---
title: "BNZ vs Mercer KiwiSaver: Which is more popular by branded search in New Zealand?"
description: "Which is more popular in search, BNZ or Mercer KiwiSaver? Compare estimated monthly branded-search demand and Share of Search inside the KiwiSaver providers set in New Zealand. Branded searches tell you how often people look for a brand by name or related terms. Comparing these searches across competitors helps you see how popular each brand is over time."
canonical: "https://gobrandwave.com/demand/nz/compare/bnz-vs-mercer-kiwisaver"
publisher: "Brandwave"
---

# BNZ vs Mercer KiwiSaver: Which is more popular by branded search in New Zealand?

Which is more popular in search, BNZ or Mercer KiwiSaver? Compare estimated monthly branded-search demand and Share of Search inside the KiwiSaver providers set in New Zealand. Branded searches tell you how often people look for a brand by name or related terms. Comparing these searches across competitors helps you see how popular each brand is over time.

## Key facts

- **Compared**: BNZ and Mercer KiwiSaver
- **Competitive set**: KiwiSaver providers
- **Market**: New Zealand
- **Month measured**: Aug 2026
- **BNZ Share of Search**: 7.4%
- **Mercer KiwiSaver Share of Search**: 0.18%

## Which is more popular in search, BNZ or Mercer KiwiSaver?

- In August 2026, BNZ had more branded searches than Mercer KiwiSaver among KiwiSaver providers in New Zealand. BNZ was estimated to have 153K branded searches compared to Mercer KiwiSaver’s 3.7K, and held a 7.4% Share of Search versus Mercer KiwiSaver’s 0.18%.
- BNZ was ahead of Mercer KiwiSaver in every measured month of the 11 months ending August 2026.
- Across the 11 months ending August 2026, BNZ’s estimated Share of Search among KiwiSaver providers in New Zealand moved from 6.6% to 7.4%, and its estimated monthly branded searches moved from 159K to 153K.
- Across the 11 months ending August 2026, Mercer KiwiSaver’s estimated Share of Search among KiwiSaver providers in New Zealand moved from 0.15% to 0.18%, and its estimated monthly branded searches held steady at 3.7K.

## How did search popularity change for New Zealand KiwiSaver providers in August 2026?

Neither BNZ nor Mercer KiwiSaver moved beyond provider rounding among KiwiSaver providers in Aug 2026.

## Month by month

| Month | BNZ estimated searches | BNZ Share of Search | BNZ rank | Mercer KiwiSaver estimated searches | Mercer KiwiSaver Share of Search | Mercer KiwiSaver rank |
| --- | --- | --- | --- | --- | --- | --- |
| Oct 2025 | 159K | 6.6% | 4 | 3.7K | 0.15% | 13 |
| Nov 2025 | 159K | 7.2% | 4 | 3.6K | 0.16% | 13 |
| Dec 2025 | 155K | 7.1% | 4 | 2.9K | 0.14% | 13 |
| Jan 2026 | 157K | 7.1% | 4 | 3.6K | 0.16% | 13 |
| Feb 2026 | 156K | 7.9% | 4 | 3.7K | 0.19% | 13 |
| Mar 2026 | 187K | 8.3% | 4 | 3.6K | 0.16% | 13 |
| Apr 2026 | 154K | 7% | 4 | 3.7K | 0.17% | 13 |
| May 2026 | 156K | 7% | 4 | 4.5K | 0.2% | 13 |
| Jun 2026 | 153K | 6.9% | 4 | 4.5K | 0.2% | 13 |
| Jul 2026 | 153K | 7.8% | 4 | 3.6K | 0.19% | 13 |
| Aug 2026 | 153K | 7.4% | 4 | 3.7K | 0.18% | 13 |
| Sep 2026 | — | — | — | — | — | — |

## How each brand is measured

Brandwave collects information about searches that people make online using BNZ’s and Mercer KiwiSaver’s names. When viewed over time, estimated search volumes for these branded terms can be used to understand whether interest in the brands is growing, holding steady, or fading.

- **BNZ**: Measured on the search terms “Bank of New Zealand”, “bnz”, “bnz banking”, “bnz credit card”, “bnz home loan”, “bnz home loans”, “bnz kiwisaver”, “bnz kiwisaver scheme”, “bnz mortgage”, “bnz mortgages”, “bnz personal loan”, “bnz savings”, “bnz savings account”, “bnz term deposit” and “kiwisaver bnz”, summed into one figure.
- **Mercer KiwiSaver**: Measured on the search terms “kiwisaver mercer”, “mercer kiwisaver”, “mercer kiwisaver nz” and “mercer kiwisaver scheme”, summed into one figure.

- [BNZ profile](/demand/nz/brands/bnz)
- [Mercer KiwiSaver profile](/demand/nz/brands/mercer-kiwisaver)
- [All KiwiSaver providers in New Zealand](/demand/nz/categories/nz-kiwisaver-providers): The set both shares are measured inside, 14 brands.

## Methodology

- [How is branded search demand measured?](/demand/methodology): Where the figures come from, what they compare, and how they may be reused.

## Frequently asked questions

### Which is more popular in search, BNZ or Mercer KiwiSaver?

In August 2026, BNZ had more branded searches than Mercer KiwiSaver among KiwiSaver providers in New Zealand. BNZ was estimated to have 153K branded searches compared to Mercer KiwiSaver’s 3.7K, and held a 7.4% Share of Search versus Mercer KiwiSaver’s 0.18%.

## Cite this page

Brandwave. "BNZ vs Mercer KiwiSaver: Which is more popular by branded search in New Zealand?". https://gobrandwave.com/demand/nz/compare/bnz-vs-mercer-kiwisaver

This page is also available as HTML at https://gobrandwave.com/demand/nz/compare/bnz-vs-mercer-kiwisaver. Brandwave publishes an index of its Markdown pages at https://gobrandwave.com/llms.txt.