Is ACX owned by Amazon?

I'm curious to know, is ACX actually owned by Amazon, the tech giant that dominates e-commerce and cloud computing? It's a question that's been floating around in the cryptocurrency and finance community, given the similarities in branding and the fact that Amazon has made forays into the digital currency space. But is there any truth to the rumor, or is ACX an independent entity operating in its own right? I'd love to hear some clarity on this matter.