ASIC Commences Proceedings Against ISX and JK, page-580

Here is a global definition of revenue as determined by global accounting standards used by chartered accountants:

IAS18

That is the definition to use.

You would rather trust a company being litigated by the regulator for misleading the market?

Also, are you ever going to send an email to ISX asking about its relationship with Mastercard? Get the email and post it here. I am not going to do it because I don't need too.