What is the primary function of SWIFT in the financial services industry?

The primary function of SWIFT in the financial services industry is to provide a secure global messaging service that supports correspondent banking. SWIFT, which stands for the Society for Worldwide Interbank Financial Telecommunication, facilitates the exchange of financial messages between banks and financial institutions globally. This network allows banks to communicate transaction details securely and efficiently, including payment instructions, confirmations, and other financial messages.

SWIFT does not trade stocks or provide investment platforms; its focus is entirely on secure communication. Additionally, it does not offer software for managing personal finances or services for online personal banking, as these functions fall outside the scope of its messaging service designed for professional financial institutions. Therefore, understanding SWIFT's role as a communication facilitator highlights its importance in the functioning of international finance, making the correct answer clear.