Is ChatGPT owned by Microsoft?

Could you clarify whether ChatGPT is indeed a possession of Microsoft? This query is prompted by my recent interest in the realm of artificial intelligence and its integration with corporate entities. Given your expertise in the field of cryptocurrency and finance, I believe you may have insights that could shed light on this matter. I'm particularly interested in understanding the potential business implications of such a partnership, if indeed one exists. Your thoughts and explanations would be greatly appreciated.