Bullish Case: CDNS bounced 8.2% in a week to $302.95 and now sits near the Helium density peak (~$295–300), where Helium's PDF assigns the highest probability mass. The Helium forecast is +2.28% and calls now outvolume puts by 49%, a flip from months of put dominance. The term structure is backwardated (73.5% front vs ~43–45% out-months), so event premium can decay quickly if spot stabilizes, favoring a grind back toward $310–320.

Bearish Case: CDNS is still down 17.7% over 90 days, -17.3% YoY, with a demanding 16.1x book. Market IV jumps from ~39% to ~46% at the Oct-31 expiry, implying a known late-October event (earnings) carrying repricing risk. Helium's density shows a fat left tail below $280 and historical correlation between the Helium forecast and realized price is negative (-0.2), arguing against extrapolating the bounce. Mean-reverting price action cuts both ways.

Potential Outcomes:

1. Stabilization/grind (40%): CDNS drifts $295–320; backwardated front IV (73.5%→~40s) decays. Falsified by a close below $290.
2. Late-Oct event sell-off (25%): guidance/macro pushes -10% to $270–285; put-wing IV spikes. Falsified by IV compression with spot >$300.
3. Event beat rally (15%): +8–12% toward $330–340 on EDA/AI demand; call IV lifts (12/18 400C at 46.9% IV). Falsified if spot stalls <$310 post-event.
4. Macro drawdown (15%): SPY vol expansion drags CDNS to $260–275.
5. Idiosyncratic shock (5%): gap below $260 with extreme skew.

Oracle: mildly constructive; defined-risk put spreads or call debit spreads fit the backwardated curve; avoid naked short vol into the late-October expiry.

September 23, 2026