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Contract OI history

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Oct 23, 2026 EXPIRATION

FSLY $27.50 Call

FSLY261023C00027500

Latest saved OI331Oct 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 $27.50 call open interest history 7 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 7173580 2026-10-09: 150 OI2026-10-13: 218 OI2026-10-14: 218 OI2026-10-15: 717 OI2026-10-16: 228 OI2026-10-21: 327 OI2026-10-23: 331 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, 2026Viewing331+4
Oct 21, 2026327+99
Oct 16, 2026228-489
Oct 15, 2026717+499
Oct 14, 20262180
Oct 13, 2026218+68
Oct 09, 2026150No prior observation