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Contract OI history

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Dec 18, 2026 EXPIRATION

GEN $27.00 Call

GEN261218C00027000

Latest saved OI257Oct 23, 2026
Last change0vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
GEN $27.00 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. 2571280 2026-10-09: 215 OI2026-10-13: 215 OI2026-10-14: 215 OI2026-10-15: 216 OI2026-10-16: 216 OI2026-10-21: 257 OI2026-10-23: 257 OI Oct 09, 2026Oct 23, 2026

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

GEN contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing2570
Oct 21, 2026257+41
Oct 16, 20262160
Oct 15, 2026216+1
Oct 14, 20262150
Oct 13, 20262150
Oct 09, 2026215No prior observation