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Contract OI history

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Dec 18, 2026 EXPIRATION

PRAX $310.00 Put

PRAX261218P00310000

Latest saved OI900Oct 23, 2026
Last change0vs previous saved observation
Saved market days6Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
PRAX $310.00 put open interest history 6 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 9004500 2026-10-09: 900 OI2026-10-13: 900 OI2026-10-15: 900 OI2026-10-16: 900 OI2026-10-20: 900 OI2026-10-23: 900 OI Oct 09, 2026Oct 23, 2026

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

PRAX contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing9000
Oct 20, 20269000
Oct 16, 20269000
Oct 15, 20269000
Oct 13, 20269000
Oct 09, 2026900No prior observation