Patient Zerocontagion autopsy for market shocks
Explains — not advice

Hertz Global

HTZEquity
Contagion
67/100

Hertz Global (HTZ) — a narrative-driven contagion (score 67/100). A 31.8% move over 1 session on 3.3× volume; the social signal led the price by 3 days across 3 languages.

Index case
Jun 2, 2020
r/wallstreetbets
Signal → event
3 days
shock Jun 5, 2020
Move
+31.8%
3.3× volume
Cross-language
2 jumps
3 countries
Transmission — communities · countries · languages
USDEKRshockamplifier · 25.6hcommunity jump · 25.8hcommunity jump · 25.6hlanguage jump · 8.8hlanguage jump · 25.7hamplifier · 33.8hcommunity jump · 53.6hamplifier · 40.8hr/wallstreetbets · US/ENr/wallstreetbets · US/ENStockTwits $HTZ · US/ENX / fintwit · US/ENwallstreet-online.de Forum · DE/DE네이버 종목토론방 (HTZ) · KR/KOr/wallstreetbets · US/ENBloomberg Markets · US/ENr/wallstreetbets · US/ENMay 26, 2020Jun 7, 2020Jun 19, 2020
index case early peaklanguage / country jump

Each row is a community/country; every dot is a real post placed on the UTC timeline and shaded early → peak; cyan lines trace the narrative jumping across a language or border. The dashed shock line marks when price actually moved — dots to its left are the contagion forming before the market reacted, which is the lead this autopsy is built to expose.

Spread-rate6 communities · 3 languages
May 26Jun 19
communities languages
Pricebackdrop — not the point
2.960.56May 26Jun 19
▶ Counterfactual replay
Case report
01
Outcome
Hertz Global (HTZ) — a narrative-driven contagion (score 67/100). A 31.8% move over 1 session on 3.3× volume; the social signal led the price by 3 days across 3 languages.
02
Index case
Patient zero: a retail post in r/wallstreetbets (English, US) at 2020-06-02T13:45:00Z. “Hear me out: $HTZ already filed Chapter 11, so it's basically a free lottery ticket. Downside is zero (it's already zero), upside is a 10-bagger if the bankruptcy plan leaves anything for shareholders. Everyone's piling in. YOLO. 🚗🚀”
03
Transmission timeline
The narrative touched 6 communities, 3 languages and 3 countries: 5 cross-community and 2 cross-language jumps, median language-jump latency 17.3h.
04
Spread-rate curve
Cumulative reach grew to 9 posts across 6 communities and 3 languages by 2020-06-12.
05
Signal → event offset
Signal onset (2020-06-02) led the 31.8% move (2020-06-05) by 3 days.
06
Early-warning
With 2 cross-language jumps forming, an early-warning would have fired ~3 days before the move.
07
Verdict
All three discriminators clear: a qualifying shock, a leading signal, and cross-language spread.