How many block shares will exist?

I am confused after reading some of the white paper (read and perused) which to me suggests that 20 million shares will be issued. There are 188,102 listed on coinmarketcap at 6.xx. Why are they fetching such a premium? What am I missing? Thank you.

I found the answer here:

https://bitcointalk.org/index.php?topic=1033773.0

The total number of BlockShares on the blockchain and in circulation is 184,765.96 as of the end of fundraising on August 31, 2015. This amount can only be changed by the 0.01 BKS minting block reward, the variable reputed signer block reward we will soon add, and BKS grants approved directly by shareholders. We do not have the ability to create any additional BKS without shareholder consensus in the protocol.