Have to admit that the knowledge of 'dark pool' was just recently introduced to me. Still struggling to understand the mechanics. My post was merely a reflection of how so many factors enter into OTC's short count that, for the average trader like me, knowing how the number was developed or how accurate it is, should only be a 'moderate' consideration when deciding to buy a ticker. Impactful for sure, but substantive DD continues to be the real deciding factor.