OpenAI released GPT-6 Sol and GPT-6 Luna on Tuesday (an OpenAI tweet dated September 22, 2026), minutes after Anthropic launched Claude Opus 5.5, cutting their API prices in half versus GPT-5.6's promotional rates; OpenAI says its internal coding-deception rate fell to 1.3% for Sol and 2.8% for Luna, both far below GPT-5.6 Sol's 10.4%.

Bitcoin Cash gained 14% in the hour CME Group said it would list futures on the token and kept climbing through the afternoon, finishing the session up 27% on more than twice Monday's volume. Bitcoin SV rose 20% alongside it, while Uniswap, named in the same release, spiked 11% and gave the whole move back.

The Securities and Exchange Commission today censured New York-based broker dealer OTC Link LLC and ordered it to pay a $575,000 civil penalty for longstanding violations of Regulation Systems Compliance and Integrity (SCI).

CME Group said Tuesday it plans to launch Bitcoin Cash and Uniswap futures on October 19, pending regulatory review, in both standard and Micro contract sizes. Standard Bitcoin Cash futures will represent 250 BCH (Micro: 25 BCH), while Uniswap futures will cover 10,000 UNI (Micro: 1,000 UNI).

If regulatory review clears on schedule, the two contracts would become CME's tenth and eleventh single-asset crypto futures products. Volatility Shares CEO Justin Young called the addition "another important step in the continued expansion of CME Group's crypto futures offering," and Ripple Prime president Noel Kimmel said institutions managing crypto exposure "need around-the-clock access to regulated derivatives."

CME said its crypto futures and options averaged 279,800 contracts traded daily in the first half of 2026, worth $8.3 billion in notional volume, with average open interest of 264,600 contracts, or $15.4 billion. Its 2026 launches of Cardano, Chainlink, Stellar, Avalanche and Sui futures have generated more than $1 billion in total notional value year-to-date, the exchange said.

The European System of Central Banks (ESCB) — the ECB and EU national central banks — called for removing MiCA's requirement that at least 30% of stablecoin reserves, or 60% for significant stablecoins, be held as bank deposits. The proposal came in the ESCB's response, published Tuesday, to the European Commission's review of the Markets in Crypto-Assets Regulation, and instead backs minimum liquidity thresholds for reserve assets maturing within one and five working days.

The ESCB argued that the existing rule “creates a direct link between issuers and credit institutions,” and that a stablecoin run could force an issuer to rapidly withdraw deposits and create liquidity problems for a bank, particularly if stablecoin reserves are a significant share of its funding. The proposal echoes concerns raised by parts of the stablecoin industry, including Tether CEO Paolo Ardoino, who said Tether refused an EU license over the same clause.

Instead of bank deposits, the ESCB pointed to overnight reverse repurchase agreements (repos) and short-term sovereign bonds as alternative instruments issuers could use, citing European Banking Authority draft rules from 2024 that require significant stablecoins to hold at least 40% of reserves in assets maturing within one working day and 60% within five working days, with thresholds of 20% and 30% for non-significant tokens. The ESCB also warned of “material challenges” in enforcing MiCA, saying non-compliant crypto companies can still access EU customers.

On Sep 21, Coinbase reported a site performance incident affecting its web and mobile services, warning that customers may be unable to buy, sell, trade, or view balances on multiple services. The exchange said a fix was implemented at 17:23 PDT and marked the incident resolved at 17:31 PDT.

While the incident was open, some customers were unable to place trades or view their balances, although Coinbase stated that customer funds were safe.

The incident was first flagged at 16:21 PDT as under investigation, updated at 16:58 PDT that investigation was continuing, and moved to monitoring at 17:23 PDT before being resolved at 17:31 PDT.