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Contract OI history

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Nov 20, 2026 EXPIRATION

STM $50.00 Put

STM261120P00050000

Latest saved OI2,625Oct 23, 2026
Last change0vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
STM $50.00 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. 2,6391,3190 2026-10-02: 2,381 OI2026-10-05: 2,432 OI2026-10-06: 2,475 OI2026-10-07: 2,502 OI2026-10-08: 2,502 OI2026-10-09: 2,548 OI2026-10-13: 2,639 OI2026-10-14: 2,639 OI2026-10-15: 2,639 OI2026-10-16: 2,637 OI2026-10-21: 2,625 OI2026-10-23: 2,625 OI Oct 02, 2026Oct 23, 2026

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

STM contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing2,6250
Oct 21, 20262,625-12
Oct 16, 20262,637-2
Oct 15, 20262,6390
Oct 14, 20262,6390
Oct 13, 20262,639+91
Oct 09, 20262,548+46
Oct 08, 20262,5020
Oct 07, 20262,502+27
Oct 06, 20262,475+43
Oct 05, 20262,432+51
Oct 02, 20262,381No prior observation