BLZE Q2 Beat Lifts 2026 Outlook on AI Storage Growth, but CoreWeave Revenue Recognition and Margin Questions Linger

What happened

Backblaze's Q2 earnings beat expectations and management raised its full-year 2026 outlook, citing accelerating AI storage demand and early contributions from the CoreWeave partnership. The $335 million CoreWeave deal, effective mid-June, adds multi-year revenue visibility, but the company has not yet clarified the revenue recognition treatment or whether the new guidance formally includes CoreWeave revenue. While the raised outlook signals improving momentum, investors should note that first-quarter gross margins benefited from a depreciation reduction due to useful-life extensions, and AI-heavy workloads could pressure future margins as hardware wear accelerates. The post-May 2026 B2 pricing change remains a critical test of customer retention, with B2 net revenue retention at 110% in Q1 but potentially at risk if price-sensitive customers churn. Until CoreWeave revenue is concretely recognized and B2 retention shows durability, the stock's elevated multiple embeds aggressive assumptions that warrant caution.

Implication

The raised outlook and multi-year CoreWeave visibility strengthen the bull case, but without auditable revenue recognition and evidence that AI workloads won't erode margins, the stock is priced for perfection. Investors should monitor the next two quarterly disclosures for concrete proof of CoreWeave revenue contribution and stable B2 retention before adding exposure.

Thesis delta

Q2 results indicate that AI storage demand is accelerating faster than previously expected, prompting a raised outlook. However, the core uncertainties—CoreWeave revenue recognition, margin sustainability, and B2 retention after the May pricing change—remain unresolved. The investment thesis is intact but still requires confirmation over the next two quarters.