Sep 19$80,874
Sep 18$76,371
Sep 17$76,147
Sep 16$75,590
Sep 15$78,173

Market data

Market cap
$1.64T
24h volume
$33.88B
Fully diluted value
$1.64T
24h range
$81,376 – $84,025
7d / 30d
-1.9% / +3.9%
1 year
-28.0%
Circulating supply
20.1M BTC
Max supply
21M BTC
Total supply
20.1M BTC
All-time high · Oct 6, 2025
$126,080 -35.2%
All-time low · Jul 5, 2013
$67.81
Launched
Jan 3, 2009

About Bitcoin

Bitcoin is the world's first decentralized cryptocurrency, created in 2009 by the pseudonymous Satoshi Nakamoto. It enables peer-to-peer electronic cash transactions without intermediaries like banks or governments, operating on a blockchain secured by Proof of Work mining and the SHA-256 cryptographic algorithm.

With a fixed supply cap of 21 million coins and programmatic halvings every four years that reduce miner rewards, Bitcoin is designed as a deflationary digital asset often called "digital gold." Its value stems from solving the double-spending problem without trusted intermediaries, creating the first truly scarce digital asset with censorship resistance and permissionless access that no government, corporation, or individual can control.

Bitcoin operates as a decentralized peer-to-peer network where transactions are recorded on a public ledger called the blockchain, distributed across thousands of computers globally. Transactions are grouped into blocks added approximately every 10 minutes through mining, where specialized computers compete to solve complex mathematical puzzles.

Bitcoin has achieved mainstream adoption through multiple vectors. The January 2024 SEC approval of 11 spot Bitcoin ETFs opened Bitcoin investment to traditional finance participants, and corporations like Strategy (formerly MicroStrategy) are using Bitcoin as a treasury reserve asset to protect against currency debasement, offering MSTR holders amplified exposure to Bitcoin.

Smart Contract PlatformLayer 1 (L1)FTX HoldingsProof of Work (PoW)Bitcoin EcosystemGMCI 30 IndexGMCI IndexCoinbase 50 Index

Official links

Latest Bitcoin news

Market data, description and links from CoinGecko, updated Thu, 15 Oct 2026 00:09:57 GMT. News from 25 crypto publishers. Not financial advice.