Docomo SMTB Bank and Monex Securities Launch New Functionalities for Enhanced User Experience

Introduction

In an era where seamless financial services are essential, Docomo SMTB Bank and Monex Securities have announced a partnership set to transform the way customers manage their finances. Beginning August 28, 2026, both institutions will introduce an automated deposit (sweep) service, designed to address moments when transaction funds may fall short, and allow simultaneous account opening for bank and securities accounts.

Automated Deposit (Sweep) Service

The automated deposit service offers peace of mind for investors by automatically transferring necessary funds from their Docomo SMTB bank account to their Monex Securities account when trading domestic stocks or mutual funds. This feature is available at no cost, providing a seamless transaction experience 24/7, excluding maintenance periods.

Furthermore, customers can complete their applications for both bank and securities accounts online through each institution’s website. For those who establish a bank account concurrently with their securities account, this service is pre-set, ensuring that no additional steps are required.

Simultaneous Account Opening

In a bid to simplify the account setup process, customers can now apply for a Monex Securities account while opening their Docomo SMTB bank account. This initiative is aimed at reducing the hassle of separate applications and enhancing the overall customer journey. A feature enabling simultaneous applications for a Docomo SMTB bank account when opening a Monex Securities account is slated for launch soon, further streamlining the process.

Special Branch Names

Unique branch names inspired by fruits, sweets, and sea creatures underscore the partnership’s innovative approach. Customers can engage with services at branches like the Strawberry Branch (101) or the Whale Branch (403), symbolizing a fresh and engaging banking experience.

Background of This Initiative

This initiative follows a business partnership formed between NTT Docomo, Docomo SMTB Bank, and Monex Securities in December 2025. By combining the capabilities and expertise of these three companies, the aim is to establish a more user-friendly financial ecosystem known as "gentle finance,” facilitating smoother transactions between banking and securities services.

The launch of such functionalities is expected to enhance access to funds and streamline processes for users, ultimately easing financial management through the automation of necessary transactions.

Expanded Benefits with d Cards

Users who utilize dCards in conjunction with Docomo SMTB Bank and Monex Securities may enjoy enhanced rewards. Setting up the Docomo SMTB Bank account as a direct debit for dCards can lead to increased cashback rates for certain transactions, reflecting the institutions’ commitment to providing value-added services to its customers.

For those who configure their dCards with the securities account's automated deposit settings, there exists an opportunity for higher reward rates, making everyday transactions even more rewarding.

Company Overviews

Docomo SMTB Bank

Located at 2-1 Roppongi 3-chome, Minato-ku, Tokyo, Docomo SMTB Bank is led by CEO Noriaki Maruyama and was established in June 1986, obtaining its banking license in September 2007.

Explore more about their services on the Docomo SMTB Bank corporate site.

Monex Securities

At 12-32 Akasaka 1-chome, Minato-ku, Tokyo, Monex Securities has been a cornerstone in Japan’s financial sector since May 1999, under the leadership of President Yuko Kiyome. The firm is regulated by the Kanto Financial Bureau.

Discover further details on their offerings at the Monex Securities corporate site.

Conclusion

As Docomo SMTB Bank and Monex Securities deepen their collaboration, the goal remains to provide a more convenient, user-friendly financial service to meet the evolving needs of customers. The combination of technology, extensive product offerings, and a focus on customer-centric services bodes well for the future of financial operations in Japan.