How to Compare Composite vs Direct LP
A structured framework for evaluating composite liquidity aggregation against direct LP relationships. Includes a factor-by-factor comparison, decision criteria, and guidance on when each model is appropriate.
Overview
The choice between composite liquidity (aggregated from multiple LPs via a broker) and direct LP access (bilateral relationship with a single liquidity provider) is one of the most consequential execution decisions. This playbook provides a systematic framework for evaluation, not a recommendation -- the right choice depends on your specific trading profile, volume, and priorities.
Factor-by-Factor Comparison
| Factor | Composite | Direct LP | Notes |
|---|---|---|---|
| Spread tightness | Composite aggregates best-of across LPs; direct relies on single relationship | ||
| Depth of book | Multiple LP depth stacked; single LP limited by their internal risk limits | ||
| Fill rate stability | Composite has fallback LPs; direct may offer firm pricing (no last look) | ||
| Execution speed | Aggregation adds processing time; direct connection has fewer hops | ||
| Transparency of pricing | Composite obscures which LP filled; direct provides clear counterparty | ||
| Customization | Composite is one-size-fits-all; direct LP can tailor pricing to your flow profile | ||
| Counterparty diversification | Spread across many LPs; concentrated on single relationship | ||
| Markup transparency | Hard to decompose composite spread; direct markup is more visible | ||
| Minimum volume requirements | Low barriers via broker aggregation; direct LP access requires significant volume | ||
| Setup complexity | Broker handles everything; direct requires FIX connectivity and credit arrangements |
When Composite Liquidity Is Better
- Retail and small institutional accounts that don't meet minimum volume requirements for direct LP relationships (typically $50M+ monthly notional).
- Diversification priority: When reducing counterparty concentration risk is more important than per-trade optimization.
- Multi-pair trading: Composite aggregation provides consistent pricing across many currency pairs; direct LP relationships may only offer competitive pricing in their core pairs.
- Operational simplicity: When you prefer the broker to manage LP relationships, FIX connectivity, and credit arrangements.
When Direct LP Access Is Better
- High-volume, single-pair focus: If you trade large volume in specific pairs, a direct LP can tailor pricing to your flow profile.
- Latency sensitivity: Direct connections eliminate aggregation processing time and reduce total hops.
- Pricing transparency: When you need to see exactly who fills your order and at what price, without broker markup ambiguity.
- Negotiated terms: Direct relationships allow negotiating hold times, rejection policies, and pricing tiers based on your specific flow characteristics.
Evaluation Process
- Quantify your profile: Monthly volume, typical order size, pairs traded, time-of-day distribution.
- Request execution data: Ask both composite broker and potential direct LP for sample execution reports -- fill rates, slippage distribution, rejection rates.
- Calculate effective cost: Raw spread + commission + expected slippage + rejection cost. Compare total effective cost, not just quoted spread.
- Test in parallel: If possible, run a portion of flow through each model for 30+ days and compare empirical results.
- Consider operational cost: Direct LP access requires FIX infrastructure, credit arrangements, and ongoing relationship management. Factor these into total cost of ownership.
Related Reading
For deeper technical context, see the Atlas entries on Composite Liquidity, Direct LP Access, and the Composite Liquidity Aggregation Diagram.
Educational content only. This is not financial advice. Always consult qualified professionals before making trading decisions.