Aug 24 (Reuters) - Westpac Banking Corp WBC.AX :
* NET INTEREST MARGIN IN JUNE QUARTER 2018 WAS 2.06% COMPARED TO 2.17% IN FIRST HALF 2018
* COMMON EQUITY TIER 1 CAPITAL RATIO OF 10.4% AT 30 JUNE 2018
* Q3 MORTGAGE DELINQUENCIES IN AUSTRALIA WERE UP 3BPS
* QTRLY CREDIT QUALITY HAS CONTINUED TO BE SOUND WITH STRESSED ASSETS TO TOTAL COMMITTED EXPOSURES DOWN 1BP FROM 31 MARCH 2018 TO 1.08%