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Contract OI history

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Jan 15, 2027 EXPIRATION

ROST $200.00 Put

ROST270115P00200000

Latest saved OI351Oct 23, 2026
Last change0vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
ROST $200.00 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. 3511750 2026-10-09: 257 OI2026-10-13: 270 OI2026-10-14: 270 OI2026-10-15: 270 OI2026-10-16: 270 OI2026-10-21: 351 OI2026-10-23: 351 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, 20263510
Oct 21, 2026Viewing351+81
Oct 16, 20262700
Oct 15, 20262700
Oct 14, 20262700
Oct 13, 2026270+13
Oct 09, 2026257No prior observation