Patient Zerocontagion autopsy for market shocks
Explains — not advice

Grom Holdings

GROMEquity
Quiet — fizzled
11/100

Grom Holdings (GROM) — chatter spiked but NO contagion formed (score 11/100, QUIET). Largest single session 9.1%, peak volume 1.5×.

Index case
Mar 1, 2022
r/wallstreetbets
Signal → event
no shock
Move
no qualifying shock
Cross-language
0 jumps
2 countries
Transmission — communities · countries · languages
USUKcommunity jump · 24.6hcommunity jump · 22.6hcommunity jump · 27.3hamplifier · 69.3hamplifier · 50.3hcommunity jump · 42.8hamplifier · 76.4hamplifier · 98.3hr/wallstreetbets · US/ENStockTwits $GROM · US/ENr/Shortsqueeze · US/ENX / fintwit · US/ENStockTwits $GROM · US/ENr/wallstreetbets · US/ENr/UKInvesting · UK/ENStockTwits $GROM · US/ENr/Shortsqueeze · US/ENMar 1, 2022Mar 11, 2022Mar 21, 2022
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-rate5 communities · 1 languages
Mar 1Mar 21
communities languages
Pricebackdrop — not the point
2.512.12Mar 1Mar 21
▶ Counterfactual replay
Case report
01
Outcome
Grom Holdings (GROM) — chatter spiked but NO contagion formed (score 11/100, QUIET). Largest single session 9.1%, peak volume 1.5×.
02
Index case
Patient zero: a retail post in r/wallstreetbets (English, US) at 2022-03-01T14:42:00Z. “$GROM is the next GME and nobody is watching. Float is tiny — like 30M shares — and short interest is reportedly north of 25%. Utilization is pegged at 100%. This is a coiled spring. 🚀”
03
Transmission timeline
The narrative touched 5 communities, 1 languages and 2 countries: 4 cross-community and 0 cross-language jumps.
04
Spread-rate curve
Cumulative reach grew to 9 posts across 5 communities and 1 languages by 2022-03-18.
05
Signal → event offset
No qualifying market event to offset against.
06
Early-warning
Early-warning would have stayed QUIET — the cross-language and volume ingredients never appeared.
07
Verdict
No qualifying price shock (largest single session 9.1% < ±20%). No cross-language spread. No volume confirmation (peak 1.5× < 3× average).