Norway’s Government Pension Fund Global returned 15.1% (currency basket) in 2025 and was worth 21,268 billion kroner at year-end. Both figures are true. Both carry measurement conventions the headline does not state. This brief decomposes one headline into the population, moment, and measure it actually describes.
The 15.1% is the return measured in the fund’s international 34-currency basket. The 6.00% is the same year’s return expressed in Norwegian kroner. The gap — 9.1 percentage points (RAOSCAFF arithmetic) — is a measurement-currency difference, not a discrepancy. Both figures are published by NBIM.
On 29 January 2026, Norway’s sovereign wealth manager NBIM published the headline: the Government Pension Fund Global “returned 15.1% (measured in its currency basket) in 2025” and held 21,268 billion kroner (~US$2.1tn; RAOSCAFF conversion at the 31 Dec 2025 USD/NOK rate) at 31 December 2025. Both numbers are real, verified, and published on NBIM’s own pages.
The single number “15.1%” compresses at least three separable measures into one figure: it names a return denomination (the 34-currency basket) without saying so; it reports an absolute year without noting the benchmark slippage behind it; and it is silent about the flows — a currency swing and fresh capital — that moved the 21,268bn-kroner stock between snapshots.
A “return” has no meaning until its numéraire is named. The 15.1% answers the question “what did the fund earn in the currency mix its international mandate is measured against?” The 6.00% answers “what did the fund earn expressed in the home currency?” Neither is wrong; they simply answer different questions. A reader who treats 15.1% as a universal, denomination-free return has read a measurement-currency choice as a fact about the world.
The bridge between them is a flow: a stronger krone subtracted 1,155 billion kroner of value. The stock of 21,268bn NOK quietly absorbs that FX swing and a 327bn-kroner inflow.
Axis 1 — measurement currency. The 15.1% return is in the fund’s 34-currency basket; the 6.00% return is in Norwegian kroner. Both are published by NBIM for the same year. The bridge is a flow: a stronger krone “contributed to a fall in the value of 1,155 billion kroner” [S1]. This is format conversion in plain sight.
Axis 2 — absolute versus relative. The 15.1% basket return was 0.28 percentage points lower than the fund’s own benchmark index [S1]. A strong tide, fractionally behind its buoy — a distinction the headline number does not surface.
Axis 3 — stock versus flows. The 21,268bn-NOK year-end value is a snapshot, not a full account. Behind it: a currency move subtracted 1,155bn NOK; new capital added 327bn gross / 319bn net of management costs [S1][S4] — two published figures for the same inflow. And the blend is lopsided: equities returned +19.3% and are 71.3% of the fund [S1][S2]. The headline is, in effect, an equity story wearing a whole-fund label.
| What was published | What it conceals | The concealed figure |
|---|---|---|
| “15.1%” return (2025) | Which currency measures it — basket vs home currency | Basket +15.1% vs +6.00% in NOK — 9.1pp gap (RAOSCAFF arithmetic) [S1][S4] |
| “15.1%” return | Absolute ≠ relative — vs the fund’s own benchmark | −0.28 pp below benchmark [S1] |
| “21,268bn NOK” value (31 Dec 2025) | A stock hides its flows: FX swing + new capital | −1,155bn NOK FX; +327bn gross / +319bn net inflow [S1][S4] |
The asset-class contributions confirm the equity dominance: equities (+19.3%), unlisted renewable infrastructure (+18.1%), fixed income (+5.4%), and unlisted real estate (+4.4%) [S1]. With equities at 71.3% of the portfolio, the equity sleeve drove most of the 2025 return (RAOSCAFF arithmetic: ~13.8pp equity contribution out of the 15.1% blended return) — the blended headline is overwhelmingly an equity-year figure.
If you read one thing: “15.1%” is the return in the currency basket — not in Norwegian kroner, not vs benchmark, not the fund’s total cost. The same year in NOK returned 6.00%.
Norway’s GPFG published a single headline for 2025 — +15.1% — and a single stock figure — 21,268 billion kroner. Both are real. Both compress more than they show. The 15.1% is a denomination choice: it is the return in the fund’s 34-currency international basket; in Norwegian kroner the identical year returned 6.00%, a 9.1-point gap between two simultaneously correct published figures (RAOSCAFF arithmetic: 15.1 − 6.00). A strong absolute year was, measured against the fund’s own benchmark, 0.28 percentage points behind — absolute strength and relative slippage in the same result. And the 21,268bn-NOK stock number is a still photograph that absorbs — without stating — a −1,155bn-NOK FX swing from a stronger krone and a +327bn-gross / +319bn-net capital inflow. Mirror Brief NO-01 makes one claim: read a “return” as undefined until its numéraire is named. Every figure traces to NBIM’s own published pages [S1–S4]; derived figures are labelled RAOSCAFF arithmetic. The brief critiques the metric, never NBIM, the fund, or any person. It is politically neutral, makes no causal claim about Norwegian fiscal or oil-revenue policy, and offers no forecast, buy, sell, or hold view.
Mirror format — RAOSCAFF anchors on the publisher’s own filed pages and decomposes the number they print. NO-01 is a single-fund, single-year decomposition: NBIM’s 29 January 2026 press release, the fund-value page, the returns page, and the 2025 web annual report supply every figure. The headline return (15.1%), the NOK return (6.00%), the benchmark gap (−0.28pp), the asset-class contributions, the FX flow (−1,155bn NOK), and the gross and net inflows (327bn / 319bn) all trace to these four pages. No secondary data, no aggregator, no analyst estimate.
Basket-vs-NOK spread = 9.1pp — derived as 15.1 − 6.00 from [S1] and [S4]; labelled RAOSCAFF arithmetic throughout. USD value ≈ US$2.11tn — RAOSCAFF conversion at the 31 Dec 2025 USD/NOK rate (0.09913): 21,268bn NOK × 0.09913; rounded conservatively to “~US$2.1tn”; not an NBIM-published figure. Equity contribution ≈ ~13.8pp — RAOSCAFF arithmetic: 19.3% × 0.713 portfolio weight; labelled throughout. Gross−net inflow gap = 8bn NOK — derived as 327 − 319 (management-cost wedge). Every other figure is a published NBIM number.
All four sources are NBIM’s own published pages; the press release is dated 29 January 2026. Full citations and the complete arithmetic register are in the companion FACTS.md, §H.