Northern Star's Guidance Record
"Reliability of operational guidance became one of the central criticisms directed at Northern Star during 2025-26."
Activist Scrutiny: Elliott Investment Management
“Elliott Investment Management said…” that Northern Star had missed or lowered outlook guidance seven times across four financial years.
Source: Elliott Investment Management LP — Shareholder Letter & Presentation to NST Board (June 2026)
This website does not present the phrase “Northern Star unquestionably missed guidance seven times” as an uncorroborated objective fact. We document the specific company disclosures alongside the activist hedge fund’s interpretation of those market updates.
Historical Production Guidance vs. Audited Sales
ASX Annual Reports (FY23–FY26)| Financial Year | Initial Guidance | Revised / Final Guidance | Reported Sales (oz) | AISC (A$/oz) | Disclosed Operational Drivers |
|---|---|---|---|---|---|
| FY23 | 1,560,000 – 1,680,000 oz | Maintained within band | 1,563,000 oz | A$1,759/oz | Severe inflationary cost pressure in Western Australian mining labor, diesel, and consumable reagents. |
| FY24 | 1,600,000 – 1,750,000 oz | Lowered to 1,600,000 – 1,650,000 oz (April 2024) | 1,621,000 oz | A$1,853/oz | Pogo plant commissioning delays in Alaska, weather disruptions in Kalgoorlie, and labor availability. |
| FY25 | 1,650,000 – 1,800,000 oz | Downgraded to 1,600,000 – 1,640,000 oz | 1,612,000 oz | A$1,985/oz | KCGM mining inefficiencies and access delays following remediation work on the East Wall of the Super Pit; lower grades mined at Thunderbox. |
| FY26 | 1,700,000 – 1,850,000 oz | Downgraded to 1,600,000 – 1,700,000 oz (January 2026) | Guidance downgraded mid-year; tracking near ~1,630,000 oz run-rate | A$2,050 – A$2,150/oz | Catastrophic mechanical failure of KCGM primary gyratory crusher, pit wall geotechnical slippage at South Kalgoorlie following torrential rain, Thunderbox CIL tank maintenance, and Orelia grade reconciliation. |
KCGM East Wall Remediation & Guidance Miss
Northern Star's own financial and quarterly reporting acknowledged that the business did not achieve original FY25 production and cost guidance.
- East Wall Stabilization: Extensive remediation along the historic East Wall slippage zone at KCGM restricted access to higher-grade benches for multiple quarters.
- Mining Inefficiencies: Equipment availability constraints and longer underground haulage routes in Kalgoorlie led to lower tonnages mined.
- Unit Cost Inflation: All-in sustaining costs escalated to A$1,985/oz compared to initial projections of A$1,810–A$1,860/oz.
The 2.0 Million Ounce FY26 Milestone
In investor strategy presentations (2021-2023), Northern Star articulated a pathway toward achieving 2.0 million ounces of annual gold production by FY26, underpinned by KCGM plant expansion, Pogo ramp-up to 300kozpa, and Thunderbox 6Mtpa optimization.
Northern Star subsequently acknowledged in FY25 reporting that the 2.0 Moz by FY26 milestone would not be achieved on the original timetable due to sequential operational delays and geotechnical remediation at the Super Pit.
The January 2026 Guidance Downgrade
Publicly Disclosed Operational Drivers Behind the Downgrade:
Primary Gyratory Crusher Mechanical Failure
Severe bottlenecking of ore feed to Fimiston processing plant for approximately 4 weeks, forcing utilization of low-grade stockpiles and temporary contractor mobile crushing units at elevated unit cost.
Pit-Wall Instability Following Unseasonal Heavy Rainfall
Severe regional rain events caused localized geotechnical movement along the pit wall, restricting access to higher-grade bottom benches and requiring priority earthmoving for wall stabilization.
CIL Leaching Circuit Bottlenecks & Tank Relining
Processing inefficiencies in the carbon-in-leach circuit and extended shutdown for major agitator repairs reduced overall plant availability.
Grade Reconciliation Divergence
Mined gold grades in upper sections of the Orelia deposit reconciled approximately 8-12% below initial block-model estimates during the half.
ASX Price & Volume Inquiry (Continuous Disclosure Query)
Following a 7.8% decline in Northern Star's share price over the two trading sessions preceding the 22 January announcement, the Australian Securities Exchange (ASX) issued a formal continuous disclosure compliance query asking whether the company had complied with Listing Rule 3.1 regarding timely disclosure of material operational shortfalls.
"Northern Star responded on 29 January 2026, confirming full compliance with ASX Listing Rules. The company stated that the board only reached a concluded view on the cumulative financial impact and necessity of a formal guidance revision during an extraordinary board meeting held late on 21 January 2026, immediately prior to market release."