What is the relationship between IRESS and Australian Securities Exchange in the context of the input sentence. Choose an answer from: product/material produced; manufacturer; distributed by; industry; position held; original broadcaster; owned by; founded by; distribution format; headquarters location; stock exchange; currency; parent organization; chief executive officer; director/manager; owner of; operator; member of; employer; chairperson; platform; subsidiary; legal form; publisher; developer; brand; business division; location of formation; creator.

BBY had about 1 per cent share of trading across the Australian Securities Exchange and Chi-X prior to being placed in voluntary administration, and accounted for 7 per cent of the local ETO market, according to IRESS data.

Answer: stock_exchange