On December 9 2025, the European Commission opened a formal antitrust investigation into Google’s use of web publisher material and YouTube videos to train and deploy its AI services. Regulators are examining whether Google imposed unfair conditions on creators, granted itself preferential data access, and disadvantaged rival AI developers through features such as AI Overviews and AI Mode in search. If the EU finds breaches of competition rules, Alphabet could face fines of up to 10% of global revenue and changes to how its AI systems access third-party content.

California resident Evan Tangeman, 22, pleaded guilty to participating in a crypto laundering operation and admitted to moving about $3.5 million. The ring stole roughly 4,100 BTC valued at approximately $263 million and operated from October 2023 to May 2025, according to prosecutors. Tangeman is the ninth defendant to enter a plea.

On December 9, 2025, Storm Slivkoff, a research partner at Paradigm, said Polymarket’s trading volumes are effectively counted twice on most analytics dashboards due to redundant on-chain events. Summing the platform’s OrderFilled events records both maker and taker legs, making a $4.13 YES/NO trade show as $8.26 in reported volume. Paradigm built a simulator to show how different metrics behave across at least eight Polymarket trade types and to help analysts correct volume calculations.

Ethereum's exchange-held supply has declined to 8.84%, nearly half Bitcoin's 14.8%, data show. Staking contracts, DeFi protocols, and long-term holding patterns are driving ETH off trading platforms at an accelerated pace compared to BTC.

JPMorgan analysts said on December 4 that MicroStrategy's financial stability holds greater influence over Bitcoin's short-term trajectory than recent miner selling activity. The firm's Managing Director Nikolaos Panigirtzoglou noted that MSTR's enterprise value-to-bitcoin holdings ratio of 1.13 provides market reassurance despite declining hashrate and operational pressures on miners.

Ethereum maintains $174.95 billion in stablecoin supply, representing 63% year-over-year growth, data show. Layer 2 solutions Arbitrum One and Base Chain hold $7.84 billion and $4.53 billion respectively. Competition intensifies across secondary networks as total stablecoin supply reaches an all-time high of $283.2 billion.

BlackRock's iShares Bitcoin Trust ETF generated $3.7 billion in trading volume, exceeding Vanguard's S&P 500 ETF at $3.28 billion. Bitcoin price increased approximately 7% within 24 hours, reaching $93,040. Mining stocks declined despite the broader market recovery, with hash price falling to roughly $39 per PH/s.

Ethereum developers are advancing a zero-knowledge protocol to strengthen privacy in blockchain transactions. The initiative features a Secret Santa matching system using zero-knowledge proofs and transaction relayers to preserve user anonymity while preventing Sybil attacks, according to research shared via an Ethereum community forum.

Financial services firm Cantor Fitzgerald disclosed a $1.28 million stake in the Volatility Shares Solana ETF, holding 58,000 shares as of mid-November, according to an SEC filing. The investment marks Cantor's first documented exposure to a regulated Solana-based product. The disclosure comes as multiple Solana ETF launches follow the SEC's September approval of generic listing rules for commodity-based trusts.