Unusual OI growth shift toward calls
Where did the balance of call-versus-put OI growth shift unusually far toward calls on Oct 16, 2026?
Rising call OI with a growth advantage over puts, and a call-minus-put growth gap at least two standard deviations toward calls relative to its own prior year. The gap has its own standardized history; subtracting the separate call and put z-scores is not this measure. Requires 200 prior comparisons, 100,000 current contracts and 1,000 contracts on each side at the prior close. This measures the OI balance, not implied-volatility skew. Data through close. Descriptive only, not a recommendation.
At a glance
4 tickers qualified. First five: ETN (Calls +99.1% · puts -18.7% · gap +117.8 pp · gap +13.27σ), JBS (Calls +54.8% · puts -5.6% · gap +60.4 pp · gap +10.73σ), XBI (Calls +4.0% · puts -15.2% · gap +19.3 pp · gap +4.52σ), KNX (Calls +16.6% · puts -28.6% · gap +45.2 pp · gap +2.62σ).
| # | Ticker | Close | Open interest | Call / put growth and gap surprise |
|---|---|---|---|---|
| 1 | ETN | 391.25 | 123,796 | Calls +99.1% · puts -18.7% · gap +117.8 pp · gap +13.27σ |
| 2 | JBS | 13.03 | 198,146 | Calls +54.8% · puts -5.6% · gap +60.4 pp · gap +10.73σ |
| 3 | XBI | 144.32 | 565,719 | Calls +4.0% · puts -15.2% · gap +19.3 pp · gap +4.52σ |
| 4 | KNX | 64.81 | 161,941 | Calls +16.6% · puts -28.6% · gap +45.2 pp · gap +2.62σ |
Screens describe what the data shows after the close. They are not trade recommendations; see the disclaimer and the methodology.