Is APMEX responsible for change in bitcoin exchange rate?

Excuse me, but I'd like to clarify something. In light of the recent fluctuations in the bitcoin exchange rate, I'm wondering if APMEX, as a reputable company in the finance and cryptocurrency space, has any direct responsibility or influence over these changes. Are their operations or policies in any way tied to the volatile nature of the bitcoin market? It's important for me to understand the extent of their involvement, if any, in order to make informed decisions regarding my investments.