As of , published from Oct 16, 2026, 09:57 ET. The evidence table and the rule that fired are at squawkflow.com/options-flow/2026-10-16/spy-puts-oct-21-2026-put-call-skew, where the follow-up at the next settlement and at expiry is added once each is recorded. Source: Schwab options chain.
The median is SPY's put/call volume ratio for contracts within a week over the last 6 sessions. 5,025 put and 2,206 call contracts by 09:42 ET on Oct 16, 2026. Tracked: up to 40 strikes around the money across 33 expirations.
| Measure | Value |
|---|---|
| Call volume (contracts) | 2,206 |
| Put volume (contracts) | 5,025 |
| Call open interest, prior settlement | 37,784 |
| Put open interest, prior settlement | 26,199 |
| Call premium, est. (USD) | $468K |
| Put premium, est. (USD) | $959K |
| Put/call volume ratio | 2.3x |
| Days to expiry | 5 |
Count of contracts whose single last trade sat near the ask or bid. Not the side of the session's volume. It is not used in the headline.
| Side of chain | Near ask | Near bid | Other |
|---|---|---|---|
| Calls | 28 | 4 | 2 |
| Puts | 1 | 26 | 3 |
The median is SPY's put/call volume ratio for contracts 1 to 3 months out over the last 6 sessions. 41,279 put and 15,951 call contracts by 15:57 ET on Oct 16, 2026. Tracked: up to 40 strikes around the money across 32 expirations.
The median is SPY's put/call volume ratio for contracts 1 to 3 weeks out over the last 6 sessions. 157,210 put and 60,227 call contracts by 15:52 ET on Oct 16, 2026. Tracked: up to 40 strikes around the money across 33 expirations.
SPY puts expiring that date in the strikes we track traded 0.8x their open interest, by 09:52 ET on Oct 16, 2026. Tracked: up to 40 strikes around the money across 33 expirations.
Within 3 weeks: 386,752 put and 334,031 call contracts. 1 to 3 months out: 10,797 put and 4,303 call contracts. By 09:47 ET on Oct 16, 2026. Tracked: up to 40 strikes around the money across 33 expirations.
The median is SPY's put/call volume ratio for contracts 1 to 3 months out over the last 6 sessions. 5,076 put and 1,667 call contracts by 09:42 ET on Oct 16, 2026. Tracked: up to 40 strikes around the money across 33 expirations.
The median is SPY's call/put volume ratio for contracts within a week over the last 6 sessions. 3,462 call and 1,575 put contracts by 09:37 ET on Oct 16, 2026. Tracked: up to 40 strikes around the money across 33 expirations.