Decision point · Sep 2018
Burry & cannabis — momentum vs fundamentals
Cannabis stocks ran 5× then collapsed 90%. The momentum-trap pattern was the one signal turning red.
Cannabis legalisation in Canada (Oct 2018) drove a thematic frenzy across pure-play producers. Tilray's September 19 2018 spike to $300 (from a ~$22 IPO three months earlier) was emblematic — story-driven momentum unhinged from cash flows.
“Cannabis stocks ran 5× then collapsed 90%. The momentum-trap pattern was the one signal turning red.”
Tilray fell from $300 in September 2018 to under $5 by 2023. Most pure-play cannabis names lost more than 90%. Pricing wars, oversupply, regulatory delays in the US, and persistent operating losses ground the sector down for five years.
At the September 2018 peak, a Prism memo would have flagged momentum_trap (price 95% through 52w range, no fundamental catalyst left) and dilution_risk (recent share issuance + cash burn). Multiple value frameworks would have rejected outright on the basic earnings/book screens. The disagreement classifier would have read momentum_vs_fundamentals with the bear camp dominant.
Patterns the engine would have flagged
- momentum_trap
- dilution_risk
Negative signals at the time
- Quality (operating losses)
- Valuation (price/sales > 100×)
- Event (no positive catalyst left to surprise)
“When every value framework rejects in unison, the multi-framework engine is screaming "no" — listen.”
The same multi-framework engine running on every memo today would have surfaced this as a majority-bearish disagreement at the decision point, not in retrospect.
Benjamin Graham
Graham (Defensive)
Negative earnings — disqualifies on the most basic Graham filter.
Joel Greenblatt
Magic Formula
Negative ROC and earnings yield — disqualifies.
Walter Schloss
Net-net
Trades at 100×+ tangible book — opposite of what Schloss would touch.
The momentum-trap pattern exists for setups exactly like this: price moving on theme, no fundamentals supporting the move, a fragile catalyst calendar. When every value framework rejects in unison, the multi-framework engine is screaming "no" — listen.
Primary sources
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