Masimo Corporation (MASI)
NASDAQ: MASI
· Real-Time Price · USD
147.29
1.24 (0.85%)
At close: Oct 03, 2025, 3:59 PM
144.47
-1.91%
After-hours: Oct 03, 2025, 05:32 PM EDT
MASI Option Overview
Overview for all option chains of MASI. As of October 05, 2025, MASI options have an IV of 79.89% and an IV rank of 101.75%. The volume is 78 contracts, which is 181.4% of average daily volume of 43 contracts. The volume put-call ratio is 0.01, indicating a bullish sentiment in the market.
Implied Volatility
Implied Volatility (30d)
79.89%IV Rank
100%Historical Volatility
29.41%IV Low
39.99% on Nov 26, 2024IV High
79.2% on Oct 03, 2025Open Interest (OI)
Today's Open Interest
949Put-Call Ratio
0.78Put Open Interest
417Call Open Interest
532Open Interest Avg (30-day)
698Today vs Open Interest Avg (30-day)
135.96%Option Volume
Today's Volume
78Put-Call Ratio
0.01Put Volume
1Call Volume
77Volume Avg (30-day)
43Today vs Volume Avg (30-day)
181.4%Option Chain Statistics
This table provides a comprehensive overview of all MASI options grouped by their expiration dates.
| Expiration | Call Vol | Put Vol | P/C Vol | Call OI | Put OI | P/C OI | Implied Volatility | Max Pain |
| Oct 17, 2025 | 65 | 0 | 0 | 312 | 191 | 0.61 | 79.89% | 145 |
| Nov 21, 2025 | 2 | 0 | 0 | 10 | 19 | 1.9 | 57.48% | 130 |
| Dec 19, 2025 | 9 | 0 | 0 | 85 | 137 | 1.61 | 49.92% | 135 |
| Mar 20, 2026 | 1 | 1 | 1 | 125 | 70 | 0.56 | 43.98% | 110 |