heating up, page-20

From my understanding of the Corporation Act 2001, options are excluded from Market Capitalisation - quoted below.
" (7) This is how to work out a disclosing entity’s market capitalisation on the relevant day:

(a) for each class of security of the disclosing entity that is a quoted security:

(i) work out the closing price, on the relevant day, for securities in that class on the prescribed financial market on which the securities are quoted; and

(ii) multiply that price by the number of securities in that class on issue on the relevant day (as shown in the financial report lodged with ASIC for the period that ends on the relevant day); and

(b) add up the amounts obtained under paragraph (a): the result is the disclosing entity’s market capitalisation on the relevant day.

Disregard quoted securities of the disclosing entity that are options."

So, for the purpose of your calculation, mitis, I would agree with you just to use the relevant option trading price.