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Contract OI history

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Feb 19, 2027 EXPIRATION

PRAX $220.00 Put

PRAX270219P00220000

Latest saved OI1,404Oct 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 $220.00 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. 1,4047020 2026-10-09: 1,404 OI2026-10-13: 1,404 OI2026-10-15: 1,404 OI2026-10-16: 1,404 OI2026-10-20: 1,404 OI2026-10-23: 1,404 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, 2026Viewing1,4040
Oct 20, 20261,4040
Oct 16, 20261,4040
Oct 15, 20261,4040
Oct 13, 20261,4040
Oct 09, 20261,404No prior observation