Backblaze Stock Jumps on Huge CoreWeave AI Deal. The Bull Case Is Getting Stronger.
1 min read
The story
Backblaze (BLZE) shares jumped after the company announced a significant storage deal with CoreWeave, one of the most prominent AI-focused cloud compute providers backed by Nvidia and major institutional investors. CoreWeave will use Backblaze's B2 Cloud Storage to support AI training and inference workloads, pairing cheap, S3-compatible object storage with CoreWeave's GPU clusters — a combination that addresses cost pressures in AI infrastructure.
The deal matters because CoreWeave is not a small partner. CoreWeave recently completed one of the largest tech IPOs of 2025 and is scaling aggressively to serve AI model builders. A storage relationship with a hyperscale-adjacent AI cloud operator could meaningfully expand Backblaze's addressable revenue, particularly given the data-intensive nature of AI training pipelines that require persistent, high-throughput object storage.
For Backblaze bulls, this is the partnership inflection the thesis has always needed — a proof point that B2 can win enterprise and AI-scale customers away from AWS S3, Azure Blob, and Google Cloud Storage on price and simplicity. BLZE has historically traded at a steep discount to larger cloud storage peers and has faced consistent profitability questions; a durable CoreWeave revenue stream could shift both metrics.
The bear case centers on deal concentration risk and execution. A single named partnership, however large, doesn't guarantee recurring revenue at scale — contract terms, volume commitments, and renewal risk are unknown. Backblaze has also historically struggled to convert headline partnerships into sustained margin improvement, and the stock's jump may already price in optimistic assumptions.
What to watch: any disclosure of contract value or revenue contribution in upcoming filings, CoreWeave's own scaling trajectory as a read-through to storage demand, and whether Backblaze can announce additional AI-ecosystem partnerships to confirm this is a trend rather than a single deal.
The case — both sides
A named storage partnership with CoreWeave — a hyperscale-adjacent AI compute provider that just IPO'd and is aggressively expanding GPU capacity — positions Backblaze's B2 as a credible, lower-cost alternative to AWS S3 in AI training pipelines, which could meaningfully expand both revenue and enterprise credibility.
Deal concentration risk is real: contract size, volume commitments, and renewal terms are undisclosed, and Backblaze has a track record of headline partnerships that have not historically translated into sustained margin improvement, leaving the post-pop valuation exposed if revenue contribution disappoints.
The house read
Leans bullBLZE surged on a CoreWeave AI storage deal, and the question is whether this partnership represents a genuine revenue inflection for the company or a sentiment-driven pop that outruns the underlying contract economics.
Wrong ifContract terms, volume minimums, and renewal clauses are undisclosed — if the deal is smaller or more episodic than the market assumes, or if CoreWeave's own scaling stalls, the pop reverses quickly. BLZE also has a history of profitability challenges that a single deal may not resolve.
Published read · research, not advice