In December #Circle稳定币支持股票帐户充值 2025, Interactive Brokers launched a stablecoin deposit function, supporting only the USDC stablecoin issued by Circle for funding securities accounts. This is an important integration of Circle's stablecoin with stock account deposits. The specific details are as follows:

1. Applicable Scope and Limits: This service is initially open to retail accounts in the U.S. with net assets exceeding $10,000, with plans to expand to Europe, Asia-Pacific, and other regions later. The single deposit limit is 100 - 100000 USDC, and the daily cumulative deposit limit is 200000 USDC, which can prevent risks of abnormal large fund flows.

2. Technical and Efficiency Advantages: The underlying support is provided by zerohash's cross-chain settlement system, allowing USDC deposits to be credited within seconds and not subject to the limitations of business days and cross-border settlement times. Compared to the traditional wire transfer cycle of 3 - 5 business days, this significantly improves efficiency and reduces Interactive Brokers' cross-border payment operational costs by about 25%, while also saving users 1.5% - 3% in wire transfer fees.

3. Supported Blockchain Networks: The transaction links for this deposit service cover the three major mainstream blockchain networks: Ethereum, Base, and Solana, with their respective transaction processing shares being 45%, 30%, and 25%, which can adapt to different users' on-chain operation habits.