Supply/demand ratio & market depth
Balance keeps both sides liquid.
- Formula
- Active supply / active demand (or supply density per query)
- Unit
- ratio
- Models
- Marketplace
No public benchmark exists for this metric yet. This is where Omega Point's proprietary data will fill in.
What it is
Supply/demand ratio and market depth measure the balance between available supply and active demand on a marketplace at any point in time. Supply/demand ratio is: active supply units (listings, providers, inventory) ÷ active demand units (intentful sessions, buyer requests, active searchers). Market depth is a related concept — how many viable supply options exist per buyer intent, or how many buyers per unit of supply.
How to calculate it
Define what counts as "active" on both sides for your marketplace — this requires judgment about recency thresholds (e.g., a listing active in the last 30 days, a buyer session that included a search or inquiry). Compute the ratio across the entire marketplace or segment it by geography, category, or time-of-day depending on your matching dimensions. Track it over time and watch for systematic imbalances: ratios persistently above a certain level signal supply saturation; ratios that are too low signal supply scarcity and frustrated buyers.
Why it matters
Supply/demand balance is the core health signal for a marketplace's liquidity. A marketplace that is consistently oversupplied in one category or geography wastes supply-side attention and reduces earnings, leading to supply churn. One that is undersupplied frustrates buyers and reduces repeat purchase, leading to demand churn. Both sides trust the platform more when they consistently get what they came for. Maintaining the right ratio — what that is varies by marketplace type — is the operational problem underlying GMV growth.
How to read it
There is no cross-marketplace benchmark for supply/demand ratio. The metric is inherently per-market: the right ratio for a freelance services marketplace is completely different from a rental marketplace, a B2B procurement exchange, or a peer-to-peer goods market. Published figures do not exist in credible form because the definition of supply, demand, and balance differs by category, transaction type, and matching algorithm.
Omega Point does not propose a directional numeric estimate here — any figure would be confabulation. Instead, calibrate internally: identify the ratio range where your own liquidity and fill-rate metrics (match rate, time-to-match, repeat-side retention) are healthy, and treat that as your operational target. Segment the ratio by your most meaningful market dimensions and watch for divergence between categories.