Inside a Multi-Rail Allocation
European HNW portfolio observed across 18 months — December 2024 through April 2026
- +118 bps structural efficiency observed
- Remained observable after removal of the three highlighted transactions
- Persisted throughout the observation period
- Represented 41% of total observed excess return
Hover for monthly detail. Shaded band isolates +118 bps structural efficiency layer — continuous and architecture-dependent. Three deal closings amplify episodically above the band.
| Driver | Contribution | USD | Share |
|---|---|---|---|
| Structural Efficiency — continuous, architecture-dependent | |||
| Settlement cost and slippage reduction | +68 bps | $313,000 | 23% |
| Reduced operational cash drag | +31 bps | $143,000 | 11% |
| Shock buffer performance — October 2025 | +19 bps | $87,000 | 7% |
| Subtotal — Structural Efficiency | +118 bps | $543,000 | 41% |
| Deal Amplification — episodic, transaction-dependent | |||
| Deal timing and execution — 3 cross-border closings | +172 bps | $791,000 | 59% |
| Total observed excess return | +290 bps | $1,334,000 | 100% |
Excluding deal events, structural efficiency alone contributed +118 bps — architecture-dependent, not transaction-dependent.
The observed excess return comprises two distinct components: +118 bps of continuous structural efficiency, excluding the contribution of the three highlighted transactions, and +172 bps amplified by execution velocity in three cross-border closings.
Removing those transactions from the analysis leaves a persistent structural baseline of +118 bps attributable to the architecture under the counterfactual framework.
Returns measured on real portfolio performance, December 31, 2024 through April 30, 2026. Counterfactual benchmark constructed using identical asset allocation under traditional banking-only settlement architecture, applying the client’s pre-rebalance settlement times and friction costs (5.4 days average; 61 bps average) to the same transaction record. Counterparty windows that fell outside traditional rail timing (48–72 hours) are modeled as either deal abandonment or execution at observed alternative-bid prices.
Volatility metrics annualized from daily NAV observations. Attribution distinguishes between structural efficiency (continuous, architecture-dependent) and deal amplification (episodic, transaction-dependent).
Single client case. Results reflect a specific portfolio configuration and operating environment. Not a projection of future performance.
Published with client consent. Additional engagements remain under NDA.
AueraFin does not manage client assets or hold custody. Capital architecture advisory only.