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CME Group CEO Terry Duffy said Hyperliquid could face obstacles entering the U.S. market over know-your-customer requirements and broader compliance issues. Speaking on Bloomberg’s podcast 'Odd Lots,' Duffy said a platform cannot shift regulatory responsibility to users or distributors simply by arguing it only provides infrastructure, and warned the combination of high leverage and automatic liquidation without identity checks could trigger cascading liquidations and broader market disruption. Hyperliquid currently does not require identity verification and is not registered with U.S. regulators, meaning compliance with relevant rules would be needed to enter the U.S. market.

Blockstream has launched an advisory service for financial institutions such as banks and asset managers and opened an office in Lugano, Switzerland, Bitcoin Magazine reported. The bitcoin infrastructure company said the service will support the evaluation, design and buildout of Bitcoin-based financial infrastructure, while also offering solutions tied to tokenized asset issuance and trade data privacy. Blockstream co-founder and CEO Adam Back said, "비트코인 채택의 다음 단계는 기존 금융 시스템과의 통합."

Bitwise’s Dogecoin ETF, BWOW, has entered its planned liquidation process, NewsBTC reported. The ETF stopped trading on NYSE Arca after Oct. 14, and remaining holders will receive cash based on net asset value as of Oct. 21. Distributions began on Oct. 22, according to NewsBTC, and the actual payment timing may vary by brokerage processing procedures. The liquidation is limited to the ETF as an investment product and does not affect Dogecoin trading or the protocol itself.

The U.S. Internal Revenue Service is pursuing an overhaul of its tax voluntary disclosure program that would cover cryptocurrency and aim to lower penalties and shorten processing times, Cointelegraph reported. Jarod Koopman, head of the IRS Criminal Investigation division, said the agency aims to introduce the revamp before December and process cases within 120 days after taxpayers complete required filings. The IRS plans to use its existing voluntary disclosure program rather than create a separate crypto-specific process, while installment payments and negotiated penalty relief are also under review. The agency did not disclose the specific size of any penalty cuts, and the program is intended for taxpayers who could face criminal punishment for willful tax violations. Separately, Congress is also discussing a distinct cryptocurrency voluntary disclosure option for correcting non-willful filing errors, according to the report.

An Argentine federal court has dismissed a criminal case tied to the LIBRA memecoin against President Javier Milei, his sister Karina Milei, U.S. businessman Hayden Davis, and eight others, Yahoo News reported. The court found it was difficult to prove fraud based solely on Milei’s promotion of the token and its sharp price rise and fall, and said there was no evidence to support allegations that Karina Milei had received improper payments. LIBRA plunged after President Milei promoted it on X in February 2025, and blockchain analysts found about $99 million was withdrawn from eight wallets tied to the token. Around 40,000 investors suffered total losses of $110 million, according to the report.

Major exchanges have seen $160 million worth of futures liquidated in the past hour. In the past 24 hours, $481 million worth of futures have been liquidated.

According to CoinNess market monitoring, BTC has fallen below $81,000. BTC is trading at $80,997.99 on the Binance USDT market.

Mastercard is adopting an agent payment method using x402 and USDC, with settlement taking place on the Base network, according to Layer 2 blockchain Base.

Nasdaq-listed HYPE accumulation company Hyperliquid Strategy, Hyperliquid Strategies (PURR), has increased its stock buyback program to $100 million from $30 million, according to The Block. About $72 million remains under the currently approved authorization. Hyperliquid Strategy also extended the program’s expiration date to Oct. 31, 2027, from Dec. 5, 2026, according to The Block. The timing and size of actual share repurchases will be determined at management’s discretion.

The three major U.S. stock indices closed lower today. - S&P 500: -0.52% - Nasdaq: -0.21% - Dow Jones: -1.24%

U.S. Commodity Futures Trading Commission Chairman Michael Selig is closely monitoring whether prediction markets are being manipulated ahead of the midterm elections, and violators will be held accountable, Cointelegraph reported.

Layer-one blockchain Solana said AAPL issued by Backpack Securities is available for trading on Solana through Sunrise.

Binance co-founder Changpeng Zhao, also known as CZ, said on X, "Bitcoin is dead" has been declared countless times before, and those moments were the best times to buy Bitcoin.

Johann Kerbrat, Robinhood’s head of crypto, said more than 70% of Robinhood’s stock token trading volume is occurring outside regular U.S. stock market hours, adding that the world does not stop on Friday night. Kerbrat also said the market remains in its early stages, but stock tokens have potential as a market where trade processing is several orders of magnitude faster than in traditional finance.

The U.S. Department of Defense has banned U.S. service members and Defense Department employees from trading on prediction markets using nonpublic information, according to NewsBitcoin. Defense Secretary Pete Hegseth warned military-operation prediction trading exposes sensitive information to adversaries and could put troops at risk. The ban covers both classified and unclassified information and specifically names prediction market platforms Polymarket and Kalshi, along with existing betting services and other financial platforms. Violations could lead to administrative penalties, disciplinary proceedings or criminal prosecution under military regulations and related federal law. The guidance comes months after a soldier was indicted earlier this year for making $400,000 on Polymarket using nonpublic information.

South Korean exchanges Upbit, Bithumb and Coinone announced a caution notice for investment in Init (INIT). The exchanges said they had identified signs of a security incident involving Init through media reports and other channels.

Israeli Prime Minister Benjamin Netanyahu mentioned blockchain technology and digital assets as viable alternatives in the event of banking sanctions, saying in an interview that an alternative economy would be needed if such sanctions were imposed, Crypto Briefing reported. Netanyahu also instructed officials to draw up a comprehensive plan. He did not mention any specific blockchain protocol, company, or token.

Bank of America (BofA) senior research analyst Shaun Kelley said the expansion of prediction markets is increasing competitive pressure on traditional sports betting operators, according to Walter Bloomberg. Kelley said Wall Street initially underestimated the potential of prediction markets and explained platforms such as Kalshi are challenging established sports betting companies including DraftKings and FanDuel. He cited nationwide availability across all 50 U.S. states and eligibility for users age 18 and older as key competitive strengths of prediction markets. By contrast, traditional sports betting is generally allowed only for those 21 and older under state-by-state regulations.

Layer-1 blockchain Initia (INIT) said Initia L1 and its rollups were halted as of 3:41:30 p.m. UTC on Oct. 23 following a security incident. The team said it is investigating the scope of the impact with its security team, validators and exchanges, and plans to share confirmed information through official channels.

Tether has frozen $2.2 million in USDT linked to the hack of Indian cryptocurrency exchange CoinDCX, which was said to involve about $16 million in stolen USDT, CoinDesk reported.

South Korean exchanges Upbit and Coinone announced a temporary suspension of deposits and withdrawals for Inicia (INIT) over a security issue.

Ether.fi has acquired Zeal Wallet, a cryptocurrency wallet service. Zeal Wallet users can migrate their data directly to Ether.fi through the application. Once the process is complete, users will be able to access Ether.fi’s lending, yield, stock and gold trading services. Financial terms of the deal, including the acquisition price and other conditions, were not disclosed.

A hacking attack on the layer-one network Initia exploited an unlimited token minting vulnerability, with more than $2.6 million stolen so far and a risk of additional losses, according to Unfolded. Unfolded said forged token minting transactions were identified on the Initia blockchain explorer, and the hacker’s Etherscan address was also disclosed. Initia’s total value locked stood at around $5.9 million, while INIT’s market capitalization was estimated at about $28 million.

David Hoffman, host and co-founder of crypto podcast platform Bankless, said tokens once known in 2017 as Bitcoin clone coins are drawing attention again. In a post on X, Hoffman said PRL rose 30% this week and reached a fully diluted valuation of about $4.2 billion, while QTC has surged 300% this month and is valued at about $1.8 billion based on a total supply of 21 million tokens. Hoffman added that it is worth noting that tokens with maximum supplies capped at 21 million are now being assigned multibillion-dollar valuations.

Wells Fargo, Intuit and four other listed companies have formally exercised their right to refuse stock tokenization listings through OKXICE, a joint platform run by OKX and Intercontinental Exchange, the parent of the New York Stock Exchange. That brings the number of companies opposing such listings on the OKXICE platform to 22.