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Contract OI history

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Nov 20, 2026 EXPIRATION

INV $500.00 Put

INV261120P00000500

Latest saved OI328Oct 20, 2026
Last change+2vs previous saved observation
Saved market days6Oct 08, 2026 onwards
Daily open interest Hover a point for its date and OI
INV $500.00 put open interest history 6 saved observations from 2026-10-08 to 2026-10-20. Exact values and changes are listed in the table below. 3281640 2026-10-08: 325 OI2026-10-09: 325 OI2026-10-13: 326 OI2026-10-14: 326 OI2026-10-16: 326 OI2026-10-20: 328 OI Oct 08, 2026Oct 20, 2026

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

INV contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 20, 2026Viewing328+2
Oct 16, 20263260
Oct 14, 20263260
Oct 13, 2026326+1
Oct 09, 20263250
Oct 08, 2026325No prior observation