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Contract OI history

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Oct 23, 2026 EXPIRATION

GAP $21.00 Put

GAP261023P00021000

Latest saved OI195Oct 23, 2026
Last change-1vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
GAP $21.00 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. 196980 2026-10-02: 61 OI2026-10-05: 62 OI2026-10-06: 62 OI2026-10-07: 62 OI2026-10-08: 62 OI2026-10-09: 62 OI2026-10-13: 135 OI2026-10-14: 168 OI2026-10-15: 193 OI2026-10-16: 194 OI2026-10-21: 196 OI2026-10-23: 195 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, 2026Viewing195-1
Oct 21, 2026196+2
Oct 16, 2026194+1
Oct 15, 2026193+25
Oct 14, 2026168+33
Oct 13, 2026135+73
Oct 09, 2026620
Oct 08, 2026620
Oct 07, 2026620
Oct 06, 2026620
Oct 05, 202662+1
Oct 02, 202661No prior observation