OITracker Cboe delayed data

Contract OI history

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Dec 18, 2026 EXPIRATION

TSLA $400.00 Put

TSLA261218P00400000

Latest saved OI6,204Oct 23, 2026
Last change-92vs 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. 6,7203,3600 2026-10-07: 6,688 OI2026-10-09: 6,720 OI2026-10-14: 6,651 OI2026-10-15: 6,521 OI2026-10-16: 6,507 OI2026-10-21: 6,296 OI2026-10-23: 6,204 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, 2026Viewing6,204-92
Oct 21, 20266,296-211
Oct 16, 20266,507-14
Oct 15, 20266,521-130
Oct 14, 20266,651-69
Oct 09, 20266,720+32
Oct 07, 20266,688No prior observation