IGO Shares Dive As Guidance Cut Overshadows Strong Cash Flow

IGO shares (ASX: IGO) have fallen 16.39% to A$7.14 heading into the weekend, as markets focused squarely on operational setbacks and a material production downgrade at the company’s flagship Greenbushes lithium mine, overshadowing what would otherwise have been a headline-beating quarterly result.

The sell-off moved IGO’s share price negative year-to-date, now down 12.91% in 2026 following today’s move, with the stock surrendering gains accumulated during the recent lithium price recovery. The sharp intraday decline came despite the company reporting group sales revenue up 45% quarter-on-quarter to A$119.7 million and underlying EBITDA surging to A$119 million from just A$30 million in the December quarter.

Why Are IGO Shares Down?

The core driver of the negative market reaction was IGO’s decision to cut full-year production guidance for Greenbushes, the world-class lithium mine it operates in joint venture with Tianqi Lithium and Albemarle. The company now expects spodumene production of 1,375–1,425 thousand tonnes for FY2026, down from prior guidance of 1,500–1,650 thousand tonnes, a reduction of roughly 10–15% at the midpoint.

Management attributed the downgrade to a combination of factors that emerged during the March quarter: lower-than-expected ore feed grades, reduced plant recoveries, extended maintenance outages, and slower-than-anticipated ramp-up of the new CGP3 chemical-grade processing plant. The operational challenges were compounded by a deterioration in safety performance at the site, with the mine’s Total Recordable Injury Frequency Rate climbing above 11, nearly double the rate recorded in March 2024 forcing two safety stand-downs during the quarter.

Despite these headwinds, Greenbushes remains highly profitable. The operation posted an EBITDA margin of approximately 75% in the March quarter, up from the 60–65% range in prior periods, as the realised spodumene price nearly doubled to US$1,668 per tonne on the back of recovering lithium markets. Production in the quarter held roughly flat at 351 thousand tonnes, but the combination of lower volumes and higher unit costs which were also revised upward in the guidance update raised questions about execution capability at a time when lithium prices are providing a tailwind.

The company said capital expenditure for Greenbushes would be lower than previously guided, framing the reduction as improved capital discipline and a deferral of non-critical works. However, markets interpreted the move as a tacit acknowledgment that the asset is proving more complex to operate at higher throughput than anticipated.

Nova Delivers, But End of Life Looms

In contrast to Greenbushes, IGO’s Nova nickel-copper-cobalt operation in Western Australia delivered another strong quarter. Nickel production rose 11% quarter-on-quarter, and the mine generated approximately A$52 million in free cash flow, contributing meaningfully to the group’s improved cash position.

Nova’s EBITDA climbed more than 40% sequentially to around A$60–67 million, demonstrating the operational discipline and cost control that has characterised the asset throughout its life.

Safety performance at Nova also improved, aligning with the broader group TRIFR decline to 4.2 and a milestone of 90 consecutive days injury-free across IGO’s operations. The mine remains on track to deliver its unchanged FY2026 production guidance, with operations expected to continue through to mine closure around December 2026.

While Nova’s performance was a bright spot, markets are reluctant to assign high multiples to cash flows viewed as finite run-off rather than long-duration earnings. The mine’s impending closure removes a reliable cash engine from the portfolio at a time when Greenbushes is facing execution headwinds and the company’s Kwinana lithium hydroxide refinery continues to underperform.

IGO’s net cash position increased to A$327 million as at 31 March 2026, up from prior periods, reflecting strong cash generation from Nova and improving contributions from Greenbushes despite the operational challenges. The company completed the sale of its Forrestania nickel assets during the quarter and signalled ongoing portfolio rationalisation at other non-core sites, redirecting capital toward higher-return exploration and project-generation opportunities.

The Kwinana refinery remains a drag on group performance, with the operation continuing to incur losses and no clear near-term pathway to attractive returns visible in management commentary. Earlier decisions to pause or slow expansion at the downstream processing facility have been reinforced, reflecting a more cautious stance on vertically integrated lithium strategies in Western Australia.

Outlook

IGO has maintained its guidance for Nova and Kwinana operations, with the Greenbushes reset the only material change to full-year expectations. The company emphasised that operational and safety issues at Greenbushes are receiving full management focus, and that the CGP3 ramp-up remains on track despite being slower than initially anticipated.

For markets, the key question is whether the March quarter represents a trough in operational performance or the beginning of a longer period of execution risk. Bulls will point to Greenbushes’ tier-one asset quality, ultra-low costs, and 75% EBITDA margins as evidence that even the lowered guidance describes a highly cash-generative business. Any demonstration that FY2026–27 guidance is conservative rather than aggressive could support a re-rating, particularly if lithium prices remain firm and CGP3 delivers incremental tonnes in the second half of the year.

Bears, however, will focus on the multiple negative datapoints including safety deterioration, feed grade declines, recovery issues, and reliability problems, as evidence that further guidance resets may be needed. The finite life of Nova, combined with legacy issues at Kwinana and the perception that prior growth decisions did not meet hurdle rates, caps the management credibility premium and leaves little room for error.

The company’s net cash position and ongoing portfolio rationalisation provide optionality on capital management, including potential buybacks or dividends once operational issues are under control. However, until IGO can demonstrate consistent delivery at Greenbushes and a clear pathway to value creation at Kwinana, markets are likely to remain cautious.

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