OITracker Cboe delayed data

Contract OI history

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Oct 23, 2026 EXPIRATION

TSLA $400.00 Put

TSLA261023P00400000

Latest saved OI336Oct 23, 2026
Last change-859vs previous saved observation
Saved market days7Oct 07, 2026 onwards
Daily open interest Hover a point for its date and OI
TSLA $400.00 put open interest history 7 saved observations from 2026-10-07 to 2026-10-23. Exact values and changes are listed in the table below. 1,2936460 2026-10-07: 1,238 OI2026-10-09: 1,293 OI2026-10-14: 904 OI2026-10-15: 911 OI2026-10-16: 1,017 OI2026-10-21: 1,195 OI2026-10-23: 336 OI Oct 07, 2026Oct 23, 2026

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

TSLA contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing336-859
Oct 21, 20261,195+178
Oct 16, 20261,017+106
Oct 15, 2026911+7
Oct 14, 2026904-389
Oct 09, 20261,293+55
Oct 07, 20261,238No prior observation