“In short, the ATS will offer a legally approved, regulated alternative to a major securities exchange, such as the New York Stock Exchange and Nasdaq. As such, the platform may be seen as a major step forward for the token space. Simply put, there are currently no other regulator-approved ways for U.S. investors to trade security tokens.”
Read more: https://www.coindesk.com/regulated-icos-arrive-overstock-open-exchange-legal-token-trading/