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Contract OI history

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May 21, 2027 EXPIRATION

SSTK $2.50 Call

SSTK270521C00002500

Latest saved OI133Oct 23, 2026
Last change0vs previous saved observation
Saved market days10Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
SSTK $2.50 call open interest history 10 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 2161080 2026-10-02: 33 OI2026-10-06: 216 OI2026-10-07: 216 OI2026-10-08: 216 OI2026-10-09: 216 OI2026-10-12: 216 OI2026-10-15: 215 OI2026-10-16: 141 OI2026-10-20: 133 OI2026-10-23: 133 OI Oct 02, 2026Oct 23, 2026

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

SSTK contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing1330
Oct 20, 2026133-8
Oct 16, 2026141-74
Oct 15, 2026215-1
Oct 12, 20262160
Oct 09, 20262160
Oct 08, 20262160
Oct 07, 20262160
Oct 06, 2026216+183
Oct 02, 202633No prior observation