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Contract OI history

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Dec 18, 2026 EXPIRATION

QDEL $17.50 Call

QDEL261218C00017500

Latest saved OI241Oct 23, 2026
Last change+2vs previous saved observation
Saved market days7Oct 08, 2026 onwards
Daily open interest Hover a point for its date and OI
QDEL $17.50 call open interest history 7 saved observations from 2026-10-08 to 2026-10-23. Exact values and changes are listed in the table below. 2411200 2026-10-08: 214 OI2026-10-09: 214 OI2026-10-13: 214 OI2026-10-14: 238 OI2026-10-16: 239 OI2026-10-20: 239 OI2026-10-23: 241 OI Oct 08, 2026Oct 23, 2026

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

QDEL contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026241+2
Oct 20, 2026Viewing2390
Oct 16, 2026239+1
Oct 14, 2026238+24
Oct 13, 20262140
Oct 09, 20262140
Oct 08, 2026214No prior observation