Sovereign Fiscal Quality Index (SFQI-40)
Institutional Methodology Specification & Performance Factsheet
As of October 26, 2026
Base: 100.00 · USD
1. Executive Summary & Investment Objective
The Debt-Weighting Moral Hazard
Traditional global sovereign bond benchmarks (e.g., Bloomberg Global Aggregate Treasury, FTSE World Government Bond Index) weight constituents by nominal gross debt outstanding. Consequently, governments with runaway fiscal deficits and ballooning borrowing receive the highest capital allocations (US ~37.0%, Japan ~11.0%), exposing passive portfolios to acute adverse selection and structural currency drag.
The Solvency-Disciplined Solution
The Sovereign Fiscal Quality Index (SFQI-40) breaks this structural flaw. Covering 40 sovereign debt issuers across Developed (25) and Emerging (15) markets, the index reallocates capital strictly based on fiscal balance-sheet quality, interest affordability, and liquid refinancing reserves, enforcing a strict 15.0% maximum concentration cap and a 0.25% floor.
2. Quantitative Construction & Scoring Model
| Factor Name | Weight | Exact Mathematical Formulation | Economic Rationale |
|---|---|---|---|
| Debt-Service Burden (DSB) | 40.0% | DSB_i = Interest Payments / Fiscal Revenue | Measures fiscal revenue absorbed by debt interest service (Lower is better). |
| Primary Fiscal Discipline (PFD) | 30.0% | PFD_i = Primary Budget Balance / Nominal GDP | Rewards structural primary surpluses and penalizes deficits (Higher is better). |
| Refinancing & Vulnerability (RVR) | 30.0% | Dev: Maturing ≤12M / Cash | EM: Ext Debt / FX Reserves | Captures immediate rollover risk and external currency mismatch (Lower is better). |
Z_clipped = clip((x - μ) / σ, -3.0, +3.0)
Composite_Z = -0.40*Z_dsb + 0.30*Z_pfd - 0.30*Z_rvr
FQS_i = clamp(50.0 + 16.67 * Composite_Z, 0, 100)
M_i = exp(0.50 * Composite_Z_i)
W_raw,i = W_gdp,i * M_i
Enforce: 0.250% ≤ W_i ≤ 15.000%, ΣW_i = 100.000%
3. Universe, Governance & Benchmark Specifications
4. Active Allocation & Constituent Profiles
Comparison between SFQI-40 Solvency Weights vs. Traditional Debt Market-Cap Benchmark:
| Country / Sovereign | Bucket | FQS Score | Gross Debt ($Bn) | Benchmark Wgt | SFQI Wgt | Active Δ | 10Y Yield |
|---|---|---|---|---|---|---|---|
| Germany (DE) | developed | 53.1 | $2,920B | 3.06% | 7.59% | +4.54% | 2.31% |
| Saudi Arabia (SA) | emerging | 66.2 | $305B | 0.32% | 2.74% | +2.42% | 4.86% |
| South Korea (KR) | developed | 54.9 | $1,010B | 1.06% | 3.26% | +2.21% | 3.12% |
| Australia (AU) | developed | 54.6 | $990B | 1.04% | 3.10% | +2.06% | 4.22% |
| Mexico (MX) | emerging | 50.3 | $960B | 1.01% | 2.77% | +1.76% | 9.78% |
| United Kingdom (GB) | developed | 34.5 | $3,520B | 3.69% | 3.31% | -0.38% | 4.16% |
| China (CN) | emerging | 50.2 | $15,200B | 15.92% | 15.00% | -0.92% | 2.14% |
| Italy (IT) | developed | 36.0 | $3,210B | 3.36% | 2.31% | -1.05% | 3.56% |
| Japan (JP) | developed | 24.4 | $10,520B | 11.02% | 2.94% | -8.07% | 0.96% |
| United States (US) | developed | 16.5 | $35,300B | 36.97% | 15.00% | -21.97% | 4.24% |
5. Historical Performance & Risk Metrics
| Regime Strategy | Inception (2016) | Latest (2026) | 10Y Return | Benchmark | Alpha Spread | Max Drawdown |
|---|---|---|---|---|---|---|
| SFQI-40 (USD Hedged) | 100.00 | 135.80 | +35.80% | +16.20% | +1,960 bps | -11.21% (vs -16.81%) |
| SFQI-40 (Unhedged USD Spot) | 100.00 | 129.40 | +29.40% | +7.15% | +2,225 bps | -14.66% (vs -24.81%) |