Investors will have dominant telco Spark New Zealand to use as a benchmark for Vodafone NZ.
5G technology will need a commercial fibre product to connect large commercial users to the network.
The rise was also due to a shrinking finance bill.
Investors still need a little convincing.
Spark has been trying to reduce its reliance on Chorus's network.
Auckland-based Spark has signed a conditional agreement to buy Ubiquity.
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