Price Alert

MKS Inc. (MKSI)

NASDAQ: MKSI · Real-Time Price · USD

121.61

-0.64 (-0.52%)

At close: Sep 26, 2025, 1:12 PM

MKSI Option Overview

Overview for all option chains of MKSI. As of September 26, 2025, MKSI options have an IV of 91.88% and an IV rank of 79.1%. The volume is 2,478 contracts, which is 878.72% of average daily volume of 282 contracts. The volume put-call ratio is 2.26, indicating a bearish sentiment in the market.

Implied Volatility

Implied Volatility (30d)

91.88%

IV Rank

79.1%

Historical Volatility

43.64%

IV Low

44.81% on Feb 20, 2025

IV High

104.32% on Sep 23, 2025

Open Interest (OI)

Today's Open Interest

4,327

Put-Call Ratio

0.58

Put Open Interest

1,584

Call Open Interest

2,743

Open Interest Avg (30-day)

2,420

Today vs Open Interest Avg (30-day)

178.8%

Option Volume

Today's Volume

2,478

Put-Call Ratio

2.26

Put Volume

1,717

Call Volume

761

Volume Avg (30-day)

282

Today vs Volume Avg (30-day)

878.72%

Option Chain Statistics

This table provides a comprehensive overview of all MKSI 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	754	1,714	2.27	707	1,038	1.47	91.88%	125
Nov 21, 2025	4	0	0	13	81	6.23	53.64%	130
Dec 19, 2025	2	0	0	1,389	180	0.13	54.7%	70
Jan 16, 2026	1	3	3	588	227	0.39	50.98%	95
Apr 17, 2026	0	0	0	46	58	1.26	47.44%	130
Dec 18, 2026	0	0	0	0	0	0	n/a	70