Advertisement IMF Bentham, which is funding the case, said in an announcement to the Australian Securities Exchange a similar case against National Australia Bank Limited "has been the subject of settlement discussions", while cases against other banks, including Westpac Banking Corp and the Commonwealth Bank of Australia, have been stayed until a final decision is made in the ANZ case.
In the context of the input sentence, determine the relationship between 'Commonwealth Bank' and 'Australian Securities Exchange'.
Options: product/material produced, director/manager, stock exchange, original broadcaster