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Kernel KiwiSaver Review (2026)
Low-fee KiwiSaver and investment funds with a largely passive approach.
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Brent Coleman
What is Kernel?
Kernel Wealth is a privately owned, Auckland based index fund manager. It launched in late 2019 and only sells its own funds rather than distributing third party funds the way InvestNow or Sharesies do.
By September 2026, Kernel managed $5.0 billion+ for 70,000+ investors, a rapid climb from the “over $1 billion” it managed as recently as June 2024. That growth has come from a combination of new fund launches, the 2022 KiwiSaver Plan launch, and the 2025 move into direct US share investing.
What can you invest in?
- Kernel Invest: a lineup of 28 funds (mostly index funds, plus a handful of actively managed fixed income funds), spanning NZ shares, global shares, sector and thematic funds, bonds, and three ready made diversified options.
- Kernel KiwiSaver Plan: launched mid 2022. Offers 25 of Kernel's 28 total funds. Investors can choose a ready made diversified fund (High Growth, Balanced or Cash Plus) or build a custom portfolio from the eligible fund list, which also includes the newer Conservative Fund.
- Kernel Shares & ETFs: launched May 2025. Direct, NZD quoted access to 3,000+ US shares and 300+ ETFs, held through broker dealer and custodian Alpaca. No brokerage on any plan, just a $1 minimum and a tiered FX fee.
- Kernel Save and Kernel PIE Save: two on-call savings accounts. Kernel PIE Save adds a PIE tax wrapper on top of the same rate, which benefits investors on a PAYE rate above 28%. Kernel Save is covered by the Reserve Bank's Depositor Compensation Scheme, up to $100,000 per depositor. Kernel PIE Save is not DCS-covered, since its PIE structure sits outside the scheme.
- Account types: Individual, Joint, Kids (child), Trust and Company accounts are all available, on every Kernel plan. Kids accounts are opened by a parent or legal guardian for under-18s and carry the same fees as an individual account. KiwiSaver is individual-account-only: joint, trust and company account holders need a separate individual account to join the Kernel KiwiSaver Plan, and Kernel does not currently offer KiwiSaver for kids accounts.
Fund fees
Kernel's fund fees run from 0.12% p.a. to 0.45% p.a., with most funds sitting at 0.25%:
Kernel Invest fund fees
Other Kernel Invest & KiwiSaver fees
Kernel Shares & ETFs plan fees
* above fees were manually checked against Kernel's website on 1 September 2026
How does Kernel invest?
Kernel is primarily a passive, index tracking manager, with a small number of actively managed fixed income funds. Most equity funds hold their underlying shares directly rather than investing through other funds. The three diversified funds (High Growth, Balanced, Conservative) and a handful of thematic funds are structured as wrappers around other funds or ETFs rather than direct holdings.
Performance
Kernel's own marketing highlights results from the Morningstar KiwiSaver 360 survey. In Morningstar's independent survey to 30 June 2026 (the most recent quarterly edition), Kernel's High Growth Fund ranked #1 in the Aggressive category for 3-year returns (17.1% p.a., still the cheapest fund in the category at 0.25%). It ranked 2nd for 1-year (22.7%) and 21st for 3-month (10.4%) this time, a step down from the prior quarter, when it ranked #1 on all three measures. The Balanced Fund again ranked #1 for 3-year returns in the Balanced category (12.7% p.a., up from 11.7% the prior quarter), while placing 2nd for 1-year and 28th for 3-month.
Scale and history
- Late 2019: Kernel launches.
- Mid 2022: Kernel KiwiSaver Plan launches.
- 2023: Global ESG Fund, Global ESG (NZD Hedged) Fund, NZ Bond Fund, the two March maturity NZ Bond Funds, and US Bond Fund are added.
- November 2024: Emerging Markets Fund and S&P 500 (Unhedged) Fund added.
- December 2024: funds under management pass $1 billion.
- May 2025: Kernel Shares & ETFs launches, Kernel's move into direct US investing.
- August 2025: Australia 100, Conservative, World ex-US and World ex-US (NZD Hedged) Funds added.
- 24 June 2026: Total World Fund launches at 0.12% p.a., Kernel's cheapest fund to date.
- Mid 2026: Kernel PIE Save launches, sibling to the existing Kernel Save account.
- 15 June 2026: Kernel's own Product Disclosure Statement confirms 29 funds in total.
- By August 2026: $5.0 billion+ under management across 70,000+ investors.
The bottom line
Kernel is one of the lowest fee options in the NZ index fund and KiwiSaver market, with a fast growing fund lineup and, since 2025, a genuine local alternative to international brokers for direct US share investing. Its main trade off against longer established passive competitors is a shorter track record, having only launched in 2019.