Westpac (WBC) –0.85% ; just when it started to look like the storm had passed, the bank was hit with another issue today similar to what happened with CBA after their Austrac run in. APRA has forced Westpac to hold an additional $500m operational risk capital while it reviews the bank's governance, accountability and culture and examines the steps taken to strengthen risk governance in recent years. The investigation will ensure Westpac is on the right path and will ultimately ensure these issues aren't an ongoing concern for the market – but the $500m additional capital will hit the CET1 ratio by 16bps in the meantime. Not a major issue, but still a negative all the same.