Hyperliquid L1 now holds about $6.97B of USDC, edging past Solana's $6.78B to become the second-largest USDC chain after Ethereum's $44.7B — DefiLlama
Mastercard unveiled Stablecoin Security, a new tool that screens stablecoin payments for fraud and sanctions risks as the card giant pushes deeper into on-chain dollars — The Block
Mesh partnered with Visa to let users spend their crypto and stablecoins directly, without needing a separate crypto card — The Block
The CFTC told a federal court that CME lacks standing to fight its US perpetual futures policy, noting CME's own crypto futures volume has risen since perps were allowed — CoinDesk
Coinbase added AXIS, PEARL and STABLE to its asset listing roadmap, the step before the exchange opens spot trading for new tokens — Coinbase
BlackRock filed for a Bitcoin Managed Protect ETF that would give investors upside exposure to its IBIT fund while adding built-in downside protection — The Block
Bitcoin's one-year volatility has dropped to 43%, down from a 64% ten-year average and 81% five years ago, now lower than that of 19% of S&P 500 stocks — Grayscale
Citi Research called Aave a decentralized collateral mobility ecosystem and one of the most important real-world cases of tokenized financial infrastructure — The Block
Ethereum's Glamsterdam upgrade, bringing enshrined PBS and block-level access lists, will hit the Hoodi testnet on October 26 and lift its gas limit to 200M, with no mainnet date yet — Ethereum Foundation
Aero, the merger of Aerodrome and Velodrome, launches October 21 across 7 networks, with staked AERO earning all exchange revenue and buybacks to limit dilution — Aero
Tether says its wallet freezes cut Iran-linked stablecoin volume by 94% since 2023, hitting addresses about four weeks before US and Israeli sanctions, pushing back on Senator Blumenthal's report — crypto.news
Mt. Gox's trustee pushed the creditor repayment deadline back by another year to October 31, 2027, with about 34,000 BTC still left to distribute — CoinMarketCap
US spot bitcoin ETFs took in $526.6M on Monday, their biggest day in nearly a month, as BlackRock's IBIT drew $665.2M while Fidelity and Grayscale saw outflows — CoinDesk
Upbit listed Metaplex (MPLX) on its KRW market, with trading opening October 20 at 18:30 KST and deposits and withdrawals only via Solana — ChainCatcher
Bitget agreed to buy licensed Thai crypto exchange GMO-Z.com Cryptonomics from Japan's GMO Internet, entering Thailand weeks after a $388M hack, pending regulatory approval — Investing.com
France's National Assembly voted 38-37 to tax crypto-to-stablecoin swaps at the 31.4% capital gains rate from January 2027, ending tax deferral for MiCA stablecoins — CoinDesk
Hacker group FulcrumSec claims a 10.6TB data breach at TiDB database maker PingCAP, with Bitget and Pionex customer information reportedly among the stolen data — Breachsense
FreedomXMR, a new laundering service on Hyperliquid Core, has moved $20M+ tied to hacks and ransomware into Monero, with over 87% of inflows linked to illicit activity — ZachXBT
Swiss regulator FINMA approved the country's first Swiss-law retail fund investing directly in bitcoin, exempting it from diversification rules but requiring custody safeguards and loss warnings — FINMA
Microsoft, Alphabet and Goldman Sachs objected to tokenized versions of their shares trading on OKX and ICE's OKXICE venue, lifting the list of objecting issuers to 16 — CoinDesk