The notional value of over-the-counter interest rate derivative contracts centrally cleared by The Australian Stock Exchange (ASX) was $380 billion in July, compared to $621 billion in the previous corresponding period (pcp).
The figures, released on 3 August, also found participant margin balances held on balance sheet at month-end totalled $9.0 billion in July 2018, compared to $6.4 billion in July 2017.
The value of securities held in Clearing House Electronic Subregister System (CHESS) was 16 percent higher than the pcp.
ASX also found the number of dominant settlement messages in July 2018 was 18 percent higher than the pcp.
The value of securities held in Austraclear was 5 percent higher than the pcp.
Overall, on-market average daily value stood at $3.9 billion, a change on pcp of 1 percent.
Total average daily value was $4.6 billion, a change on pcp of 2 percent.
Average value per trade stood at $4.03 billion, a decrease of 3 percent.
