Precedent · Pandemic
COVID-2020 Shock
2020
The fastest crash and fastest recovery on record. A global shutdown collapsed demand in weeks; unprecedented fiscal + monetary response drove a V-shaped rebound in markets within months, though sector effects were highly uneven.
The signature
Each variable's peak deviation from the pre-event baseline, with the curve shape, the lag before it moved, and how long the recovery ran.
| Variable | Peak deviation | Shape | Lag / Recovery | Confidence |
|---|---|---|---|---|
| Unemployment Rate 3.5% → 14.7% in one month (Apr 2020) | +320% | Spike | 30d lag · 365d | high |
| S&P 500 Feb 19 → Mar 23 2020; recovered by Aug | −34% | V | 0d lag · 150d | high |
| Real GDP Q2-2020 collapse + sharp recovery | −10% | V | 30d lag · 270d | high |
| Brent Crude Brent ~$67 → ~$19; WTI briefly negative Apr 20 | −70% | V | 30d lag · 200d | high |
| High Yield OAS HY OAS ~3.5% → ~11% Mar 2020; Fed compressed fast | +230% | Spike | 20d lag · 150d | high |
| VIX VIX ~15 → ~82 Mar 16 2020 | +290% | Spike | 20d lag · 120d | high |
Methodology
Encoded as peak deviations from the February-2020 baseline. The signature is speed: equities −34% in five weeks, VIX to ~82, HY spreads to ~11% then compressed by the Fed, oil collapsing (Brent ~−70%; WTI briefly negative), unemployment spiking 3.5%→14.7% in one month. Shapes are mostly V (sharp drop, sharp recovery) — the opposite of 2008's U.
What's different now
COVID's recovery speed was a function of a one-time, enormous fiscal + monetary response and a shock with a visible end (vaccines). A future demand shock without that policy backstop would look more U than V. Use COVID for the shape of a sharp, policy-rescued shock, not as a template for every crash.