OITracker Cboe delayed data

Contract OI history

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Dec 18, 2026 EXPIRATION

RTX $155.00 Put

RTX261218P00155000

Latest saved OI381Oct 23, 2026
Last change-15vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
RTX $155.00 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. 3961980 2026-10-02: 338 OI2026-10-05: 342 OI2026-10-06: 346 OI2026-10-07: 346 OI2026-10-08: 346 OI2026-10-09: 377 OI2026-10-13: 379 OI2026-10-14: 379 OI2026-10-15: 382 OI2026-10-16: 382 OI2026-10-21: 396 OI2026-10-23: 381 OI Oct 02, 2026Oct 23, 2026

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

RTX contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing381-15
Oct 21, 2026396+14
Oct 16, 20263820
Oct 15, 2026382+3
Oct 14, 20263790
Oct 13, 2026379+2
Oct 09, 2026377+31
Oct 08, 20263460
Oct 07, 20263460
Oct 06, 2026346+4
Oct 05, 2026342+4
Oct 02, 2026338No prior observation