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Contract OI history

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Oct 30, 2026 EXPIRATION

FSLY $19.50 Put

FSLY261030P00019500

Latest saved OI200Oct 23, 2026
Last change+3vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
FSLY $19.50 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. 2001000 2026-10-09: 66 OI2026-10-13: 66 OI2026-10-14: 66 OI2026-10-15: 69 OI2026-10-16: 69 OI2026-10-21: 197 OI2026-10-23: 200 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, 2026Viewing200+3
Oct 21, 2026197+128
Oct 16, 2026690
Oct 15, 202669+3
Oct 14, 2026660
Oct 13, 2026660
Oct 09, 202666No prior observation