Kingfish portfolio manager, Fisher Funds, has reported a gross performance return of 5.7% for July.
The company's adjusted net asset value (NAV) return was slightly lower at 5.6%.
The strong performance of New Zealand shares in July, with the S&P/NZX 50 gross index up 5.9%, was attributed to the Reserve Bank's "dovish" commentary and takeover interest in local companies.
However, Auckland Airport's share price declined 2% after the release of a draft report by the Commerce Commission.
Contact Energy also experienced a drop of 6% because of the impact of the gas shortage and low hydro lake levels.
Mainfreight's share price surged 12% despite reporting a disappointing trading update.
Summerset's shares significantly increased by 18% after a strong second-quarter sales update.
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