As of , published from Oct 15, 2026, 09:52 ET. The evidence table and the rule that fired are at squawkflow.com/options-flow/2026-10-15/spy-calls-oct-20-2026-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 call/put volume ratio for contracts within a week over the last 5 sessions. 4,673 call and 2,972 put contracts by 09:37 ET on Oct 15, 2026. Tracked: up to 40 strikes around the money across 34 expirations.
| Measure | Value |
|---|---|
| Call volume (contracts) | 4,673 |
| Put volume (contracts) | 2,972 |
| Call open interest, prior settlement | 23,627 |
| Put open interest, prior settlement | 69,434 |
| Call premium, est. (USD) | $728K |
| Put premium, est. (USD) | $774K |
| Call/put volume ratio | 1.6x |
| 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 | 4 | 26 | 0 |
| Puts | 29 | 2 | 2 |
The median is SPY's put/call volume ratio for contracts 1 to 3 weeks out over the last 5 sessions. 174,086 put and 32,111 call contracts by 12:17 ET on Oct 15, 2026. Tracked: up to 40 strikes around the money across 34 expirations.
The median is SPY's call/put volume ratio for contracts more than 3 months out over the last 5 sessions. 12,544 call and 7,725 put contracts by 09:57 ET on Oct 15, 2026. Tracked: up to 40 strikes around the money across 34 expirations.
Within 3 weeks: 621,207 put and 494,296 call contracts. 1 to 3 months out: 21,788 put and 8,009 call contracts. By 09:52 ET on Oct 15, 2026. Tracked: up to 40 strikes around the money across 34 expirations.
The median is SPY's put/call volume ratio for contracts 1 to 3 months out over the last 5 sessions. 7,610 put and 2,712 call contracts by 09:47 ET on Oct 15, 2026. Tracked: up to 40 strikes around the money across 34 expirations.
SPY calls expiring that date in the strikes we track traded 0.6x their open interest, by 09:37 ET on Oct 15, 2026. Tracked: up to 40 strikes around the money across 34 expirations.
The median is SPY's call/put volume ratio for contracts 1 to 3 weeks out over the last 5 sessions. 4,760 call and 716 put contracts by 09:32 ET on Oct 15, 2026. Tracked: up to 40 strikes around the money across 34 expirations.