Bullish Case: SIGA at $3.10 is ~54% below two-year levels and near Helium PDF mass at $3.40-$4.40. Backwardated term structure (Oct 17: 289% market IV collapsing to 58.6% by Dec 19) plus heavy Jan 2027 $8.80 call volume (1,528 contracts) signals event-driven upside. A BARDA/procurement award could squeeze an illiquid float sharply.

Bearish Case: Single-product revenue dependence and a 3.0x price-to-book leave little support if government contracts slip. Helium PDF density peaks at $3 (0.345) and $2 (0.293), while deep $2-$3 puts carry 227-500% IV — the market is pricing severe left-tail risk. Recurring negative catalysts have validated bearish calls repeatedly.

Potential Outcomes:

1. 35% — Sideways drift $2.80-$3.40 through Dec 19; matches Helium/Market PDF peak density; falsifiable by close outside band.
2. 20% — Positive catalyst (BARDA/procurement) → $4.00-$5.00; falsified by no confirmed contract within ~90 days.
3. 20% — Negative catalyst (contract loss/guidance cut) → $2.00-$2.60; falsified by absence of adverse headlines.
4. 15% — IV compression with muted price (term structure normalizes from 289% to ~59%); falsified if Oct IV stays >200%.
5. 8% — Severe binary adverse event below $2.00; falsified by no material filing.
6. 2% — Acquisition premium above $5; falsified by no deal filing within 180 days.

October 15, 2026