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Contract OI history

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Jun 17, 2027 EXPIRATION

ISRG $370.00 Put

ISRG270617P00370000

Latest saved OI198Oct 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
ISRG $370.00 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. 198990 2026-10-09: 171 OI2026-10-13: 174 OI2026-10-14: 174 OI2026-10-15: 196 OI2026-10-16: 193 OI2026-10-21: 194 OI2026-10-23: 198 OI Oct 09, 2026Oct 23, 2026

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

ISRG contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing198+4
Oct 21, 2026194+1
Oct 16, 2026193-3
Oct 15, 2026196+22
Oct 14, 20261740
Oct 13, 2026174+3
Oct 09, 2026171No prior observation