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Jun 17, 2027 EXPIRATION

O $55.00 Put

O270617P00055000

Latest saved OI197Oct 23, 2026
Last change0vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
O $55.00 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. 197980 2026-10-02: 143 OI2026-10-05: 144 OI2026-10-06: 144 OI2026-10-07: 144 OI2026-10-08: 144 OI2026-10-09: 147 OI2026-10-13: 148 OI2026-10-14: 148 OI2026-10-15: 153 OI2026-10-16: 151 OI2026-10-21: 197 OI2026-10-23: 197 OI Oct 02, 2026Oct 23, 2026

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

O contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing1970
Oct 21, 2026197+46
Oct 16, 2026151-2
Oct 15, 2026153+5
Oct 14, 20261480
Oct 13, 2026148+1
Oct 09, 2026147+3
Oct 08, 20261440
Oct 07, 20261440
Oct 06, 20261440
Oct 05, 2026144+1
Oct 02, 2026143No prior observation