It’s been running for a few years: the widening spread between the cash rate and bank funding costs expressed through BBSW. This has led to impaired monetary transmission for the RBA as banks are forced to wither hike rates out of cycle, or not cut when it does.
Recent weeks have seen the spread compress to levels not seen in a while though banks are still out of the money, via Credit Suisse:
Westpac explains the spread compression by observing an abundance of cash at the moment:
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