Here is a refresher of how Zenith came about, which may help to answer why Zenith's value keeps fluctuating. 

https://www.zenithepigenetics.com/about/FAQ

"Question: Since there is no public market for Zenith shares at this time, why has the value of my Zenith shares fluctuated in my brokerage account statement?

Answer: Some financial institutions present Zenith shares at a zero value due to their non-public trading status. Others value the Company’s shares based on an estimated fair market value calculated for financial reporting purposes, information from recent Company financings or their own practices. The values used by financial institutions are out of the Company's control."

Koo