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Contract OI history

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Oct 30, 2026 EXPIRATION

ROST $210.00 Put

ROST261030P00210000

Latest saved OI140Oct 23, 2026
Last change-3vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
ROST $210.00 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. 148740 2026-10-09: 142 OI2026-10-13: 142 OI2026-10-14: 142 OI2026-10-15: 148 OI2026-10-16: 143 OI2026-10-21: 143 OI2026-10-23: 140 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, 2026Viewing140-3
Oct 21, 20261430
Oct 16, 2026143-5
Oct 15, 2026148+6
Oct 14, 20261420
Oct 13, 20261420
Oct 09, 2026142No prior observation