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Contract OI history

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Oct 23, 2026 EXPIRATION

FTNT $172.50 Put

FTNT261023P00172500

Latest saved OI370Oct 23, 2026
Last change+10vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
FTNT $172.50 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. 3701850 2026-10-09: 1 OI2026-10-13: 253 OI2026-10-14: 253 OI2026-10-15: 254 OI2026-10-16: 255 OI2026-10-21: 360 OI2026-10-23: 370 OI Oct 09, 2026Oct 23, 2026

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

FTNT contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing370+10
Oct 21, 2026360+105
Oct 16, 2026255+1
Oct 15, 2026254+1
Oct 14, 20262530
Oct 13, 2026253+252
Oct 09, 20261No prior observation