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Contract OI history

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Nov 20, 2026 EXPIRATION

FSLY $17.50 Put

FSLY261120P00017500

Latest saved OI735Oct 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 $17.50 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. 7383690 2026-10-09: 105 OI2026-10-13: 181 OI2026-10-14: 181 OI2026-10-15: 221 OI2026-10-16: 248 OI2026-10-21: 738 OI2026-10-23: 735 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, 2026Viewing735-3
Oct 21, 2026738+490
Oct 16, 2026248+27
Oct 15, 2026221+40
Oct 14, 20261810
Oct 13, 2026181+76
Oct 09, 2026105No prior observation