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Contract OI history

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Jan 15, 2027 EXPIRATION

RSI $17.50 Put

RSI270115P00017500

Latest saved OI232Oct 23, 2026
Last change0vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
RSI $17.50 put open interest history 11 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 2321160 2026-10-02: 231 OI2026-10-05: 231 OI2026-10-06: 231 OI2026-10-07: 231 OI2026-10-08: 231 OI2026-10-09: 232 OI2026-10-13: 232 OI2026-10-14: 232 OI2026-10-16: 232 OI2026-10-20: 232 OI2026-10-23: 232 OI Oct 02, 2026Oct 23, 2026

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

RSI contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 20262320
Oct 20, 2026Viewing2320
Oct 16, 20262320
Oct 14, 20262320
Oct 13, 20262320
Oct 09, 2026232+1
Oct 08, 20262310
Oct 07, 20262310
Oct 06, 20262310
Oct 05, 20262310
Oct 02, 2026231No prior observation