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Contract OI history

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Dec 18, 2026 EXPIRATION

TSSI $17.50 Call

TSSI261218C00017500

Latest saved OI95Oct 23, 2026
Last change-5vs previous saved observation
Saved market days6Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
TSSI $17.50 call open interest history 6 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 103510 2026-10-09: 103 OI2026-10-14: 100 OI2026-10-15: 100 OI2026-10-16: 100 OI2026-10-21: 100 OI2026-10-23: 95 OI Oct 09, 2026Oct 23, 2026

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

TSSI contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing95-5
Oct 21, 20261000
Oct 16, 20261000
Oct 15, 20261000
Oct 14, 2026100-3
Oct 09, 2026103No prior observation