CoreWeave’s AI Data Center Capacity Is Exploding — Its $35 Billion Debt Load Still Makes the Stock Untouchable
CoreWeave is racing to build the AI infrastructure backbone that hyperscalers desperately need, and its revenue backlog dwarfs what most companies ever dream of. But a closer look at what is financing that expansion raises serious questions about whether growth…
The AI infrastructure buildout continues to reshape capital markets in 2026, with specialized providers racing to deliver the power and GPUs that large language models demand. Investors have piled into the sector on the promise of multi-year contracts and soaring utilization. Yet not every high-growth name deserves a place in a retail portfolio.
CoreWeave (NASDAQ:CRWV) illustrates the tension perfectly: explosive physical expansion meets a balance sheet that already strains under the weight of its own ambition.
Capacity Growth Looks Compelling on Paper
CoreWeave has scaled active data center capacity from roughly 70 megawatts (MW) at the end of 2023 to about 1.5 GW by mid-2026, with management targeting more than 1.8 GW by year-end. Projections point toward 3.2 GW by the close of 2027. That trajectory would nearly triple the physical foundation of its revenue base in under two years.
The company does not build in a vacuum. Its revenue backlog stood at $104.2 billion after the second quarter of 2026 — a figure that exceeds its market capitalization and reflects multi-year take-or-pay style contracts with major AI and hyperscale customers.
Nebius Group (NASDAQ:NBIS | NBIS Price Prediction) and IREN (NASDAQ:IREN) are expanding too, but from smaller bases and with less absolute leverage. CoreWeave’s scale puts it in the lead on raw megawatts, and every additional gigawatt theoretically supports billions in potential annual revenue under industry modeling assumptions. In short, demand appears real and contracted. The growth story is not speculative.
The Debt Arithmetic Changes the Picture
Yet, that same expansion is financed overwhelmingly with borrowed money. CoreWeave ended the second quarter of 2026 with roughly $35 billion in total debt, up sharply from prior periods, against a few billion dollars in cash and liquidity. Interest expense alone reached $640 million in the quarter and is guided higher. At current rates and balances, annual interest costs are on track to approach or surpass $3 billion — a heavy fixed burden for a company that has yet to post sustained positive GAAP operating income.
Free cash flow remains deeply negative because capital expenditures hit $9.4 billion in a single quarter and full-year 2026 guidance was raised to $35 billion to $39 billion. Peer comparisons underscore the difference.
Nebius carries roughly $8.5 billion in long-term debt with a heavier mix of low-coupon convertibles and substantial customer prepayments expected to exceed $9 billion in 2026. IREN’s total debt sits nearer $4 billion, supported by project-level financing at rates below 6% in some facilities and meaningful prepayments on recent contracts. CoreWeave’s leverage stands apart.
Granted, much of the debt is asset- or contract-backed, and the company has lowered its weighted average cost of borrowing by about 300 basis points over the past year. That said, the absolute size still leaves thin margins for error if GPU utilization slips, pricing softens, power delivery lags, or capital markets tighten.
Why the Risks Outweigh the Growth for Most Investors
The investing thesis here is straightforward. CoreWeave is executing a high-growth strategy that requires continuous large-scale external capital to convert backlog into revenue. Interest costs are already large enough to keep GAAP results in the red even as adjusted metrics improve. Credit markets have reflected caution through elevated default-probability pricing in some periods and occasional widening of spreads on new facilities.
Smart investors can acknowledge the multi-year demand runway for AI infrastructure without owning the most leveraged participant. Nebius and IREN offer exposure to similar capacity expansion with lower absolute debt loads and greater reliance on prepayments. CoreWeave’s own numbers — $35 billion in debt, $640 million quarterly interest, and still-negative free cash flow — show why the risk-reward balance currently tilts the wrong way for a long-term holding.
Key Takeaway
CoreWeave’s data center growth is accelerating and its backlog provides genuine visibility. Yet the combination of $35 billion in debt and rising interest expense creates a capital structure too fragile for most retail portfolios.
Investors seeking AI infrastructure exposure are better served looking at peers with more conservative funding mixes until CoreWeave demonstrates a clear path to sustained free cash flow and meaningful deleveraging.
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After two decades of patrolling the dark corners of suburbia as a police officer, Rich Duprey hung up his badge and gun to begin writing full time about stocks and investing. For the past 20 years he’s been cruising the markets looking for companies to lock up as long-term holdings in a portfolio while writing extensively on the broad sectors of consumer goods, technology, and industrials. Because his experience isn’t from the typical financial analyst track, Rich is able to break down complex topics into understandable and useful action points for the average investor. His writings have appeared on The Motley Fool, InvestorPlace, Yahoo! Finance, and Money Morning. He has been featured in both U.S. and international publications, including MarketWatch, Financial Times, Forbes, Fast Company, and USA Today.
