Bitcoin

Bitcoin is a new electronic payment system that removes the need for third party financial institutions. It speeds up transactions while reducing costs and minimizing the potential for fraud. The name “cryptocurrency” points to how it uses “cryptographic proof” to work, AKA a blockchain.

Bitcoin’s concept was first introduced in 2008 when a person going by the pseudonym Satoshi Nakamoto shared a white paper titled “Bitcoin: A Peer-to-Peer Electronic Cash System.” In January 2009, the Bitcoin blockchain was launched. 

A new electronic payment system called Bitcoin removes the need for third-party financial institutions. It speeds up transactions while reducing costs and fraud-risk. The name “cryptocurrency” points to how it uses “cryptographic proof” to work, AKA a blockchain.   

Bitcoin has a finite supply of 21 million, which is expected to be reached by the year 2140. Currently, 18.8 million are circulating in the market. Note that Bitcoin represents the concept of the network, while bitcoin (lower-case ‘b’) represents the currency.

Bitcoin is one of the most well-known cryptos as it was the first decentralized currency. 

Currently, BTC’s dominance is above 40%. Bitcoin Dominance is a measure of how much of the total market cap of crypto is made up of Bitcoin. Bitcoin’s influence in the crypto ecosystem could be vulnerable to competition as alternative coins grow in popularity and utility.

Prediction markets are buzzing as traders on Polymarket and Kalshi lay down odds on where bitcoin may land through 2025, and the numbers paint a far more grounded picture than the moonshot fantasies circulating online. Prediction Markets Show Strong Odds for Bitcoin Re-Capturing Six Figures to End 2025 At 8:30 a.m.

Six-Figure Bitcoin Could Return, Yet Prediction Markets Expect a Tempered 2025 Close

The G-Knot relies on finger vein-scanning technology. Its creators say it's safer, and easier to use, than established hardware wallets.

This New Bitcoin, Crypto Wallet Scans Your Blood Vessels—And Needs Zero Passwords

A record $520 million exited BlackRock's iShares Bitcoin Trust (NASDAQ:IBIT) on Wednesday, signaling institutional confidence has flipped sharply defensive. Massive Outflows Show Investors Cutting Exposure Spot Bitcoin ETF Flows (Source: Coinglass) Spot Bitcoin (CRYPTO: BTC) ETF flows have deteriorated sharply in November, according to Coinglass.

BlackRock's Bitcoin ETF Sheds Record $520 Million: What's Up With IBIT?

Another day, another sideways shuffle in the bitcoin ballroom. Prices are stuck doing the cha-cha between resistance and support zones while technical signals wave a cautious yellow flag from every timeframe. Bitcoin Chart Outlook From the daily chart, it's hard to miss the dramatic descent from the glittering heights of $116,000.

Bitcoin Price Watch: Momentum MIA as $91K Struggles to Impress

Ethereum

SGX Derivatives, the derivatives arm of the Singapore Exchange Group, announced the launch of Bitcoin and Ethereum perpetual futures contracts on November 19, 2025.

Singapore Exchange (SGX) Launches Regulated Bitcoin and Ethereum Perpetual Futures

The BNB Chain sector declined a further 5% this week. Its market capitalization (mcap) fell back to $221.3 billion, effectively retracing four months of growth.

BNB Chain News: Sector Outperforms BTC as Fear Grips the Market

Bitcoin (CRYPTO: BTC) is back under pressure as Bloomberg's Mike McGlone warns the market could unwind all the way to $10,000. McGlone Draws 2018 Comparison McGlone said during a segment on Bloomberg TV on Tuesday that Bitcoin's current structure resembles the major unwinds seen in 2018, when price collapsed from $10,000 to nearly $3,000.

Can Bitcoin Crash To $10,000? Yes, If It Follows This 2018 Pattern, Expert Says

Perpetual futures traders have rapidly added leverage during bitcoin's decline, forming a setup K33 says has preceded further drawdowns.

Bitcoin derivatives market forming ‘dangerous' setup as hopes of a swift bounce fuel rapid leverage climb: K33

Dogecoin

Bitcoin held near $91,000 on Wednesday morning, with $279.3 million in liquidations hitting over 109,000 traders. Spot ETF flows have remained negative, with $372.8 million in Bitcoin outflows and $74.2 million leaving Ethereum products on Tuesday.

Bitcoin, Ethereum, Dogecoin Stall, But XRP Slips 2% As Markets Cool On Wednesday

Investors pulled roughly $523 million from BlackRock's flagship iShares Bitcoin Trust on Tuesday, according to data from Farside Investors, marking the fund's largest single-day withdrawal since its launch.

Investors pull record $523 million from BlackRock's flagship bitcoin ETF

As bitcoin BTC, ether ETH, XRP, and other tokens look to stabilize after recent weakness, market focus shifts to impending crucial events and data releases, including Nvidia's earnings report, the Federal Reserve's October meeting minutes, and the pivotal but delayed September U.S. jobs report.

Bitcoin Market Watch: Nvidia Earnings, Fed Minutes and Payrolls to Set The Tone

Analysts say bitcoin's drawdown resembles a short-term reset rather than a cycle-ending shift.

Bitcoin remains above $90,000 as retail selling deepens, year-end risks spur downside hedging

With bitcoin stabilizing near critical support, traders shifted into altcoins, sparking sharp rebounds across a market still gripped by extreme fear.

Crypto Markets Today: Altcoins Show Signs of Life as Bitcoin Holds Key Support Above $88K

Hougan argues that rising institutional demand for that service underpins Bitcoin's long-term trajectory despite market pullback concerns.

Bitwise CIO pushes back on bear market fears, says institutions want Bitcoin's value as a ‘service'

BlackRock's IBIT exchange-traded fund recorded a record one day outflow of $523.2 million on Tuesday.

BlackRock's Bitcoin ETF, IBIT, Posts Record One-Day Outflow of $523.2 Million

Meanwhile, spot Solana ETFs extended their positive flow streak to 16 days, accumulating $420 million in inflows.

BlackRock's bitcoin ETF posts record-setting outflows worth $523 million

Bitcoin BTC$90,319.47 options have flipped the script with a full 180-degree shift from last year's uber bullish bets to a sharply bearish stance.

From $140K Call to $80K Put: Bitcoin (BTC) Positioning Reverses Completely

Bitcoin's sharp downturn is resetting overstretched leverage, clearing the way for stronger structural momentum as markets shake out excess risk and position for renewed confidence amid enduring digital-asset resilience and optimism across AI and tech.

Bitcoin Poised for Rebound With Leverage Purge, Macro Shifts, and Rising Confidence

Dave Portnoy, the founder of Barstool Sports, revealed on Tuesday a $2 million investment in cryptocurrencies, including Bitcoin (CRYPTO: BTC), capitalizing on the ongoing market downturn. Portnoy Buys The Dip In a video posted on X, Portnoy said he bought nearly $1 million in XRP (CRYPTO: XRP), $750,000 in Bitcoin, and $400,000 in Ethereum (CRYPTO: ETH), totaling more than $2 million, on Monday.

Dave Portnoy Says He's Like A 'Great White Shark' When There's Blood In The Streets, Reveals $2 Million Worth Of Crypto Purchases

Welcome to Asia Morning Briefing, a daily summary of top stories during U.S. hours and an overview of market moves and analysis. For a detailed overview of U.S. markets, see CoinDesk's Crypto Daybook Americas.

Asia Morning Briefing: BTC Market Stress Reveals a New Crypto Order

Leading cryptocurrencies recouped some losses on Tuesday, following steep declines the previous day. Cryptocurrency Gains +/- Price (Recorded at 8:20 p.m.

Bitcoin, Ethereum, XRP, Dogecoin Rebound After Crypto Wipout Erases 2025 BTC Gains: Analyst Says Bears In 'Full Control'

Brandon Gill has purchased up to $2.6 million in Bitcoin this year, according to House transaction reports.

Trump Congressional Ally Discloses Latest Six-Figure Bitcoin Purchase

Former BitMEX CEO Arthur Hayes thinks that Bitcoin could plummet to the low $80,000s before rising as high as $250,000 by year's end.

Bitcoin Billionaire Arthur Hayes Blames Crypto Plunge on 'Contraction in Dollar Liquidity'

Bitcoin Magazine When the American Dream Feels Unaffordable, Bitcoin Is For Everyone Reveals Why—and How Bitcoin Offers a Hopeful Path forward NEW YORK, NY — November 18, 2025 — Today marks the release of Bitcoin Is for Everyone: Why Our Financial System Is Broken and Bitcoin Is the Solution, in which award-winning journalist and educator Natalie Brunell offers clarity and hope to readers navigating rising prices, inflation, and economic uncertainty.

When the American Dream Feels Unaffordable, Bitcoin Is For Everyone Reveals Why—and How Bitcoin Offers a Hopeful Path forward

SGX Derivatives announces exchange‑cleared bitcoin and ethereum perpetual futures launching November 24, 2025. SGX Derivatives announced on November 17, 2025 in Singapore that it will launch bitcoin and ethereum perpetual futures on November 24, 2025, offering continuous, no‑expiry contracts within an exchange‑cleared, regulated framework for institutional, accredited, and expert investors.

News for Bitcoin Crypto (BTC)