Securities Records All-Time High in New Account Openings in January 2026

Announcement of Group Company's Release

TOKYO, February 6, 2026 - Monex, Inc., a group company of Monex Group, Inc., issued the following press release.

Attachment: Monex, Inc. press release

Monex Securities Records All-Time High in New Account Openings in January 2026

~ Driven by customer base expansion through NTT DOCOMO collaboration ~

Contact: Akiko Kato, Mina Watanabe Corporate Communications Office Monex Group, Inc.

+81-3-4323-3983

Eichi Inada, Taishi Komori, Yuho Matsuura Investor Relations, Financial Control Department Monex Group, Inc.

+81-3-4323-8698

This material is an English translation of a Japanese announcement made on the date above. Although the Company intended to faithfully translate the Japanese document into English, the accuracy and correctness of this English translation is not guaranteed and thus you are encouraged to refer to the original Japanese document. This translation was made as a matter of record only and does not constitute an offer to sell or to solicit an offer to buy securities in the U.S.

Press Release

Monex, Inc. (Headquarters: Minato-ku, Tokyo; Member of the Board, President and Executive Director: Yuko Seimei; hereinafter "Monex Securities") announces that its monthly new account openings for January 2026 exceeded 47,000 accounts, setting a new record high*.

Monex Securities was founded in 1999 with the mission of "democratizing investment." Its founding principle was to make the world of finance, previously accessible only to institutional investors and a select few affluent individuals, widely available to individual investors.

For 25 years since its founding, Monex Securities has prioritized its "customers" above all else. Since 2020, it has advocated the "Asset Gathering Model," which places the utmost importance on growing customers' assets, moving away from a business model dependent on transaction frequency. Since January 2024, under a capital and business alliance with NTT DOCOMO, Inc. (Headquarters: Chiyoda-ku, Tokyo; President and Chief Executive Officer: Yoshiaki Maeda; hereinafter "DOCOMO"), we have jointly developed an environment where customers can engage with asset building through touchpoints closer to their daily lives. Furthermore, coinciding with the launch of the new NISA in January 2024, we have expanded services for NISA users. We believe these initiatives are perceived as attractive by our customers, leading to an increase in account openings. Moving forward, we will continue to provide products and services that customers choose, including the planned full-scale launch of services leveraging our collaboration with DOCOMO and Sumishin SBI Net Bank, Ltd. (hereinafter "Sumishin SBI Net Bank") scheduled for August this year.

*Since Monex Securities' founding in 1999. Excludes months with special factors due to mergers with other companies or account transfers.

• Our Partnership with DOCOMO

  Monex Securities and DOCOMO jointly develop and provide various services to customers. These initiatives have also served as catalysts, leading to a steady increase in account openings.

  July 2024: Launched periodic purchasing plan for mutual funds using d CARD

  We launched periodic purchasing plan for mutual funds using d CARD. This convenient and rewarding system, offering up to 3.1% d Points back on monthly purchase amounts, has gained customer support, and the number of users is steadily increasing.

  September 2024: Enabled linkage between the general securities trading account and d ACCOUNT

  We enabled linking between Monex Securities and d ACCOUNT. This allows customers to earn d Points through transactions at Monex Securities and use d Points to purchase mutual funds. By linking a general securities trading account with a d ACCOUNT, customers earn d Points instead of Monex Points and can use d Points to purchase mutual funds.

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  July 2025: Launch of "Easy Asset Management"

  Through DOCOMO's d Payment app, customers can easily open a general securities trading account with Monex Securities and apply for periodic purchasing plan for mutual funds. Since its launch, account openings via this service have significantly contributed to Monex Securities' overall account growth.

• Further Service Expansion Through Three-Way Partnership with SBI Sumishin Net Bank In August 2026 (planned), we will launch full-scale services leveraging the business partnership between Monex Securities, DOCOMO, and SBI Sumishin Net Bank.

Monex Securities will continue to consistently support our customers' asset building by proposing financial services tailored to each individual's life stage

*"d Payment," "d ACCOUNT," and "d CARD" are registered trademarks of NTT DOCOMO, INC.

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