Is BCH a security?

Excuse me, could you please clarify for me whether BCH qualifies as a security? I've been hearing differing opinions on this matter, and I'm trying to get a clearer understanding. As a professional in the field of cryptocurrency and finance, your insight would be invaluable. Could you elaborate on the characteristics that define a security and how BCH aligns or differs from those? I'm particularly interested in how its structure, functionality, and regulatory treatment might factor into this classification. Thank you in advance for your assistance.