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Contract OI history

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Jan 15, 2027 EXPIRATION

SION $7.50 Call

SION270115C00007500

Latest saved OI850Oct 23, 2026
Last change+15vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
SION $7.50 call open interest history 7 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 8504250 2026-10-09: 546 OI2026-10-13: 546 OI2026-10-14: 551 OI2026-10-15: 551 OI2026-10-16: 610 OI2026-10-20: 835 OI2026-10-23: 850 OI Oct 09, 2026Oct 23, 2026

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

SION contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026850+15
Oct 20, 2026Viewing835+225
Oct 16, 2026610+59
Oct 15, 20265510
Oct 14, 2026551+5
Oct 13, 20265460
Oct 09, 2026546No prior observation