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Contract OI history

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Dec 18, 2026 EXPIRATION

ONTO $300.00 Call

ONTO261218C00300000

Latest saved OI115Oct 23, 2026
Last change0vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
ONTO $300.00 call open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 115570 2026-10-02: 112 OI2026-10-05: 110 OI2026-10-06: 110 OI2026-10-07: 110 OI2026-10-08: 110 OI2026-10-09: 110 OI2026-10-13: 110 OI2026-10-14: 109 OI2026-10-15: 112 OI2026-10-16: 112 OI2026-10-21: 115 OI2026-10-23: 115 OI Oct 02, 2026Oct 23, 2026

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

ONTO contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing1150
Oct 21, 2026115+3
Oct 16, 20261120
Oct 15, 2026112+3
Oct 14, 2026109-1
Oct 13, 20261100
Oct 09, 20261100
Oct 08, 20261100
Oct 07, 20261100
Oct 06, 20261100
Oct 05, 2026110-2
Oct 02, 2026112No prior observation