Shock Inference Lab

Fitch downgrades US to AA+

2023-08-01 · United States · fiscal · severity 3/5

Fitch cites governance and debt path; long-end yields drift higher.

Pre/post market reaction

WindowUS 10Y ΔUS 10Y ΔSpread Δ
1d0.00pp0.00pp0.00pp
1w0.00pp0.00pp0.00pp
1m0.00pp0.00pp0.00pp
3m+0.05pp+0.05pp0.00pp

Yields at monthly resolution; sub-month windows interpolated. pp = percentage points.

Fiscal repricing

Moderate fiscal-driven move.

Inference scores

no-signal
confidence: high

No abnormal yield movement detected after factor-model controls.

Early warning29/100

Abnormal yield move before the event (90d proxy).

Reaction29/100

Abnormal yield move after the event (1m / 3m).

Constraint42/100

Lead/lag band: no-signal.

Amplification0/100

Post-event move beyond pre, on a crisis backdrop.

Confidence70/100

Severity × benchmark coverage × data coverage.

v1 scores use a simple factor model on monthly yields. See docs/METHODOLOGY.md.

AI Inference

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