Friday May 15, 2026 β OPEX Close
OPEX Bites. COR1M Pivots.
SPX β1.24% / VIX +6.78%. Scenario B starts to activate as index catches up to names.
π Friday's Story β The OPEX Bite
Monthly OPEX day delivered exactly the kind of move the framework warned about. SPX β1.24% to 7,408.50. VIX +6.78% to 18.43. Real selling, real protection bid. Two weeks of mechanical vanna unwinds got interrupted by a session where customers actually wanted vol exposure on the downside.
The decomp tells two stories at once. Sticky Strike +1.01 (DOMINANT) β mechanical lift from spot falling, totally expected. Then the customer flow: Put Skew +0.47 (puts BID), Call Skew (0.25) (calls eased). That's a clean protection-on signature, just with smaller convexity prints than Monday May 11's full collar. Parallel Shift (0.28) negative β but mechanical, not flow-driven. Sticky Strike's surge offset what would have been a bigger Parallel positive.
The big news is COR1M. Crashed all week toward 8.56 mid-week, then ripped +26.52% to 10.82 on Friday. Back above 10 for the first time in weeks. That's the dispersion-unwind signal we've been watching. Combined with VIXEQ easing while VIX ripped, the VIXEQβVIX spread compressed from 26.62 toward ~24.6. Index catching up to names β Scenario B starting to activate.
Caveat: one day doesn't break a regime, especially OPEX day where dealer hedge roll-offs add their own pressure. But the pivot signal is real and the catalyst window opens Tuesday (VIXpiration) and Wednesday (NVDA earnings). The asymmetric setup we identified Wed is now activating in real-time.
π In Plain English
Friday was an OPEX day and the market actually moved. SPX down 1.24%, VIX up nearly 7%. After two weeks of "spot up, vol up" and mechanical vanna unwinds, this looked like real selling and real protection-buying. Put demand was the cleanest flow signal of the day.
The bigger news is under the hood. Implied correlation (COR1M) β the metric that tells you whether stocks are running their own races or moving together β jumped 26.52% off its historic low. For the first time in weeks, names look like they're starting to move together a little. That's the early warning we've been watching for.
Bottom line: the framework we built Wednesday is starting to activate. Scenario B (index catches up to names) was 25% odds β Friday's price action and COR1M pivot moves that closer to 40%. Tuesday is VIXpiration. Wednesday is NVDA earnings. The catalyst window is live. Watch the flow.