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Contract OI history

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Jan 21, 2028 EXPIRATION

PUMP $12.50 Put

PUMP280121P00012500

Latest saved OI151Oct 23, 2026
Last change0vs previous saved observation
Saved market days10Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
PUMP $12.50 put open interest history 10 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 151750 2026-10-02: 150 OI2026-10-05: 150 OI2026-10-07: 151 OI2026-10-08: 151 OI2026-10-09: 151 OI2026-10-13: 151 OI2026-10-14: 151 OI2026-10-16: 151 OI2026-10-20: 151 OI2026-10-23: 151 OI Oct 02, 2026Oct 23, 2026

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

PUMP contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 20261510
Oct 20, 2026Viewing1510
Oct 16, 20261510
Oct 14, 20261510
Oct 13, 20261510
Oct 09, 20261510
Oct 08, 20261510
Oct 07, 2026151+1
Oct 05, 20261500
Oct 02, 2026150No prior observation