Unusual OI growth shift toward calls
Where did the balance of call-versus-put OI growth shift unusually far toward calls on Oct 9, 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
3 tickers qualified. First five: KNX (Calls +185.1% · puts +0.1% · gap +185.0 pp · gap +14.97σ), URA (Calls +6.4% · puts -2.3% · gap +8.6 pp · gap +2.21σ), SBUX (Calls +4.3% · puts +0.9% · gap +3.4 pp · gap +2.13σ).
| # | Ticker | Close | Open interest | Call / put growth and gap surprise |
|---|---|---|---|---|
| 1 | KNX | 64.47 | 137,187 | Calls +185.1% · puts +0.1% · gap +185.0 pp · gap +14.97σ |
| 2 | URA | 38.90 | 422,666 | Calls +6.4% · puts -2.3% · gap +8.6 pp · gap +2.21σ |
| 3 | SBUX | 90.75 | 489,122 | Calls +4.3% · puts +0.9% · gap +3.4 pp · gap +2.13σ |
Screens describe what the data shows after the close. They are not trade recommendations; see the disclaimer and the methodology.