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Contract OI history

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Jan 15, 2027 EXPIRATION

IONS $52.50 Put

IONS270115P00052500

Latest saved OI1,703Oct 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 $52.50 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. 1,7038510 2026-10-09: 1,655 OI2026-10-13: 1,703 OI2026-10-14: 1,703 OI2026-10-16: 1,703 OI2026-10-19: 1,703 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, 2026Viewing1,7030
Oct 16, 20261,7030
Oct 14, 20261,7030
Oct 13, 20261,703+48
Oct 09, 20261,655No prior observation