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Contract OI history

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Dec 18, 2026 EXPIRATION

FSLY $20.00 Put

FSLY261218P00020000

Latest saved OI257Oct 23, 2026
Last change+1vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
FSLY $20.00 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. 2571280 2026-10-09: 211 OI2026-10-13: 211 OI2026-10-14: 211 OI2026-10-15: 208 OI2026-10-16: 209 OI2026-10-21: 256 OI2026-10-23: 257 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, 2026Viewing257+1
Oct 21, 2026256+47
Oct 16, 2026209+1
Oct 15, 2026208-3
Oct 14, 20262110
Oct 13, 20262110
Oct 09, 2026211No prior observation