Backblaze's AI Narrative Gains Traction, But Proof Lags Hype

What happened

Wall Street is increasingly viewing Backblaze as an AI infrastructure beneficiary, following a $335M CoreWeave agreement and strong Q1'26 results that showed 12% revenue growth and a 60% surge in adjusted EBITDA. However, the DeepValue report reveals that the CoreWeave contract is utilization-dependent and termination-conditional, not locked-in revenue, while B2 NRR of 110% and gross margin of 61% (partly from accounting changes) need to hold post-May 1 pricing adjustments. AI/hyperscaler traffic share dropped to 25.5% in Q1 from 36.4% in Q4, signaling volatile consumption patterns that challenge the narrative of sustained growth. Operating leverage is partially driven by a depreciation-life extension and restructuring costs that continue through Q1'27, indicating margin quality is still in question. The stock at $11.60 prices in a seamless AI ramp that requires observable B2 consumption and CoreWeave utilization signals in coming quarters to justify the valuation.

Implication

The article's bullish narrative overlooks that CoreWeave's $335M TCV is not guaranteed revenue and that Q1's margin benefit from accounting changes may not repeat. Long-term: The thesis hinges on B2 NRR staying above 110% and gross margin above 59% post-May pricing changes, and on CoreWeave disclosing tangible capacity additions. If those are confirmed, the stock could re-rate toward $15.50, but if they fail, downside to $8.00 is likely. The DeepValue report's WAIT stance is appropriate: neither add nor exit until the next two quarters provide clarity. Investors should monitor network telemetry for AI traffic share stabilization and watch for warrant vesting tied to CoreWeave's contracted storage. The risk of capital impairment is real if AI workloads compress margins or competitive pressure emerges, so position sizing should reflect the limited margin of safety at current levels.

Thesis delta

The shift is from viewing Backblaze as a legacy backup company to an AI infrastructure play, but the filing details reveal the story is more nuanced: the CoreWeave deal is not a fixed revenue stream, and margin quality is inflated by accounting changes. The market is pricing in a seamless transition, but the company's own disclosures show volatility in AI traffic and reliance on cost discipline—meaning the investment case now requires fundamental proof, not just narrative.