The VIX climbed 6.83% to 18.15 through the Monday session, driven by aggressive May and June S&P 500 put accumulation that pushed the SPX put-to-call ratio to 1.42 — the highest reading since October's regional banking scare. The 6,950-7,000 strike cluster traded roughly 4.6 times the 21-day average daily volume, indicating systematic institutional hedging rather than speculative activity.
The VIX term structure flattened sharply: the front-month versus four-month spread compressed to 0.85 points from 2.10 at Friday's close — the flattest configuration since November 4, and a setup classically associated with hedger demand running ahead of dealer supply. The Cboe SKEW index rose to 152.4 from 145.6, signaling out-of-the-money put richness even as at-the-money implied volatility moved higher.
Dual Catalysts
Two converging forces drove the hedging impulse. First, the escalation of the Iran conflict into Day 67, with overnight Israeli strikes on Bandar Abbas naval installations and the U.S. launch of Operation Sentinel Passage through the Strait of Hormuz. Second, Friday's March PCE print of 2.7% headline and 2.6% core year-on-year — both 10 basis points above consensus — which catalyzed a hawkish repricing of Fed expectations. CME FedWatch now prices only 38% probability of a June 17 rate cut, down from 52% a week ago.
Cross-Asset Impact
The S&P 500 held roughly flat at 7,230 (+0.1%), while the Dow shed 100 points (-0.2%). The Russell 2000 was the notable outlier, printing a new all-time intraday high on small-cap domestic energy exposure. Dollar Index DXY hit 105.20 — a 2026 high — pressuring EUR/USD to 1.1696 and gold to $423.18 per ounce. The 2-year Treasury yield rose 6 basis points to 4.21%.
Outlook
Goldman Sachs strategist Cecilia Mariotti raised her three-month VIX