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Contract OI history

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Nov 20, 2026 EXPIRATION

ROST $240.00 Put

ROST261120P00240000

Latest saved OI1,388Oct 23, 2026
Last change+2vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
ROST $240.00 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. 2,3611,1800 2026-10-09: 2,361 OI2026-10-13: 2,356 OI2026-10-14: 2,356 OI2026-10-15: 2,356 OI2026-10-16: 2,354 OI2026-10-21: 1,386 OI2026-10-23: 1,388 OI Oct 09, 2026Oct 23, 2026

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

ROST contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 20261,388+2
Oct 21, 2026Viewing1,386-968
Oct 16, 20262,354-2
Oct 15, 20262,3560
Oct 14, 20262,3560
Oct 13, 20262,356-5
Oct 09, 20262,361No prior observation