Livestock Disease — New World Screwworm → Cattle-Supply Shock & Protein Rotation
Livestock Disease — New World Screwworm → Cattle-Supply Shock & Protein Rotation
active thesis
A biological supply shock to the US cattle herd (New World Screwworm, first US case in ~60 years confirmed by USDA APHIS 2026-06-03 — a calf in Zavala County, TX) layered on an already-fragile base (herd at a 75-year low; record beef ~$6.89/lb ground; southern border closed to live-animal imports since May 2025). Transmits two ways: (1) ANIMAL-HEALTH DEMAND PULL (clean, durable leg) — livestock herd-health/parasiticide spend; cleanest listed beneficiary is ELAN (Elanco), livestock-weighted (~47% farm animal, cattle ~23% of revenue), the only name with a named emergency-authorized NWS product (Negasunt/Tanidil), +15% rev growth, raised FY26 guide, analyst strong_buy — and it also has poultry+swine segments, so it WINS WHICHEVER PROTEIN WINS (structural cross-protein hedge). (2) PROTEIN ROTATION (conditional leg) — a real cattle-supply contraction lifts beef and pushes substitution to chicken/pork/eggs. KEY DISCIPLINED FINDING (2026-06-04): the rotation is NOT in the tape yet — the whole protein/animal-health complex is in a CORRELATED drawdown (poultry PPC -43%, WING -63%, plant-based BYND -90% from highs) under a consumer/GLP-1 bear that swamps the beef signal; there is no…
Watch for: ESCALATION (→ high): any screwworm detection beyond the USDA 20km infested zone, multiple detections, or spread into the feedlot/cow-calf belt — the trigger that produces hurt-down/alternatives-up dispersion. DE-ESCALATION (→ monitoring/retire): USDA contains it (sterile-fly eradication, as in 1966) with no further out-of-zone detections → animal-health tailwind stays modest and the rotation never fires. ELAN Q2 2026 print (~early Aug): cattle-segment growth, whether NWS parasiticide use shows in the numbers, deleveraging/clean-EPS progress, Pet Health (the larger 52% half). Re-run the livestock-disease tape on any escalation to confirm dispersion before upgrading priority or paper-trading.
The thesis basket — the 7 tickers this perspective actually tracks. Everything else it has touched is folded below.
The Thread
The thesis as it unfolds — by source type (the symbol grid above is the current state).
Recent Shifts
4Signals
1Elan Desk Call Invalidation Fires — Divergence Signal
Market signal state changed.