Market capitalization represents the public consensus on the value of a company. A corporation, including all its assets, may be freely bought and sold through purchases and sales of stock, which will determine the price of the company's shares. Its market capitalization is this share price multiplied by the number of shares in issue, providing a total value for the company's shares and thus for the company as a whole.
Number of shares issued, not fully diluted.
btw, these are trading shares. HISC's Preferred Shares are not sold on the market.