OITracker Cboe delayed data

Contract OI history

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Jan 15, 2027 EXPIRATION

SSYS $7.50 Put

SSYS270115P00007500

Latest saved OI669Oct 23, 2026
Last change0vs previous saved observation
Saved market days7Oct 07, 2026 onwards
Daily open interest Hover a point for its date and OI
SSYS $7.50 put open interest history 7 saved observations from 2026-10-07 to 2026-10-23. Exact values and changes are listed in the table below. 6723360 2026-10-07: 557 OI2026-10-09: 557 OI2026-10-13: 657 OI2026-10-14: 657 OI2026-10-16: 672 OI2026-10-20: 669 OI2026-10-23: 669 OI Oct 07, 2026Oct 23, 2026

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

SSYS contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing6690
Oct 20, 2026669-3
Oct 16, 2026672+15
Oct 14, 20266570
Oct 13, 2026657+100
Oct 09, 20265570
Oct 07, 2026557No prior observation