Bullish Case: Known: MSFT term structure shows near-term IV ~60+ decaying to mid-30s by late 2026 (backwardation), and the historical return surface concentrates likelihood around +10% to +25% over multi-year holds. Call volume is higher, and Helium’s point forecast is slightly negative (-0.23%). Uncertain: earnings/guidance can turn uncertainty into upside; if IV crush occurs, a reclaim of 405–420 becomes plausible.

Bearish Case: Known: the MSFT IV surface is more skewed than SPY’s (front-end higher IV for lower strikes), and recent realized drift is negative (MSFT -13.6% vs 60d ago, -8.1% vs 90d ago). Option volume is low (~2nd percentile), limiting conviction. Your earlier rebound-to->10% calls underperformed; bearish risk exceeds bullish by 6% across tenors. Uncertain: a capex/margin scare could keep downside skew elevated, making 380→below 370 and persistent IV repricing more likely.

Potential Outcomes:

1. 38%: 380–410 range; falsifiable if term-structure IV keeps sliding and no close <380 or >410.
2. 27%: +5–8% to 405–425; falsifiable if put IV drops faster than call IV (skew flattens).
3. 22%: -5–10% to 360–385; falsifiable if earnings/guidance disappoints and close <390.
4. 13% tail: >+10% >430 or <350; falsifiable if front-tenor IV spikes >45.

July 28, 2026