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Contract OI history

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Jan 21, 2028 EXPIRATION

T $13.00 Put

T280121P00013000

Latest saved OI439Oct 23, 2026
Last change+65vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
T $13.00 put open interest history 11 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 4392190 2026-10-02: 296 OI2026-10-05: 296 OI2026-10-06: 300 OI2026-10-07: 300 OI2026-10-08: 300 OI2026-10-09: 348 OI2026-10-14: 347 OI2026-10-15: 372 OI2026-10-16: 372 OI2026-10-21: 374 OI2026-10-23: 439 OI Oct 02, 2026Oct 23, 2026

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

T contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing439+65
Oct 21, 2026374+2
Oct 16, 20263720
Oct 15, 2026372+25
Oct 14, 2026347-1
Oct 09, 2026348+48
Oct 08, 20263000
Oct 07, 20263000
Oct 06, 2026300+4
Oct 05, 20262960
Oct 02, 2026296No prior observation