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Contract OI history

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Jan 15, 2027 EXPIRATION

ISRG $415.00 Put

ISRG270115P00415000

Latest saved OI274Oct 23, 2026
Last change0vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
ISRG $415.00 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. 2801400 2026-10-09: 277 OI2026-10-13: 280 OI2026-10-14: 280 OI2026-10-15: 280 OI2026-10-16: 273 OI2026-10-21: 274 OI2026-10-23: 274 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, 2026Viewing2740
Oct 21, 2026274+1
Oct 16, 2026273-7
Oct 15, 20262800
Oct 14, 20262800
Oct 13, 2026280+3
Oct 09, 2026277No prior observation