It should be accurate according to data on OTCMark
Post# of 75002
I think we may have underestimated the number of shares being held by long term investors. Once tucked away at the DTC, those shares are no longer in the public float until they decide to sell them.
Here is the Investopedia explanation of what the DTC is how it works: https://www.investopedia.com/terms/d/dtc.asp