Bullish Case: SNPS bounced +8.1% off $378 last week to $409 with flat tape, calls out-trading puts 5%, and Helium's +2.28% forecast plus the term structure showing 24-33% Helium IV vs 52-48% market IV at the front—event anxiety is overpriced. If the September 26 expiry passes calmly and the $400 floor holds, IV bleed plus AI/EDA demand, Nvidia ties, and Ansys synergies support a grind toward $430-450. ABR 1.59 confirms buy-side conviction.

Bearish Case: SNPS remains down 16.5% YoY and 10% over 90 days; the front-end Helium term-structure spike (79% on 9/26 fading to 24-38%) plus deep-OTM put IV at 73-99% signals persistent latent break risk. Post-Ansys hangover, September layoffs, China export restrictions, or SPY risk-off (SPY surface shows fat downside tails) could re-break $400 and force continuation toward $360-380 as sellers chase protection.

Potential Outcomes:

1. Flat $395-425 (35%): chop persists; Helium-vs-market IV gap compresses; falsified by a close outside the band.
2. Grind +5-10% to $430-450 (28%): $400 holds, front IV decays; falsified if IV stays >50% into October.
3. Miss/guide-cut -5-15% (20%): layoffs/export headlines; falsified if put-IV flattens.
4. Recovery >+12% (10%): strong AI/EDA catalyst.
5. Systemic drop <-15% (7%): SPY vol spikes, decoupling risk.

Oracle: sell rich front-end IV via put credit spreads (small size); exit fast if $400 breaks.

September 23, 2026