options conversion to full share

  1. 9 Posts.
    I am new to shares and trying to get my head around how company issued options works and will appreaciate some education here.

    My question is: if I buy a company option at a market price on say commsec at 0.40c. If the initial issue price of the option is 0.10c and exercise price is 0.20c
    when the option expires, do I pay the balance of 0.10c on this option or do I have to pay the full 0.20c
 
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