Masimo Corporation (MASI)
NASDAQ: MASI
· Real-Time Price · USD
141.40
1.65 (1.18%)
At close: Sep 26, 2025, 3:59 PM
141.40
0.00%
After-hours: Sep 26, 2025, 04:28 PM EDT
MASI Option Overview
Overview for all option chains of MASI. As of September 28, 2025, MASI options have an IV of 73.72% and an IV rank of 137.27%. The volume is 28 contracts, which is 93.33% of average daily volume of 30 contracts. The volume put-call ratio is 0.27, indicating a bullish sentiment in the market.
Implied Volatility
Implied Volatility (30d)
73.72%IV Rank
100%Historical Volatility
28.6%IV Low
39.99% on Nov 26, 2024IV High
64.56% on Sep 25, 2025Open Interest (OI)
Today's Open Interest
865Put-Call Ratio
0.85Put Open Interest
397Call Open Interest
468Open Interest Avg (30-day)
588Today vs Open Interest Avg (30-day)
147.11%Option Volume
Today's Volume
28Put-Call Ratio
0.27Put Volume
6Call Volume
22Volume Avg (30-day)
30Today vs Volume Avg (30-day)
93.33%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 | 19 | 1 | 0.05 | 261 | 187 | 0.72 | 73.72% | 145 |
| Nov 21, 2025 | 0 | 2 | 0 | 4 | 9 | 2.25 | 45.91% | 125 |
| Dec 19, 2025 | 0 | 0 | 0 | 86 | 135 | 1.57 | 45.06% | 135 |
| Mar 20, 2026 | 3 | 3 | 1 | 117 | 66 | 0.56 | 42.69% | 110 |