Masimo Corporation (MASI) Open Interest History

Open interest tracks the total number of outstanding options contracts. Rising OI alongside price moves can indicate growing commitment to the trend; declining OI suggests positions are being closed.

Masimo Corporation (MASI) operates in the Healthcare sector, specifically the Medical - Devices industry, with a market capitalization near $9.42B, listed on NASDAQ, employing roughly 7,500 people, carrying a beta of 1.18 to the broader market. Masimo Corporation engages in the development, manufacture, and marketing of various patient monitoring technologies, and automation and connectivity solutions worldwide. Led by Catherine Szyman, public since 2007-08-08.

Open interest history tracks how outstanding options contracts change over time. No recent options activity for MASI as of 2026-07-17; this typically reflects low options liquidity, a recently listed name, or a temporary data feed delay. Snapshot will refresh on the next active session.

Learn how open interest is reported and how to read the data →