Sovereign Debt Sustainability Assessment
United States's sovereign debt profile generates a SIGMA score of 56.0/100 in the ACCUMULATION regime — reflecting moderate fiscal pressures within manageable parameters.
The SIGMA Engine v5.0 derives this score from eight deterministic analytical layers: metabolic lifecycle entropy (β=1.264, biological age 193 months), structural fragility (Minsky phase: hedge), NLP narrative divergence (0.0%), network contagion (R₀=1.665, percolation intact), and predictive signals (CSD=40.0, Hawkes λ=0.1000).
Regime probability distribution as of 2026-06-10: stable 13.6% / accumulation 28.2% / critical 28.2% / collapse 30.1%. The Hurst exponent of 0.622 indicates strong trend persistence — risk trajectory statistically likely to deepen.
Active risk signals driving the sovereign debt sustainability score:
Based on Markov chain transition probability from current ACCUMULATION regime. Kairos arbitrage window: 31 days.
Methodology: SIGMA scores are deterministic (identical inputs = identical outputs). Data sources: Federal Reserve FRED, GDELT geopolitical entropy, GLEIF corporate ownership network, Stooq price data. Not financial advice — for informational and research purposes only. Verify predictions: /predictions.