IREN Limited (IREN) | The Buildout — AI Infrastructure
The Verdict
IREN designs, builds, and operates large-scale, renewable-powered data centers that house GPU clusters for artificial-intelligence training and inference. Originally a Bitcoin miner, the company is now systematically decommissioning its mining hardware and repurposing its global portfolio of secured power toward AI workloads. IREN’s physical product is ready-to-use AI compute — delivered fast — at a time when power and data-centre availability are the primary constraints on AI infrastructure expansion.
| Market Cap | — |
| Revenue (TTM) | $757M |
| Revenue Growth | +104.3% |
| EBITDA Margin (TTM) | 19.5% |
| Net Debt | $1.8B |
| Earnings Beats | 1 of 7 |
| P/E (TTM) | — |
| EV/EBITDA (TTM) | — |
What We Like
- Contracted annualized recurring revenue (ARR) stands at $3.1B, with management targeting an increase from $3.4B — implying AI cloud becomes essentially the entire business.
- A $9.7B multi-year contract with Microsoft covers 300 MW of liquid-cooled capacity; Microsoft has prepaid ~$1.9B and GPU capital is 95% financed at a blended ~3% rate.
- NVIDIA is both a customer ($3.54B managed-services contract) and an investor ($2.1B staged equity that vests as GPUs deploy), aligning incentives and validating IREN’s platform.
- 5 GW of secured power spans four global markets, with Sweetwater’s 2 GW insulated from ERCOT batch reassessment; only ~10% is required to hit the 2026 ARR target.
- Vertical integration with self-performed design, construction, and operations gives IREN a ‘time-to-compute’ edge in a market where power and data-centre delivery are severely supply-constrained.
What We’re Watching
- Microsoft Horizon 1 handoff (Q3 2026): on-time delivery is the first major execution test; a further slip would dent confidence.
- GPU supply chain: memory shortages flagged by Dell and SMCI could delay the planned deployment of 150,000 GPUs by end-2026.
- Remaining 2026 ARR gap: ~$600M in additional contracts needed to hit the $3.7B target; management says negotiations are active, but until signed, the target isn’t fully de-risked.
- Capital funding for the 5 GW buildout: the Microsoft financing template (95% debt at ~3%) must be replicated for future GPU packages to avoid highly dilutive equity raises.
The business transition from Bitcoin mining to AI cloud is accelerating. With $3.1B in contracted ARR, raised guidance, and the close of the Microsoft financing and NVIDIA partnership, the thesis that IREN can become a leading AI infrastructure platform is strengthening. The near-term picture is noisy — mining impairments depress earnings and the Microsoft ramp slipped one quarter — but the core narrative of converting secured power into long-term AI cloud contracts with tier-1 customers is intact. The key open question is whether IREN can fund the full 5 GW buildout on favorable terms without excessive dilution.
Earnings
In the March 2026 quarter, IREN reported revenue of $144.8 million, down 22% sequentially as Bitcoin mining revenue declined faster than AI Cloud grew. Gross margin came in at 64.6%, while the net loss swelled to $247.8 million, driven by a $140.4 million non-cash impairment of decommissioned mining hardware and $23.7 million in unrealized convertible-note losses. AI Cloud Services revenue nearly doubled quarter-over-quarter to $33.6 million.
| Metric | Q3 FY2026 | Q2 FY2026 | Q3 FY2025 | YoY |
|---|---|---|---|---|
| Revenue | $145M | $185M | $145M | +0.0% |
| Gross margin | 64.6% | 59.8% | 67.6% | -300bps |
| EBITDA | $28M | $14M | $75M | −62.8% |
| EPS | $-1.10 | $-0.69 | $-0.07 | +1458.9% |
| AI Cloud Services Revenue | $33.6M | $17.3M | n/a | — |
The world’s leading AI infrastructure company has chosen IREN Limited as the partner to help build it.— Daniel Roberts, Co-CEO, 7 May 2026
Management tone: Management shifted from a tone of 'advanced negotiations' to one of confirmed deals and execution. They acknowledged the Microsoft ramp slip without defensiveness, highlighted the NVIDIA partnership, and spoke emphatically about the security of their power assets and demand. The CFO warned transparently of further mining impairments.
Management Guidance
Management raised its year-end 2026 AI cloud ARR target to $3.7 billion, up from $3.4 billion. It expects 480 MW of AI cloud capacity and 150,000 GPUs deployed by that time. Microsoft revenue is now expected to begin in Q3 2026, with all four Horizon phases delivered by end-2026. The CFO also stated that additional non-cash impairments on decommissioned mining hardware will occur.
Trajectory
Revenue has been volatile as the company deliberately transitions from Bitcoin mining: after peaking at $240.3M in Q1 FY2026, total revenue declined to $144.8M in the latest quarter, while the AI Cloud segment nearly doubled to $33.6M. Gross margins, which swung from 83.5% to 26.9% in prior periods, settled at 64.6% as mining costs fell. The revenue mix is shifting irreversibly toward AI cloud, with contracted ARR of $3.1B promising a step-change in the next few quarters.
The Model
The model projects FY+1 revenue of $3,373 million and EBITDA of $2,095 million (62.1% margin), anchored by the ramp of contracted Microsoft and NVIDIA capacity plus initial air-cooled retrofits. For FY+2, the model forecasts $8,407 million in revenue with EBITDA of $5,599 million (66.6% margin), driven by scaling across Sweetwater, additional air-cooled retrofits, and the broader 5 GW buildout. The five-run revenue spreads are 17% for FY+1 and 16% for FY+2.
| Metric | FY2025 | Next FY (E) | Following FY (E) |
|---|---|---|---|
| Revenue | $501M | $3.4B | $8.4B |
| YoY Growth | — | +573.3% | +149.2% |
| EBITDA | $196M | $2.1B | $5.6B |
| EBITDA Margin | 39.2% | 62.1% | 66.6% |
Projections are the median of 5 independent model runs.
Management raised its year-end 2026 AI cloud ARR target to $3.7 billion, up from $3.4 billion. It expects 480 MW of AI cloud capacity and 150,000 GPUs deployed by that time. Microsoft revenue is now expected to begin in Q3 2026, with all four Horizon phases delivered by end-2026. The CFO also stated that additional non-cash impairments on decommissioned mining hardware will occur.
What Could Go Right — and Wrong
- On-time or early delivery of Microsoft Horizons and rapid conversion of $3.1B ARR to cash revenue, proving the execution model.
- Signing of a third hyperscale contract on the scale of Microsoft or NVIDIA for 2027 capacity, further diversifying the customer base.
- Replication of the Microsoft financing template (95% GPU debt at ~3%) for all future GPU packages, maintaining low-cost capital and limiting dilution.
- Faster-than-expected European and APAC monetization, with Nostrum sites moving to construction ahead of schedule and securing prepayments.
- NVIDIA’s partnership deepens, providing preferential GPU allocations and accelerating enterprise customer introductions via Mirantis.
- A major Microsoft or NVIDIA contract cancellation, significant renegotiation, or prolonged delivery delay, exposing customer concentration risk.
- Persistent failure to contract the remaining $600M of 2026 ARR, calling the $3.7B target into question.
- Severe GPU supply-chain shock — memory shortages or export restrictions — delaying deployment of tens of thousands of contracted GPUs.
- Inability to secure financing on acceptable terms for non-Microsoft phases, leading to a stalled growth trajectory or highly dilutive equity raises.
- Technology obsolescence renders Blackwell GPUs uneconomic faster than expected, forcing large writedowns and undermining the residual-value thesis.
Looking Ahead
In the next twelve months, IREN will work to deliver on its contracted commitments: handing over Microsoft Horizon 1 and completing air-cooled retrofits at Childress, while converting the remaining uncontracted 2026 ARR into signed deals. The Q4 FY2026 results should show the first meaningful AI Cloud revenue contribution. Beyond that, scaling to 1.21 GW by 2027, closing new customer contracts, and advancing the European and Australian platforms will define the trajectory.
- Q3 2026Microsoft Horizon 1 handoff — First liquid-cooled AI cloud revenue; major execution test for on-time delivery.
- H2 2026Air-cooled retrofits GPU deliveries — Initial 50 MW at Childress drives uncontracted ARR conversion and NVIDIA ramp.
- Aug/Sep 2026Q4 FY2026 results — Initial Microsoft revenue; first look at scaled AI cloud trajectory.
- End 2026Microsoft Horizons 2-4, 150k GPU target — Completes 300 MW Microsoft buildout and achieves year-end ARR target.
- 2026ERCOT batch-study results — Confirms Sweetwater’s batch-0 status, permanently de-risking 2 GW of capacity.
- 2027Sweetwater One 200 MW delivery — First path to 1.21 GW scale; designed for next-gen Rubin GPUs.
Financials
Annual Summary
| Metric | FY2025 | TTM |
|---|---|---|
| Revenue | $501M | $757M |
| Gross Margin | 48.1% | 53.6% |
| EBITDA | $196M | $268M |
| EBITDA Margin | 39.2% | 19.5% |
| Net Income | $6M | $77M |
| Free Cash Flow | −$969M | −$3.0B |
| Net Cash | — | — |
Key Ratios (Trailing)
- P/E TTM—
- EV/EBITDA TTM—
- EV/Revenue TTM—
- Price/FCF TTM—
- Gross Margin (TTM)53.6%
- EBITDA Margin (TTM)19.5%
- Net Margin (TTM)10.2%
- ROIC-4.0%
- FCF Conversion-1222.7%
- SBC / Revenue17.3%
The Company
IREN designs, builds, and operates large-scale, renewable-powered data centers purpose-built for AI workloads. Its product is ready-to-use GPU compute — delivered on short timelines — which makes it a critical supplier in an AI infrastructure market defined by a severe shortage of power and data-center capacity. The company’s contracts with Microsoft ($9.7B) and NVIDIA ($3.54B) underline the scale and urgency of hyperscaler demand.
The company is vertically integrated: it secures its own power, self-performs data-center design and construction, and now, via the Mirantis acquisition, layers on cloud orchestration software. This integration compresses project timelines and reduces reliance on external EPC contractors. IREN currently controls 5 GW of secured power across Texas, Oklahoma, British Columbia, Spain, and Australia, with 730 MW of data-center capacity under construction.
Business Segments
Competitive Landscape
IREN operates in a rapidly expanding AI cloud market where power and data-center availability are the binding constraints. It competes with well-funded GPU cloud specialists like CoreWeave and Lambda, as well as hyperscaler-owned platforms. Its main differentiator is its 5 GW of secured power — accumulated through years of Bitcoin mining development — and its vertically integrated delivery model, which management argues creates a multi-year barrier to entry.
- CoreWeaveDirect AI cloud competitor, also a large NVIDIA GPU cloud partner.
- LambdaCompetes in GPU cloud services; named in IREN filings.
- NebiusCompetes in AI cloud services; named in IREN filings.
- Crusoe CloudCompetes in AI cloud services; named in IREN filings.
- Hyperscaler clouds (AWS, Azure, GCP)Named in filings; competition from in-house clouds of IREN's own customers.
Supply Chain
IREN sits between power generation and end-users of AI compute, combining land, grid connection, data-center construction, and GPU procurement into a vertically integrated offering. It depends on a concentrated group of suppliers for GPUs, networking, and power equipment.