CoreWeave (CRWV) Q4 2025 earnings review
Massive Backlog Growth Overshadows Near-Term Margin Squeeze
CoreWeave delivered a blowout quarter to close FY25, hitting $1.57B in Q4 revenue (+110% YoY) and ending the year as the fastest cloud to reach a $5 billion annual run rate. However, the true story is the revenue backlog, which exploded to $66.8 billion, up from $25.9B just three quarters ago. While top-line growth is accelerating, profitability took a forecasted hit: Adjusted Operating Income margin collapsed to 6% from 16% in Q3. This was telegraphed by management in prior quarters as a necessary byproduct of bringing massive infrastructure online ahead of revenue recognition. With $14.6B in long-term debt funding this hyper-growth, the execution risk remains high, but the demand signals are unprecedented.
🐂 Bull Case
The $66.8B revenue backlog provides years of highly predictable, contractually obligated revenue. CoreWeave is successfully capturing the infrastructure layer of the AI boom faster than traditional hyperscalers.
The company added ~260 MW of active power in Q4 alone, reaching over 850 MW, and expanded total contracted power to 3.1 GW. They are successfully executing the physical build-out required to monetize their backlog.
🐻 Bear Case
Adjusted Operating Margin dropped sharply to 6% in Q4 from 16% in Q3. The costs of massive leases and data center deployments are dragging down the bottom line before the revenue scales to match.
Long-term debt spiked to $14.6B. Q4 interest expense hit $388M, consuming nearly 25% of top-line revenue. Any slowdown in AI monetization could make this capital structure fragile.
⚖️ Verdict: 🟢
Bullish. While the margin compression and cash burn are objectively severe, they are the expected physics of infrastructure hyper-growth. A $66.8B backlog and 3.1 GW pipeline prove CoreWeave is winning the AI compute land grab.
Key Themes
Revenue Backlog Reaches Escape Velocity
Accelerating. The revenue backlog grew to an astonishing $66.8 billion, more than quadrupling from the start of the year. This is driven by relentless AI demand and major expansions with existing hyperscalers and frontier labs (Cognition, Midjourney, Runway). This backlog acts as a massive derisking mechanism for the company's aggressive debt-funded CapEx strategy.
Operating Margins Compress Sharply
Decelerating. Adjusted Operating Income fell to $88M (6% margin) in Q4, down significantly from Q3's $217M (16% margin), despite revenue growing sequentially by over $200M. This confirms management's prior warnings: the timing mismatch of incurring massive lease and hardware costs before full revenue generation is putting intense short-term pressure on operating profitability.
Aggressive Physical Capacity Scaling
Accelerating. The primary bottleneck in the AI industry is physical data centers ('powered shells'). CoreWeave added ~260 MW of active power in Q4, bringing the total to >850 MW. More importantly, total contracted power grew to 3.1 GW. CoreWeave is effectively turning capital into physical moats faster than competitors.
Massive CapEx Drives Deep Cash Burn
Decelerating. CoreWeave burned through capital at a historic rate in Q4. While Operating Cash Flow was positive at $1.56B, capital expenditures hit $4.06B for the quarter, resulting in an implied negative free cash flow of ~$2.5B. Full-year FY25 CapEx exceeded $10.3B. This business requires relentless access to capital markets to survive.
Software and Ecosystem Expansion
Accelerating. CoreWeave is moving beyond raw compute to own the AI developer workflow. Q4 saw the acquisitions of Marimo (AI-native Python notebooks) and Monolith (industrial/manufacturing AI), alongside the launch of 'Serverless RL' for reinforcement learning. Paired with CoreWeave AI Object Storage, the company is building a sticky, high-margin software stack to abstract infrastructure complexity.
Interest Expense Drag
Decelerating. The cost of financing the AI buildout is staggering. Net interest expense in Q4 reached $388M, eating up 24.6% of total revenue. Total FY25 interest expense was $1.23B. While the company upsized its revolving credit facility to $2.5B and raised $2.6B in convertible notes, the sheer weight of debt servicing makes the company highly sensitive to any pricing power deterioration.
Other KPIs
Accelerating in absolute terms, representing a 57% margin. While margin is down slightly from the 60%+ seen earlier in the year, the absolute dollar generation nearly doubled YoY (Q4 2024 was $486M). This remains the primary metric management uses to validate the underlying unit economics of their GPU contracts.
Up massively from $5.4B at the end of FY24. When including $6.7B in current debt, total debt sits at $21.3B. The company raised an additional $2.6B in convertible senior notes in Q4 to fuel the 3.1 GW capacity pipeline.
More than doubled from $11.9B at the end of FY24. This line item represents the physical manifestation of the AI compute boom—servers, networking gear, and capitalized data center builds.
Guidance
Management withheld specific numeric revenue and operating income guidance from the print, stating it will be provided on the conference call. However, the sheer size of the $66.8B backlog acts as a de facto multi-year revenue guide.
Accelerating. The company ended Q4 with 850 MW active out of 3.1 GW contracted. This implies that over 2.2 GW of physical infrastructure is slated to come online in the coming years, guaranteeing a massive continued runway for CapEx deployment and subsequent revenue recognition.
Key Questions
Margin Trough Timeline
Adjusted Operating Margin hit 6% this quarter due to the deployment of your largest-scale clusters. Is Q4 the trough for operating margins, or will the 2.2 GW of remaining contracted power cause similar margin compression cycles in 2026?
CapEx Pacing vs Cash Generation
With $10.3B in CapEx deployed in FY25, and management previously indicating 2026 CapEx could be double that of 2025, how should we model the transition from cash burn to free cash flow generation? Are we looking at 2028 or later?
Convertible Notes and Capital Structure
You recently raised $2.6B via convertible senior notes. As debt levels cross $21B globally, at what point does the capital structure shift more heavily toward equity rather than continued debt accumulation?
Software Acquisition Integration
With the acquisitions of Monolith, Marimo, and previously Weights & Biases, how much of the $66.8B backlog is tied to integrated software/services versus raw GPU compute provisioning?