1. Securities investment can provide underwriting, trading, brokerage, consulting and other services for fund companies, help fund companies issue, manage and sell fund products, and collect commissions or fees from them.

2. Securities investment can provide fund companies with services such as margin financing and securities lending, help fund companies improve the leverage and efficiency of investment, and collect interest or fees from them.

3. Securities investment can cooperate or compete with fund companies to develop or promote their own investment products and services, private equity funds, wealth management products, asset management plans, etc. And get income or market share from it. It shows that the relationship between fund management companies and securities investment funds is complex and close, and there are also concerns about mutual help and competition.