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Contract OI history

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Mar 19, 2027 EXPIRATION

TSLA $400.00 Put

TSLA270319P00400000

Latest saved OI3,897Oct 23, 2026
Last change+459vs 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. 3,8971,9480 2026-10-07: 3,340 OI2026-10-09: 3,340 OI2026-10-14: 3,366 OI2026-10-15: 3,367 OI2026-10-16: 3,367 OI2026-10-21: 3,438 OI2026-10-23: 3,897 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, 2026Viewing3,897+459
Oct 21, 20263,438+71
Oct 16, 20263,3670
Oct 15, 20263,367+1
Oct 14, 20263,366+26
Oct 09, 20263,3400
Oct 07, 20263,340No prior observation