Coinbase plans to unveil a prediction market and an in-house tokenized equities product at a Dec. 17 showcase. The sector has seen rapid growth, with Kalshi and Polymarket's combined monthly volume hitting $7.7 billion in November, and Gemini and Crypto.com outlining new initiatives. Coinbase shares closed down 2.2% at $269.02 on Thursday.

Ethereum-focused treasury firm BitMine reportedly purchased $112 million worth of ETH this week, as chairman Tom Lee reiterated his view that Ethereum has already bottomed at $2,500. The firm’s continued accumulation comes amid broader macro uncertainty following the Fed’s latest rate cut, which pressured crypto prices despite equity gains.

The American Federation of Teachers sent a letter to the US Senate on Monday urging lawmakers to withdraw the Responsible Financial Innovation Act, a bipartisan bill that would define digital assets and payment stablecoins, according to CNBC. The union, which represents 1.8 million members, warned that the proposal could expose pensions and working families to crypto-related risks by enabling tokenized securities and expanding digital assets in retirement portfolios. It also cautioned that gaps in the bill’s oversight of illegal activities could help set the stage for a future financial crisis.

Citadel Securities has urged the U.S. Securities and Exchange Commission to classify decentralized finance protocols as exchanges and broker-dealers when they facilitate tokenized securities trading. In a letter dated Tuesday, the trading firm warned that broad regulatory exemptions would create inconsistent standards for identical securities and weaken investor protections. The proposal has drawn sharp criticism from cryptocurrency industry leaders who argue it misinterprets existing law and threatens innovation.

Connecticut's Department of Consumer Protection issued cease-and-desist orders on Tuesday targeting Kalshi, Robinhood, and Crypto.com for offering event contracts without state licenses. Regulators classified these offerings as illegal sports wagering, citing violations of state gaming laws and consumer protection standards. The platforms must immediately stop advertising to Connecticut residents and allow users to withdraw funds.

BitMine purchased $150 million worth of Ethereum on Wednesday, acquiring 48,623 ETH through multiple exchanges, data show. Collective purchases by Ethereum digital asset treasuries fell to 370,000 ETH in November, marking an 81% decline from the 1.97 million ETH bought in August. The company's treasury now holds over 3% of Ethereum's total circulating supply.

The United Kingdom enacted the Property (Digital Assets etc.) Act 2025 on Tuesday, creating a third category of property under UK law for digital assets including bitcoin and stablecoins. The legislation, which passed both parliamentary chambers without amendments, provides legal clarity for ownership disputes, asset recovery, and insolvency proceedings involving digital holdings.

American Bitcoin shares fell 38.83% on Tuesday after restrictions lifted on shares issued in a pre-merger private placement. The stock declined nearly 50% in early trading before closing at $2.19. Co-founder Eric Trump said early investors were taking profits and confirmed he would not sell his holdings.

AI research firm Anthropic disclosed that automated AI agents successfully exploited 17 of 34 smart contracts in a simulated blockchain environment, extracting $4.5 million in test funds. The models tested included Claude Opus 4.5 and Claude Sonnet 4.5 against contracts deployed after March 2025. The AI agents also identified two previously unknown vulnerabilities in recently launched contracts.