Ontario Securities Commission | 29,075 followers on LinkedIn. We protect investors, maintain fair markets, promote capital formation, and support financial stability. | The Ontario Securities Commission administers and enforces securities law in the province of Ontario. The mandate of the OSC is to provide protection to investors from unfair, improper or fraudulent practices, to foster fair, efficient and competitive capital markets and confidence in the capital markets, to foster capital formation, and to contribute to the stability of the financial system and the reduction of systemic risk.