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Contract OI history

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Nov 20, 2026 EXPIRATION

RSI $17.50 Put

RSI261120P00017500

Latest saved OI359Oct 23, 2026
Last change+257vs 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. 3591790 2026-10-02: 48 OI2026-10-05: 48 OI2026-10-06: 57 OI2026-10-07: 68 OI2026-10-08: 71 OI2026-10-09: 76 OI2026-10-13: 100 OI2026-10-14: 100 OI2026-10-16: 100 OI2026-10-20: 102 OI2026-10-23: 359 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, 2026359+257
Oct 20, 2026Viewing102+2
Oct 16, 20261000
Oct 14, 20261000
Oct 13, 2026100+24
Oct 09, 202676+5
Oct 08, 202671+3
Oct 07, 202668+11
Oct 06, 202657+9
Oct 05, 2026480
Oct 02, 202648No prior observation