Uniswap is holding a final governance vote on its Fee Switch Activation Proposal from December 19 to December 26. If approved, a two-day timelock would precede a burn of 100 million UNI and the activation of v2 and v3 mainnet fee switches, affecting LP earnings. UNI was $5.31 with a $3.35 billion market cap on December 20, 2025, per CoinMarketCap.

Arthur Hayes has moved 508.647 ETH, valued at about 1.50 million US dollars, to Galaxy Digital, a transaction tracked by LookIntoChain. At the same time, his family office Maelstrom is buying high-quality altcoins during market pullbacks, while he maintains a prediction that Bitcoin could eventually reach 1,000,000 US dollars. Ethereum's recent price performance and trading metrics further frame market reactions to Hayes' latest moves.

Bybit, the Dubai-based cryptocurrency exchange, is resuming UK operations on December 19 after a two-year suspension by operating under Archax's FCA-compliant framework. The collaboration enables access to 100 spot cryptocurrency trading pairs, including assets such as Bitcoin and Ethereum, with zero deposit and withdrawal fees via Archax. Bitcoin's market dominance, price performance and broader regulatory alignment in the UK may shape how users engage with this newly regulated trading venue.

According to Coincu, North Korean‑linked hacking groups stole over $2 billion in cryptocurrencies in 2025, with a February breach at Bybit allegedly contributing up to $1.5 billion. Analysts cited in the article say tactics increasingly involve social engineering and insider access, and total thefts since 2016 are reported at $6.7 billion.

On April 24, 2025, the Federal Reserve Board withdrew its 2023 guidance that limited uninsured banks from engaging in crypto-asset activities, a policy previously linked to Custodia Bank’s master account outcome. The Board indicated it will rely on standard supervisory monitoring going forward, a shift that could broaden bank participation in digital-asset services while elevating discussions on oversight and risk.

U.S. Senators Jerry Moran and Elissa Slotkin introduced the SAFE Crypto Act to establish a federal task force focused on cryptocurrency fraud. The measure seeks coordination across government and private-sector experts to study scam patterns, strengthen prevention, equip local law enforcement with investigative tools, and expand public awareness efforts.

U.S. Senators Jerry Moran and Elissa Slotkin have put forward the bipartisan SAFE Crypto Act to create a federal task force focused on cryptocurrency fraud. The initiative would bring together the Treasury Department, law enforcement agencies such as the FBI, and private sector experts to address digital asset scams and improve public awareness.

At a recent Robinhood keynote, CEO Vlad Tenev outlined plans for a major expansion in prediction markets, saying annual trading activity could eventually reach trillions of contracts. He highlighted $115 million in Q3 2025 revenue and 2.5 billion contracts traded in October from prediction products, alongside new AI features aimed at boosting engagement and user growth.

HashKey Holdings (3887.HK) began trading on the Hong Kong Stock Exchange on December 17, 2025, with shares opening at HK$6.70 and reaching a high of HK$7.12. The company, which positions itself as Asia's largest onshore digital asset platform, is using IPO proceeds for product development and branding while emphasizing a regulatory-compliant growth strategy.