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Overview
Securities and Commodities Futures

Simplex Financial Holdings Co.,Ltd.

Simplex Financial Holdings is a holding company for a group of asset management and financial services firms in Japan. Its core subsidiary, Simplex Asset Management Co., Ltd., provides investment management services, while Simplex Capital Investment Co., Ltd. handles investment-related activities. The group also operates in Hong Kong through Simplex Asset Management (Hong Kong) Company Limited, reflecting a selective international presence.

Market Cap
¥—B
EV
¥—B
Stock¥757▲+63.15%
US$1 = ¥156.80 (2026-10-23)
ROE
—
* LTM NI / end-of-period equity
PBR
—
Stock vs TOPIX (1Y, base=100)vs TOPIX ▲+48.6%pt
100
Jan 7, 26 – Jul 9, 26StockTOPIX
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Performance & Balance
Revenue 5Y (¥B)
15.0US$95.5M'24/316.3US$104M'25/322.5US$144M'26/3
Net Income 5Y (¥B)
6.61US$42.1M'24/37.06US$45.0M'25/310.6US$67.8M'26/3
Shareholders
Top 10 hold 100.0%
as of 2026-03-31 · Source: Annual Securities Report
1
Simplex Stock Ownership Association
42.70%
2
Hiromasa MIZUSHIMA
40.00%
3
OFFICE M Co., Ltd.
10.00%
4
SIMPLEX Co., Ltd.
6.80%
5
BSM Co., Ltd.
0.50%
Management
5 officers
Hiromasa MIZUSHIMA
Representative Director, President
Apr. 1977: Joined Nikko Securities Co., Ltd. (now SMBC Nikko Securities Inc.) / Mar. 1998: Deputy General Manager, Financial Institutions Division Product Headquarters, same company / Mar. 1999: Co-Head & Managing Director, Equity Division, Nikko Salomon Smith Barney (now Citigroup Securities Inc.) / Sep. 2004: Managing Executive Officer, Nikko Citigroup Securities Co., Ltd. (now Citigroup Securities Inc.) / Oct. 2005: Representative Director & President, Simplex Asset Management Co., Ltd. (current) / Oct. 2006: Representative Director & President, the Company (current) / Jan. 2010: Director, Simplex Asset Management (Hong Kong) Company Limited (current) / Aug. 2022: Representative Director & President, Simplex Capital Investment Co., Ltd. (current) / Aug. 2026: Director, Simplex Heritage Co., Ltd. (current)
1954-11-15
Takashi SHIROTA
Director
Apr. 1982 Joined Nikko Securities Co., Ltd. (now SMBC Nikko Securities Inc.) / Mar. 1999 Transferred to Nikko Salomon Smith Barney (now Citigroup Securities Inc.) / Sep. 2009 Representative Director, JET Academy Inc. / Jun. 2010 Director, Simplex Asset Management Co., Ltd. / Jun. 2014 Director, the Company (current) / Apr. 2015 Outside Director, Imura Envelope Co., Ltd.
1959-11-30
Yoshihiro MIKAMI
Director
Apr. 1983: Joined Citibank Tokyo Branch / Sep. 1995: Managing Director, Salomon Brothers Tokyo Branch / Sep. 1997: Representative Director, Simplex Technology Co., Ltd. (now Simplex Inc.) / Nov. 1999: Representative Director, Simplex Asset Management Co., Ltd. / Dec. 2016: Director, the Company (current)
1958-10-08
Naoto MIYASHITA
Director
Apr. 1981: Joined Ishikawajima-Harima Heavy Industries Co., Ltd. / Jul. 1987: Joined Nomura Securities Co., Ltd. / Jun. 1993: Joined Union Bank of Switzerland / Aug. 1996: Joined Bankers Trust Asia Securities / Apr. 1998: Joined Credit Suisse First Boston Securities / Dec. 1999: Joined Nikko Salomon Smith Barney Securities Co., Ltd. (now Citigroup Securities) / Jul. 2009: Joined Nomura Holdings, Inc. / Jun. 2012: Executive Officer & Group Chief Compliance Officer, Nomura Holdings, Inc. / Jun. 2016: Director & Standing Audit Committee Member, Nomura Holdings, Inc. / Aug. 2023: Director, the Company (current) / Jun. 2024: Representative Director, Simplex Capital Investment Co., Ltd. (current)
1958-12-26
Kazuo ISHIGE
Audit & Supervisory Board Member
Apr. 1999: Attorney, Asahi Law Office / Jul. 2003: Joined Industrial Revitalization Corporation of Japan / Jun. 2007: Audit & Supervisory Board Member, the Company (current) / Jun. 2007: Audit & Supervisory Board Member, Simplex Asset Management Co., Ltd. (current) / Jan. 2011: Partner Attorney, Hokuto Sogo Law Office (current) / Aug. 2022: Audit & Supervisory Board Member, Simplex Capital Investment Co., Ltd. (current)
1969-05-25
Large Shareholding Reports
No filings
Disclosures
No disclosures
Primary Source Filings
TDnet
2026-06-29
発行者情報
FY ending Mar 2026
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