ASX set for worst week in seven on regulatory scrutiny

** ASX ASX slips 4.3% so far this week; set for worst week since early August

** On Wednesday, RBA said market operator's clearing and settlement units fell short of key regulatory standards after trading settlement failure in December 2024; warned ASX to improve units

** Morgan Stanley sees limited FY26 growth, cost headwinds for co; adds co faces risk of further regulatory scrutiny around its return profile

** Stock fell 1.2% on Wednesday, has lost 1.7% since

** ASX last down 0.5%, taking YTD losses to 9.6%