Vanguard, which manages $11 trillion in assets, will allow its approximately 50 million clients to trade cryptocurrency ETFs and mutual funds on its brokerage platform starting Tuesday, Bloomberg reported. The firm will provide access to regulated crypto products that meet U.S. compliance standards. Products linked to memecoins or lacking explicit SEC support will remain restricted.

Bitcoin mining profitability declined for the fourth consecutive month in November, with average daily block reward gross profit falling 26% month-over-month, JPMorgan analysts reported. Network hashrate retreated 1% to 1,074 exahashes per second after reaching an all-time high in October. The fourteen U.S.-listed miners tracked by the bank saw their combined market capitalization drop 16% to $59 billion.

The Federal Deposit Insurance Corporation will publish proposed stablecoin oversight regulations under the GENIUS Act before year-end. Acting FDIC Chair Travis Hill said the agency will first establish an application framework for issuers seeking federal supervision this month. A separate proposal on prudential requirements will follow in early 2026.

U.S. prediction market platform Kalshi announced plans to tokenize thousands of event contracts on Solana, aiming to attract crypto-native traders and deepen liquidity. The move intensifies competition with Polymarket as both platforms recorded record volumes in November, with Kalshi reaching $5.8 billion and Polymarket surpassing $3.7 billion.

The Bank of Israel announced enhanced regulatory oversight of stablecoins, with Governor Amir Yaron identifying them as a systemic force in global finance. The move came during a Tel Aviv conference where officials presented an updated timeline for the country's central bank digital currency project. The sector has reached a market capitalization exceeding $300 billion with monthly transaction volumes surpassing $2 trillion, according to Yaron.

BitMine Immersion Technologies purchased 96,798 ETH last week, expanding total holdings to 3.73 million ETH valued at approximately $10.5 billion. The acquisition occurred as Ethereum declined 6% overnight to just above $2,800, while BitMine shares fell over 11%. The company cited the upcoming Fusaka upgrade scheduled for Dec. 3 as a catalyst for accelerated purchases.

Bitcoin declined approximately 5% within 24 hours to $86,415.88 as weakening technical momentum met deteriorating market liquidity. The several-thousand-dollar drop occurred without news catalyst, exposing fragile liquidity conditions and record-high leverage that have defined this year's trading environment. Weekend sessions have repeatedly produced unusually large price swings, with thin order books allowing modest selling to trigger cascading liquidations.

Yearn Finance confirmed an exploit targeting its yETH liquid staking token pool on November 30, 2025. An attacker exploited an infinite-mint vulnerability to drain millions in liquid staking tokens, routing approximately 1,000 ETH (around $3 million) to Tornado Cash. The protocol stated that Yearn Vaults V2 and V3 remain unaffected.

Michael Saylor departed from his year-long Sunday routine of posting orange dots that preceded Bitcoin purchases, instead introducing green dots on November 30, 2025. The change has sparked debate over whether Strategy might pursue stock buybacks or alter its Bitcoin holdings. The company's stock has fallen 38% year-to-date, limiting its ability to raise capital through share issuance.