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Contract OI history

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Dec 18, 2026 EXPIRATION

FSLY $25.00 Put

FSLY261218P00025000

Latest saved OI437Oct 23, 2026
Last change+4vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
FSLY $25.00 put open interest history 7 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 4372180 2026-10-09: 373 OI2026-10-13: 405 OI2026-10-14: 405 OI2026-10-15: 404 OI2026-10-16: 404 OI2026-10-21: 433 OI2026-10-23: 437 OI Oct 09, 2026Oct 23, 2026

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

FSLY contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing437+4
Oct 21, 2026433+29
Oct 16, 20264040
Oct 15, 2026404-1
Oct 14, 20264050
Oct 13, 2026405+32
Oct 09, 2026373No prior observation