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Contract OI history

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Dec 18, 2026 EXPIRATION

OSS $7.50 Put

OSS261218P00007500

Latest saved OI515Oct 23, 2026
Last change+2vs previous saved observation
Saved market days7Oct 08, 2026 onwards
Daily open interest Hover a point for its date and OI
OSS $7.50 put open interest history 7 saved observations from 2026-10-08 to 2026-10-23. Exact values and changes are listed in the table below. 5152570 2026-10-08: 123 OI2026-10-09: 123 OI2026-10-13: 165 OI2026-10-14: 409 OI2026-10-16: 509 OI2026-10-20: 513 OI2026-10-23: 515 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, 2026515+2
Oct 20, 2026Viewing513+4
Oct 16, 2026509+100
Oct 14, 2026409+244
Oct 13, 2026165+42
Oct 09, 20261230
Oct 08, 2026123No prior observation