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Contract OI history

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May 21, 2027 EXPIRATION

ETON $55.00 Call

ETON270521C00055000

Latest saved OI54Oct 23, 2026
Last change-4vs previous saved observation
Saved market days6Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
ETON $55.00 call open interest history 6 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 58290 2026-10-09: 27 OI2026-10-13: 31 OI2026-10-14: 31 OI2026-10-16: 32 OI2026-10-20: 58 OI2026-10-23: 54 OI Oct 09, 2026Oct 23, 2026

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

ETON contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing54-4
Oct 20, 202658+26
Oct 16, 202632+1
Oct 14, 2026310
Oct 13, 202631+4
Oct 09, 202627No prior observation