Surf Air Mobility Beats Q1 EBITDA Guidance, But Default and Cash Burn Risks Persist

What happened

Surf Air Mobility reported Q1 2026 adjusted EBITDA that exceeded its guidance, a result management framed as a win. However, the company's cash position remains precarious, with $7.1 million at September 2025 and ongoing operating cash outflows of $45.8 million through nine months of 2025. The company is still in default on $8.9 million in federal excise taxes and other obligations, and SurfOS remains in beta with no disclosed paying customers. The EBITDA beat likely stems from cost controls or one-time items rather than a structural improvement in the airline's unit economics. Until defaults are cured and software revenue materializes, this outperformance is insufficient to justify the current equity valuation.

Implication

While the adjusted EBITDA outperformance is encouraging, the fundamental thesis remains grounded in the ability to cure defaults and monetize SurfOS. Without progress on these fronts, the stock remains a sell. Investors should watch for updates on tax and debt defaults in the next filing.

Thesis delta

The Q1 EBITDA beat adds a modest positive data point, but does not shift the bearish thesis. The key metrics remain cash burn, default resolution, and SurfOS commercialization. We maintain our negative outlook until those are addressed.