Iwai Cosmo Holdings

Wiki route

This entry sits under securities-firms INDEX. Read it against Okasan Sg for peer / contrast context and securities index for the broader system / regulatory boundary.

TL;DR

A mid-tier independent securities holding company rooted in Osaka (TSE PRIME 8707). With its roots in Iwai Securities, founded in Osaka by Ujiro Iwai in 1918 年, it was formed in 2010-04 through the management integration of the former Iwai Securities and the former Cosmo Securities to launch Iwai Cosmo Securities, with Iwai Cosmo HD established the same month through holding-company conversion. As a mid-tier independent brokerage centered on face-to-face retail, it develops overseas brokerage of US stocks・emerging-market stocks, IPO underwriting, and consulting-style sales on a Kansai base. Competitors are mid-tier independent securities groups such as aizawa-sg / okasan-sg / tokai-tokyo-fh / matsui-sec.

1. Company overview

Legal name: Iwai Cosmo Holdings, Inc. (岩井コスモホールディングス株式会社) English name: Iwai Cosmo Holdings, Inc. Securities code: TSE PRIME 8707 Headquarters: Imabashi, Chuo-ku, Osaka City (lineage of the former Iwai Securities head-office location) Business type: holding company of a financial instruments business operator (independent・mid-tier securities) Holding-company conversion: 2010-04 management integration of former Iwai Securities + former Cosmo Securities → Iwai Cosmo Securities launched, with Iwai Cosmo HD established the same month

Main subsidiaries

Iwai Cosmo HD (holding company・listed 8707)
  ├── Iwai Cosmo Securities ── core operating company (merger of former Iwai Securities + former Cosmo Securities, 2010-04)
  │     ├── domestic equities (retail face-to-face・call center・online)
  │     ├── overseas equity brokerage such as US stocks・Chinese stocks・Asian emerging-market stocks
  │     ├── investment-trust・bond sales
  │     └── IPO underwriting・public-offering underwriting business
  ├── Iwai Cosmo Research ── investment-information・research subsidiary
  └── Iwai Cosmo Management Services ── back-office・commissioned operations

Former Iwai Securities (Osaka lineage・1918〜2010)

1918: Ujiro Iwai founded Iwai Securities (the predecessor stockbroking shop) in Osaka
Prewar: grew as a local broker in the Osaka securities industry
Postwar: incorporated, made a fresh start as a mid-tier brokerage rooted in Kansai
Heisei era: continued as a mid-tier independent brokerage centered on face-to-face retail, based in Kansai

Former Cosmo Securities (1923〜2010)

1923: predecessor (Kyoei Shoji lineage) established
Postwar: name changed to Cosmo Securities, grew as one corner of the major・semi-major firms
Daiwa Bank affiliate → later moved toward independent reorganization through management restructuring
2000 年s: came up as a sale candidate due to business difficulties

Integration・holding-company conversion (2010)

2010-04: management integration of former Iwai Securities + former Cosmo Securities → Iwai Cosmo Securities launched
Same 2010-04: adopted the holding-company method → Iwai Cosmo Holdings established, listed on the TSE and elsewhere

Key chronology (excerpt)

Date	Event
1918	Ujiro Iwai founded Iwai Securities (predecessor) in Osaka
1923	Cosmo Securities predecessor established
Postwar	former Iwai Securities・former Cosmo Securities each incorporated・expanded nationwide
Late 2000s	discussion of reorganization in the mid-tier independent securities industry (including Cosmo Securities)
2010-04	management integration of former Iwai Securities + former Cosmo Securities → Iwai Cosmo Securities launched / holding company Iwai Cosmo HD established
2010s	strengthened the face-to-face retail base as a mid-tier independent brokerage rooted in Kansai
First half of the 2020s	expanded handling of US-stock・overseas-stock brokerage (countering online competitors)
2024	medium-term management plan formulated

2. Business segment map

Segment	Main operators	Characteristics
Domestic retail (face-to-face)	Iwai Cosmo Securities	core business, face-to-face sales on a Kansai base
Domestic retail (online・call)	Iwai Cosmo Securities	also supports trading via online・call center
Overseas equity brokerage	Iwai Cosmo Securities	US stocks・Chinese stocks・Asian emerging-market stocks, etc.
IPO・underwriting	Iwai Cosmo Securities	participates in regional-company IPO underwriting as a mid-tier independent brokerage
Research	Iwai Cosmo Research	investment information・research reports
Back-office・administration	Iwai Cosmo Management Services	commissioned operations・group administration functions

Basic strategy

Kansai base × face-to-face retail: headquartered in Osaka, with face-to-face sales to Kansai’s affluent individuals・SME owners at its core
Agility of an independent: as an independent not belonging to a megabank affiliate・major-securities affiliate, it touts the independence of product selection・management policy
Strengthening overseas-stock brokerage: building out a product lineup of US stocks・emerging-market stocks to counter online brokers
Consulting-style sales: a shift from simple trade brokerage to an asset-management-proposal type

Competitive position

The cluster of mid-tier independent brokerages is as follows (each with its own history and base):

aizawa-sg Aizawa Securities G — Tokyo base, strong in Asian stocks・emerging-market stocks
okasan-sg Okasan G — founded in Nagoya, Tokai base
tokai-tokyo-fh Tokai Tokyo FH — Tokai base, Chubu business-community affiliate
matsui-sec Matsui Securities — independent online brokerage・pioneer
Iwai Cosmo HD — Kansai base, centered on face-to-face retail

Compared with megabank affiliates (securities firms under mufg / smfg / mizuho-fg) and major online firms (sbi-hd / Rakuten Securities, etc.), while inferior in scale, it uses regional closeness・face-to-face proposal capability・the flexibility of an independent as its axes of differentiation.

Medium-term plan (2024)

Announced a medium-term management plan in 2024 年 . For specific numerical targets, refer to the official IR materials (this note is based on Wikipedia).

4. Regulation・policy

Supervisor: Financial Services Agency (FSA) — Financial Instruments and Exchange Act
Industry body: member of the Japan Securities Dealers Association (JSDA)
Exchanges: participant in various exchanges such as the Tokyo Stock Exchange・Osaka Exchange
Recent policy issues:
- 2024~ enforcement of the new NISA system → intensified account-acquisition competition among retail securities firms
- 2025~ digitalization・cost-structure rebuilding challenges for mid-tier independent brokerages
- 2026~ the direction of strengthening customer-first principles (Fiduciary Duty) for financial instruments business operators

aizawa-sg · okasan-sg · tokai-tokyo-fh · matsui-sec — mid-tier independent securities cluster
mufg · smfg · mizuho-fg — contrast with megabank-affiliated securities
sbi-hd — contrast with major online firms

Sources

Wikipedia: 岩井コスモホールディングス / 岩井コスモ証券 (extracted 2026-05-19)
Iwai Cosmo HD official corporate site・history

[!info] 検証状況 confidence: likely (v1 based on Wikipedia + official history, organized 2026-05-19). Medium-term plan details・latest performance figures・number of branches, etc., have not been surveyed in this note. For the latest figures, refer to Iwai Cosmo HD IR disclosure materials.