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Contract OI history

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Nov 20, 2026 EXPIRATION

SYM $40.00 Put

SYM261120P00040000

Latest saved OI611Oct 23, 2026
Last change+5vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
SYM $40.00 put open interest history 7 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 6113050 2026-10-09: 433 OI2026-10-13: 520 OI2026-10-14: 520 OI2026-10-15: 534 OI2026-10-16: 538 OI2026-10-20: 606 OI2026-10-23: 611 OI Oct 09, 2026Oct 23, 2026

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

SYM contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing611+5
Oct 20, 2026606+68
Oct 16, 2026538+4
Oct 15, 2026534+14
Oct 14, 20265200
Oct 13, 2026520+87
Oct 09, 2026433No prior observation