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Contract OI history

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Mar 19, 2027 EXPIRATION

MTRN $340.00 Call

MTRN270319C00340000

Latest saved OI23Oct 23, 2026
Last change0vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
MTRN $340.00 call open interest history 11 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 23110 2026-10-02: 1 OI2026-10-05: 1 OI2026-10-06: 21 OI2026-10-07: 21 OI2026-10-08: 21 OI2026-10-09: 21 OI2026-10-13: 22 OI2026-10-15: 22 OI2026-10-16: 22 OI2026-10-20: 23 OI2026-10-23: 23 OI Oct 02, 2026Oct 23, 2026

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

MTRN contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing230
Oct 20, 202623+1
Oct 16, 2026220
Oct 15, 2026220
Oct 13, 202622+1
Oct 09, 2026210
Oct 08, 2026210
Oct 07, 2026210
Oct 06, 202621+20
Oct 05, 202610
Oct 02, 20261No prior observation