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Contract OI history

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Dec 18, 2026 EXPIRATION

OSS $12.50 Call

OSS261218C00012500

Latest saved OI239Oct 23, 2026
Last change-11vs previous saved observation
Saved market days7Oct 08, 2026 onwards
Daily open interest Hover a point for its date and OI
OSS $12.50 call open interest history 7 saved observations from 2026-10-08 to 2026-10-23. Exact values and changes are listed in the table below. 2571280 2026-10-08: 257 OI2026-10-09: 257 OI2026-10-13: 257 OI2026-10-14: 252 OI2026-10-16: 252 OI2026-10-20: 250 OI2026-10-23: 239 OI Oct 08, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

OSS contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026239-11
Oct 20, 2026Viewing250-2
Oct 16, 20262520
Oct 14, 2026252-5
Oct 13, 20262570
Oct 09, 20262570
Oct 08, 2026257No prior observation