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Contract OI history

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Dec 18, 2026 EXPIRATION

ROST $210.00 Put

ROST261218P00210000

Latest saved OI301Oct 23, 2026
Last change+21vs 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. 3011500 2026-10-09: 269 OI2026-10-13: 270 OI2026-10-14: 270 OI2026-10-15: 271 OI2026-10-16: 279 OI2026-10-21: 280 OI2026-10-23: 301 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, 2026301+21
Oct 21, 2026Viewing280+1
Oct 16, 2026279+8
Oct 15, 2026271+1
Oct 14, 20262700
Oct 13, 2026270+1
Oct 09, 2026269No prior observation