Scalability (Rev vs Exp)
Tier 2 · Engine Room · 1.0× weightIs revenue growing faster than costs?
Measures the operating leverage delta — the spread between revenue growth and total operating expense growth on a year-over-year basis. A positive delta signals that incremental revenue is being generated at proportionally lower marginal cost, confirming the business model scales. A negative delta means cost structure is expanding faster than the top line, mechanically compressing future margin potential regardless of headline revenue growth. This is the operational test of whether a growth narrative is financially sustainable.
A business that can't grow margins as revenue scales will eventually hit a ceiling where more revenue just means proportionally more losses. Operating leverage is what separates truly scalable businesses from growth-at-any-cost stories.
Universal thresholds apply. A positive delta above +10pp is ideal regardless of sector. The principle that a scalable business should grow revenue faster than costs is universal — what changes by sector is the baseline cost structure, not the logic.
Revenue growing significantly faster than expenses — strong operating leverage
Revenue and costs growing roughly in lockstep
Costs dramatically outpacing revenue — compressing margins