OITracker Cboe delayed data

Contract OI history

Back to TSSI

Dec 18, 2026 EXPIRATION

TSSI $5.00 Put

TSSI261218P00005000

Latest saved OI103Oct 23, 2026
Last change+4vs previous saved observation
Saved market days6Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
TSSI $5.00 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. 103510 2026-10-09: 97 OI2026-10-14: 97 OI2026-10-15: 97 OI2026-10-16: 99 OI2026-10-21: 99 OI2026-10-23: 103 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, 2026103+4
Oct 21, 2026Viewing990
Oct 16, 202699+2
Oct 15, 2026970
Oct 14, 2026970
Oct 09, 202697No prior observation