NZ Super measures every active bet against doing nothing
The New Zealand Superannuation Fund grew to NZ$94.4 billion in the year to June 2026, a 14.2% return. The method is the interesting part. It keeps a simple passive Reference Portfolio as its benchmark, and every active decision has to beat that lazy version after costs. Since 2003 the active work has added 1.37% a year, worth NZ$22.6 billion. After its latest five-yearly review it cut both its expected return and its budget for active risk.
Key numbers, and what they mean
14.2%
Its return for the year to June 2026, after costs. Its own passive benchmark returned 14.27%, so active management subtracted 0.10% over the year.
+1.37%
The annualized value it has added above that passive benchmark since 2003, worth about NZ$22.6 billion. The case for active management is made over decades, not years.
0.90%
Its new budget for active value-add, cut from 1.00% effective July 2026. It lowered its own ambition rather than reaching for more risk.
7.2%
Its long-term expected return, cut from 7.8% after the review, on the view that US equities are expensive.
Actual mix (June 2025)
Listed equities54%
Private & real assets19%
Fixed income18%
Other alternatives8%
Cash & other1%
The read-through
From the report
Takeaway: how to apply it to a portfolio
Every active decision is measured against a simple passive Reference Portfolio: what the fund would have earned doing nothing clever.
Pick a cheap, simple portfolio you could genuinely hold, then judge every active bet against it. If a strategy cannot beat the lazy version after fees, you should not own it.
Active management has added 1.37% a year since 2003, but it subtracted 0.10% in the year to June 2026.
Active value shows up over decades and disappears in individual years. Judge it across a full cycle, and size it so that a bad stretch is survivable rather than fatal.
After its five-yearly review the fund cut its expected return from 7.8% to 7.2% and its active budget from 1.0% to 0.9%.
When expected returns fall, lower the plan before you reach for risk. Adjusting what you expect is far safer than adjusting what you own to chase a number you already promised.
The Argus lensThe Reference Portfolio asks one question of every private fund: does it beat a cheap listed portfolio after fees? That is precisely the comparison we run on the private deals and funds you are offered.
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About the source
The Guardians of New Zealand Superannuation's FY2026 results, released 16 September 2026, cover the year to 30 June 2026: the NZ$94.4 billion fund size, the 14.2% return and the value added over the Reference Portfolio. These figures are provisional and unaudited; the audited annual report is due in October 2026. The asset mix shown is the most recent published, as at 30 June 2025.