Sovereign Debt Risk

Global Bond Sell-Off & Duration Stress Simulator

Inspired by Mohamed El-Erian (CNBC): “Global bond sell-off likely not over yet” — Fiscal supply indigestion, sticky core inflation, elevated r*, and term premium spikes.

El-Erian Macro Catalyst Presets

Portfolio MTM Loss
-4.82%
-$482,150 on $10M
Mod. Duration
8.14 yrs
Macaulay: 8.35 yrs
Effective Convexity
112.4
Cushion: +0.24%
10Y Benchmark Stress
4.73%
+45 bps shock

Sovereign Yield Curves: Baseline vs. Stressed

Baseline (Current)
Stressed (+Shock)

Yield Curve Basis-Point Shocks (Δy)

Global or Tenor Specific
2-Year Tenor +15 bps
5-Year Tenor +30 bps
10-Year Benchmark +45 bps
30-Year Long Bond +70 bps

Sample Portfolio ($10,000,000 USD)

100% Allocated
Asset / Maturity Alloc % Mod Dur Est. Price Δ Drawdown

Mohamed El-Erian's 4 Sell-Off Drivers

CNBC guest Mohamed El-Erian highlights that the sell-off in sovereign debt markets is supported by secular structural changes rather than temporary cyclical noise:

  • Fiscal Supply Indigestion: Trillions in multi-year deficit financing force unprecedented supply auctions into private markets as central banks undergo QT.
  • Sticky Services Inflation: Wages and services prevent central banks from rapidly returning to ultra-low rates, repricing front-end expectations higher.
  • Higher Real Neutral Rate (r*): Geopolitical re-shoring, green energy capital transition, and demographic aging push real equilibrium yields upwards.
  • Term Premium Expansion: Investors demand meaningful compensation to hold long-duration paper against sovereign debt sustainability risks.

Sovereign Spillover Beta Matrix (10Y Yield Transmission)

Empirical regression beta during global US Treasury sell-off episodes:

Anchor Yield US Treasuries German Bunds UK Gilts Japan JGBs
US 10Y Shock (+100 bps) 1.00x 0.72x (+72 bps) 0.88x (+88 bps) 0.31x (+31 bps)
Bund 10Y (+100 bps) 0.64x 1.00x 0.78x 0.24x
Gilt 10Y (+100 bps) 0.58x 0.66x 1.00x 0.19x
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