K33Research flags Coinbase One mortgages

K33 Research used a September 1 social-media post to tie together several crypto-industry developments that had surfaced separately in recent months: Coinbase’s push into mortgage-linked lending for Coinbase One users, new discussion around U.S. crypto custody rules, Charles Schwab’s widening digital-asset offering, and lower near-term bitcoin sale pressure from Strategy. The post did not announce new products of its own. It served as a map of where crypto infrastructure is moving across retail brokerage, housing finance, custody and treasury management. The most concrete consumer-facing item in that list is the Coinbase mortgage product. On March 26, Coinbase said it was working with Better to power “the first crypto-backed, conforming mortgages,” with loans originated and serviced by Better and backed like other conforming mortgages through Fannie Mae standards. Coinbase said approved Coinbase One members could be eligible for up to $10,000 in closing-cost credits and could use bitcoin held in Coinbase accounts to help fund cash down payments without first liquidating those holdings. (coinbase.com) ### What exactly did K33 point to on Coinbase mortgages? Coinbase’s March 26 post described the product as a way for Coinbase One members to pledge crypto wealth in the underwriting process rather than sell it first. The company said the structure is offered by Better, while Coinbase provides the crypto link that lets borrowers use digital assets tied to their Coinbase accounts in the transaction flow. (coinbase.com) Banking Exchange reported the program became generally available to eligible Coinbase One members in the United States this week. That report said borrowers can pledge bitcoin or USDC for a separate loan that funds the down payment on a conforming mortgage. ### Why was the SEC custody issue in the same list? The SEC material linked to this theme is not a final rule. (coinbase.com) A framework posted on the SEC website under the crypto task force’s written submissions argues for updating the Custody Rule so registered investment advisers could safeguard client crypto assets using both qualified-custodian and non-qualified-custodian arrangements under a reasonableness standard. (bankingexchange.com) The document says that approach would reduce operational frictions and concentration risk while trying to preserve segregation, safeguarding and independent verification. In plain terms, that makes custody a live policy issue again for firms trying to build mainstream crypto services. That characterization is an inference from the SEC submission and the recent expansion efforts by brokerage and exchange platforms. (sec.gov) ### What did Schwab actually announce? Charles Schwab said on August 27 that Schwab Crypto clients will, “in the coming months,” be able to buy and sell solana, avalanche and chainlink. Schwab Crypto began rolling out in May 2026 and already offered direct trading in bitcoin and ether, according to the company. (sec.gov) Joe Vietri, head of digital assets at Charles Schwab, said the expansion would give clients more choices to build a digital-asset allocation alongside Schwab’s broader investing and banking services. Schwab also said it plans to add more cryptocurrencies and digital assets over time. (pressroom.aboutschwab.com) ### What does “declining BTC sales risk” at Strategy refer to? Strategy’s recent filings and investor materials show the company has added cash-management flexibility alongside its bitcoin-heavy balance sheet. An August 24 SEC filing said the company established “USD Cash” as a new component of its Digital Credit Capital Framework to respond more quickly to market conditions, including dislocations in bitcoin or Strategy securities. (pressroom.aboutschwab.com) Strategy’s investor dashboard on September 2 showed about $5.1 billion in USD reserve and $1.614 billion in USD cash, alongside 845,050 bitcoin held in reserve. K33’s reference to declining bitcoin sale risk appears to reflect that larger liquidity cushion, which could reduce the need for near-term bitcoin monetization. That reading is an inference based on Strategy’s disclosed reserve figures and framework updates. (sec.gov) ### So what is the thread connecting these items? September 2026’s through-line is that crypto firms and traditional financial companies are building more conventional wrappers around digital assets. Coinbase and Better are trying to connect crypto balances to mortgage finance. Schwab is widening direct crypto access inside a mainstream brokerage account. The SEC custody debate remains centered on how client assets can be held safely and compliantly. Strategy, meanwhile, is showing how a large corporate bitcoin holder is managing liquidity around that exposure. (strategy.com) The next concrete milestones are already dated. Schwab said the three added tokens will arrive in the coming months, while Coinbase and Better’s mortgage program is now being rolled out to eligible U.S. Coinbase One members, and any broader custody change would have to come through a formal SEC rulemaking process rather than a social-media post or staff submission. (pressroom.aboutschwab.com) (coinbase.com)