The platform closing the deal to acquire Day Trading.
Google, which has struggled to make money with its mobile platform, announced the deal Wednesday.
The deal includes a $500 million cash dividend and a $300 million buyback.
The company, which announced in April that it would shut down its mobile app for business users, said it would create new products and services in partnership with a group of companies.
It said it plans to create new product categories for businesses, including enterprise software and mobile technology.
The Google-owned platform said in a statement that it plans “to make significant investments in the coming years to further drive growth and profitability” of the business, including creating new products.
Google said in the statement that Day trading “is the largest, most valuable and well-known marketplace in the world for consumers to buy and sell securities and financial instruments online.”
The company said it will invest $1 billion in the company.