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Contract OI history

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Jan 21, 2028 EXPIRATION

IONS $70.00 Put

IONS280121P00070000

Latest saved OI634Oct 19, 2026
Last change0vs previous saved observation
Saved market days5Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
IONS $70.00 put open interest history 5 saved observations from 2026-10-09 to 2026-10-19. Exact values and changes are listed in the table below. 6343170 2026-10-09: 634 OI2026-10-13: 634 OI2026-10-14: 634 OI2026-10-16: 634 OI2026-10-19: 634 OI Oct 09, 2026Oct 19, 2026

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

IONS contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 19, 2026Viewing6340
Oct 16, 20266340
Oct 14, 20266340
Oct 13, 20266340
Oct 09, 2026634No prior observation