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Contract OI history

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Jan 21, 2028 EXPIRATION

PRAX $200.00 Put

PRAX280121P00200000

Latest saved OI526Oct 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 $200.00 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. 5262630 2026-10-09: 525 OI2026-10-13: 525 OI2026-10-15: 525 OI2026-10-16: 525 OI2026-10-20: 526 OI2026-10-23: 526 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, 2026Viewing5260
Oct 20, 2026526+1
Oct 16, 20265250
Oct 15, 20265250
Oct 13, 20265250
Oct 09, 2026525No prior observation