Sangsangin Securities is a small-to-mid-sized brokerage that joined the Sangsangin Group in 2019, operating across four business lines: retail, investment banking (IB), wholesale, and asset management.
The controlling shareholder is holding company Sangsangin Inc., which owns a 55.85% stake, while Group Chairman Yoo Joon-won personally holds 5.1% and affiliate J-One Wide holds 3.81%, bringing the combined controlling shareholder stake to roughly 65%.
Unlike many peer brokerages of similar size, the company maintains a dedicated retail network in areas such as Bundang and Gangnam, and a newly launched next-generation mobile trading system (MTS) has been contributing to retail growth.
The firm has also been building presence in the bond underwriting market: in the first half of 2026 it underwrote 77 deals worth 1.29 trillion won in capital bonds and 32 deals worth 500 billion won in card bonds, and across the entire debt capital market including corporate and bank bonds it recorded 126 deals totaling 2.55 trillion won, an unusually large scale for a firm of its size.
The asset management division formed a new equity trading team during the 2026 first-half market expansion and adjusted position sizes to market conditions, posting the largest segment profit of 3.9 billion won in the second quarter.
The IB segment's improvement has been attributed to a recovery in project financing and corporate finance income. However, segment volatility is notable: wholesale saw revenue grow while profit declined, and asset management has swung into loss in certain periods.
The broader Sangsangin Group spans IT, finance, shipbuilding equipment manufacturing, and software development, but with savings bank affiliate sales already underway and now securities sale talks in progress, the group's overall financial business footprint could shrink further.