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Contract OI history

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Jan 15, 2027 EXPIRATION

GERN $1000.00 Put

GERN270115P00001000

Latest saved OI12,459Oct 23, 2026
Last change+5vs previous saved observation
Saved market days7Oct 08, 2026 onwards
Daily open interest Hover a point for its date and OI
GERN $1000.00 put open interest history 7 saved observations from 2026-10-08 to 2026-10-23. Exact values and changes are listed in the table below. 12,4626,2310 2026-10-08: 12,452 OI2026-10-09: 12,452 OI2026-10-13: 12,462 OI2026-10-14: 12,462 OI2026-10-16: 12,462 OI2026-10-20: 12,454 OI2026-10-23: 12,459 OI Oct 08, 2026Oct 23, 2026

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

GERN contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing12,459+5
Oct 20, 202612,454-8
Oct 16, 202612,4620
Oct 14, 202612,4620
Oct 13, 202612,462+10
Oct 09, 202612,4520
Oct 08, 202612,452No prior observation