The Office of the Comptroller of the Currency published Interpretive Letter 1188 confirming that a national bank may engage in riskless principal transactions in crypto-assets as part of the business of banking. In these transactions, the bank acts as principal in a crypto-asset trade with one customer while simultaneously entering into an offsetting transaction with another customer, serving as an intermediary without holding crypto-assets in inventory. The OCC emphasized that, as with any bank activity, these transactions must be conducted in a safe and sound manner and in compliance with applicable law.