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Contract OI history

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Dec 18, 2026 EXPIRATION

TSSI $7.50 Put

TSSI261218P00007500

Latest saved OI1,561Oct 23, 2026
Last change0vs previous saved observation
Saved market days6Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
TSSI $7.50 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. 1,5617800 2026-10-09: 1,536 OI2026-10-14: 1,535 OI2026-10-15: 1,547 OI2026-10-16: 1,559 OI2026-10-21: 1,561 OI2026-10-23: 1,561 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, 20261,5610
Oct 21, 2026Viewing1,561+2
Oct 16, 20261,559+12
Oct 15, 20261,547+12
Oct 14, 20261,535-1
Oct 09, 20261,536No prior observation