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Contract OI history

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Oct 23, 2026 EXPIRATION

GAP $18.50 Put

GAP261023P00018500

Latest saved OI200Oct 23, 2026
Last change0vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
GAP $18.50 put open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 2061030 2026-10-02: 40 OI2026-10-05: 41 OI2026-10-06: 46 OI2026-10-07: 56 OI2026-10-08: 56 OI2026-10-09: 66 OI2026-10-13: 177 OI2026-10-14: 192 OI2026-10-15: 192 OI2026-10-16: 206 OI2026-10-21: 200 OI2026-10-23: 200 OI Oct 02, 2026Oct 23, 2026

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

GAP contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing2000
Oct 21, 2026200-6
Oct 16, 2026206+14
Oct 15, 20261920
Oct 14, 2026192+15
Oct 13, 2026177+111
Oct 09, 202666+10
Oct 08, 2026560
Oct 07, 202656+10
Oct 06, 202646+5
Oct 05, 202641+1
Oct 02, 202640No prior observation