OITracker Cboe delayed data

Contract OI history

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Nov 20, 2026 EXPIRATION

SERV $3.00 Put

SERV261120P00003000

Latest saved OI688Oct 23, 2026
Last change+35vs previous saved observation
Saved market days6Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
SERV $3.00 put open interest history 6 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 6883440 2026-10-09: 379 OI2026-10-13: 497 OI2026-10-14: 628 OI2026-10-16: 642 OI2026-10-20: 653 OI2026-10-23: 688 OI Oct 09, 2026Oct 23, 2026

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

SERV contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing688+35
Oct 20, 2026653+11
Oct 16, 2026642+14
Oct 14, 2026628+131
Oct 13, 2026497+118
Oct 09, 2026379No prior observation