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Contract OI history

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Mar 19, 2027 EXPIRATION

NSC $250.00 Put

NSC270319P00250000

Latest saved OI471Oct 23, 2026
Last change0vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
NSC $250.00 put open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 4722360 2026-10-02: 468 OI2026-10-05: 472 OI2026-10-06: 472 OI2026-10-07: 472 OI2026-10-08: 472 OI2026-10-09: 472 OI2026-10-13: 472 OI2026-10-14: 471 OI2026-10-15: 471 OI2026-10-16: 471 OI2026-10-21: 471 OI2026-10-23: 471 OI Oct 02, 2026Oct 23, 2026

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

NSC contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing4710
Oct 21, 20264710
Oct 16, 20264710
Oct 15, 20264710
Oct 14, 2026471-1
Oct 13, 20264720
Oct 09, 20264720
Oct 08, 20264720
Oct 07, 20264720
Oct 06, 20264720
Oct 05, 2026472+4
Oct 02, 2026468No prior observation