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Contract OI history

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Jan 21, 2028 EXPIRATION

P $35.00 Put

P280121P00035000

Latest saved OI227Oct 23, 2026
Last change0vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
P $35.00 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. 2271130 2026-10-02: 136 OI2026-10-05: 136 OI2026-10-06: 156 OI2026-10-07: 202 OI2026-10-08: 202 OI2026-10-09: 202 OI2026-10-13: 207 OI2026-10-14: 207 OI2026-10-15: 207 OI2026-10-16: 207 OI2026-10-21: 227 OI2026-10-23: 227 OI Oct 02, 2026Oct 23, 2026

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

P contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing2270
Oct 21, 2026227+20
Oct 16, 20262070
Oct 15, 20262070
Oct 14, 20262070
Oct 13, 2026207+5
Oct 09, 20262020
Oct 08, 20262020
Oct 07, 2026202+46
Oct 06, 2026156+20
Oct 05, 20261360
Oct 02, 2026136No prior observation