A defensive KiwiSaver fund is the most conservative investment option available, sitting below even the conservative fund on the risk spectrum. Not all providers offer a fund by this exact name — here’s what to expect.
What Is a Defensive Fund?
A defensive fund holds the largest allocation to income assets (cash, bonds, term deposits) and the smallest allocation to growth assets (shares, property). The goal is capital preservation — minimising the risk of losing money in the short term, at the cost of lower long-run returns.
Typical defensive fund asset allocation:
| Asset class | Approximate allocation |
|---|---|
| Cash and short-term deposits | 30–50% |
| Fixed interest / bonds | 30–45% |
| NZ and international shares | 5–20% |
| Property/other growth assets | 0–5% |
This compares to a conservative fund (approximately 20–30% growth assets) — defensive is even more tilted toward income assets.
Expected Returns
| Fund type | Approximate long-run return |
|---|---|
| Defensive | 2–4% p.a. |
| Conservative | 3–5% p.a. |
| Moderate/balanced | 5–7% p.a. |
| Growth | 7–9% p.a. |
A defensive fund sacrifices significant long-run return potential in exchange for low volatility. Over 30 years, the difference between defensive and balanced return assumptions is enormous — potentially $300,000+ on a $50,000 starting balance.
Who Should Consider a Defensive Fund?
Defensive funds are appropriate in very specific circumstances:
- Withdrawing KiwiSaver within 1–2 years — if you need the money very soon (e.g., approaching first home settlement or qualifying age), a defensive fund eliminates short-term market risk
- Extremely low risk tolerance — members who genuinely cannot tolerate any balance decline, even temporarily
- Very short remaining investment horizon — only a year or two until age 65 with immediate withdrawal plans
Who should NOT be in a defensive fund:
- Members under 55 — the long-run return penalty is enormous
- Anyone with 5+ years before needing the funds
- Members who switch to defensive after a market fall — locking in losses
Availability in NZ KiwiSaver
Defensive is not a universally available fund category. Providers that offer a defensive option include:
| Provider | Defensive-type fund |
|---|---|
| ANZ | Cash fund / Defensive Balanced |
| SuperLife | SuperLife Cash / SuperLife 0 (0% growth) |
| Booster | Defensive Balanced |
| Fisher Funds | Not always a distinct defensive tier |
| Simplicity | Cash fund (near-defensive) |
Providers that don’t offer a defensive tier have conservative as their lowest-risk option.
Defensive vs Cash Fund
Some providers offer a cash fund that is even lower-risk than defensive — investing primarily in cash and short-term deposits. Cash funds aim for minimal volatility and near-zero chance of balance decline, at the cost of very low returns (approximately 2–3% p.a.).
For most KiwiSaver members, a cash fund is only appropriate for the final 3–6 months before a planned first home withdrawal or retirement access.
The Real Risk of Being Too Conservative
The biggest risk in a defensive fund is not short-term volatility — it’s inflation erosion. With 2–4% returns and NZ CPI averaging 2–3%, a defensive fund may barely keep up with inflation in real terms, while growth funds have historically delivered 4–6% real returns over the long run.
Being in a defensive fund for 20 years doesn’t feel risky from year to year — but the opportunity cost vs a growth fund is enormous.