A KiwiSaver provider has come under fire after one of its commissioned salespeople sent out an email dissing the track record of alternate providers ANZ and ASB.

Investors in a $286.2 million listed medical property business demanded information yesterday about a takeover by ANZ.

A raft of mortgage rate changes have been announced, affecting both the ANZ and National banks.

NZ's export commodity prices made their biggest monthly rise in 22 years last montth, rising 6.8 per cent from August, the ANZ Commodity Price Index shows.