Wrangling ideas for
better banking

Everything you wanted to know about SPDIs but were afraid to ask

As cryptocurrencies become knit into the fabric of global finance, there’s an urgent need for banks that can handle both digital and traditional assets in a safe, sound, and secure manner. Wyoming led the nation in creating a regulatory framework that allows Special Purpose Depository Institutions (SPDIs) to serve precisely that need.

Many in Washington, D.C. and elsewhere are wrestling with what this all means – and importantly, how best to provide appropriate oversight. There’s growing recognition that policymakers can’t just sit on their hands as digital assets grow in importance and adoption. However, some of the fundamentals around cryptocurrency and digital asset banking remain deeply misunderstood.

As one of the first institutions in the country to successfully obtain a charter under the SPDI framework, Custodia will clear up any lingering confusion around SPDIs and the statutes and regulations under which they operate.

Here are the facts:

SPDIs are banks

SPDIs are sometimes described as “bank-like” or “bank-lite.” Not the case. SPDIs are banks under state and federal law. The SPDI charter is a bank charter – specifically, a depository institution, which is a distinction that unlocks certain regulatory benefits and obligations.

What’s more, the Federal Reserve Bank of Kansas City acknowledged Custodia’s status as a depository institution. So did the American Bankers Association (ABA) – in fact, Custodia received its ABA routing number earlier this year, a critical step achieved only once the ABA and a Federal Reserve Bank confirm an applicant’s eligibility – as a depository institution.

The Federal Reserve has proposed a process to weigh how it might fold SPDIs and similar institutions into the existing Federal Reserve payment system. Custodia has publicly expressed its support for regulation in various forms, including its comment letter to the Federal Reserve in connection with its Proposed Guidelines for Evaluating Account and Services Requests.

SPDIs don’t take risks; they tame them

Amid stereotypes suggesting all cryptocurrency or fintech is awash with speculation and risk-taking – some of which is accurate – SPDIs stand out: SPDIs are at their foundation a secure, stable, regulatory-compliant bridge between digital assets and the U.S. dollar payment system. We are subject to the same capital requirements as traditional banks, with Wyoming’s banking laws, rules and regulations for SPDI charters holding us to Tier 1 capital requirements identical to federal standards for conventional banks – but holding us to far greater standards for digital asset custody. SPDIs are not only held to the same rules binding traditional banks that require prompt corrective action should they show indicators of weakness, but are also required to have “living wills” (just like America’s biggest banks have, but the vast majority of banks do not).

Custodia goes even further, because it is subject to both Wyoming law and Federal Reserve membership requirements. This means Custodia will be required to hold a minimum of $1.08 in cash and short-term high-quality liquid assets such as T-Bills to back each $1.00 of customer deposits during its first three years as a Fed member bank.

Unlike traditional banks, SPDIs will not take either credit risk or interest-rate risk with customer deposits. Betting their customers’ money on shoddy assets is how banks fail. With SPDIs, this is a structural impossibility. For all these reasons, SPDIs are in fact far less risky than traditional fractionally reserved banks.

“Crypto bank” is a misnomer

It’s convenient shorthand for SPDIs, and we may even be guilty of using the phrase ourselves from time to time. But some bad-faith actors have muddied the waters by suggesting or implying that, as “crypto banks,” SPDIs will engage in practices that we in fact will not and cannot.

We do not, for instance, take cryptocurrency deposits on our balance sheets. We are prohibited by state and federal law from doing so, and the misperception that we have any plans to do so fundamentally misunderstands the SPDI model. In fact, Custodia intends to provide custody services for digital assets, just as a securities custodian does for securities.

Custodia, along with our partners and peers, are thrilled to be building something that can solve a central dilemma facing the digital asset industry — namely, how to fit together this dynamic space that moves at lightning speed with the tested regulatory framework covering U.S. banks. But to get it right, the industry, Washington and statehouses around the country need a shared understanding rooted in a common set of facts. As those committed to regulatory compliance and permission-not-forgiveness at the heart of our work, we’re pleased and honored to share what we know to be true.

Is Custodia a Bank?

Yes – Custodia is a state-chartered bank under Wyoming’s special purpose depository institution (“SPDI”) law. As a depository institution, Custodia meets the definition of a bank under state and federal law.

How is Custodia Regulated?

Custodia is a state-chartered U.S. bank, regulated by the Wyoming Division of Banking, and Custodia has also applied to become a Federal Reserve Member Bank – which, if granted, would make it also regulated by the Federal Reserve. Custodia is not yet operating.

Custodia is subject to the same standards that govern all banks, including bank-level capital requirements and bank-level compliance requirements (including the higher standard that applies to banks called the “Customer Due Diligence Rule”). Additionally, as a regulated bank, Custodia will be subject to frequent supervisory examinations that may not apply to non-banks.

Are Deposits at Custodia Insured?

No, deposits with Custodia are not FDIC-insured. However, Custodia must comply with all SPDI reserve requirements, which ensures the safety of customer deposits.

Who is Behind Custodia?

Executive Team

Custodia’s executive team brings decades of experience and expertise across both traditional finance and digital assets. Caitlin Long and Zev Shimko, CEO and President/COO, respectively, worked together for their corporate clients at Morgan Stanley in New York. The executive team has prior experience at firms regulated by the Federal Deposit Insurance Corporation (“FDIC”), the Securities Exchange Commission (“SEC”), Financial Industry Regulatory Authority (“Finra”), New York State Department of Financial Services (“NYDFS”), Financial Crimes Enforcement Network (“FinCEN”), and more.


Custodia is backed by world-class investors, including a mix of institutions, digital asset companies and family offices. For more information about Custodia’s most recent raise, please visit here.

Would Custodia Expose the U.S. Banking System to Digital Asset Risk?

No. Custodia plans to hold all customer deposits of U.S. dollars in cash. It plans to hold no digital assets for its own account, which means it is not exposed to the price volatility of digital assets. When holding digital assets on behalf of a customer, it will do so in its trust department rather than for its own account. In other words, Custodia does not expose the U.S. banking system to digital asset risk, as Custodia would only handle U.S. dollars on its balance sheet.