MKS (MKSI) closed at $202.28 on October 26, 2026, up 2.9% from the previous close, on volume of 1,009,892 shares (30-day average 1,283,323).
Data as of October 26, 2026.
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MKS Inc delivers foundational technology solutions for leading edge semiconductor manufacturing, electronics and packaging, and specialty industrial applications. The company provides instruments, components, subsystems, systems, process control solutions, and specialty chemicals technology that improve process performance and optimize productivity. Its solutions address challenges of miniaturization and complexity in device manufacturing, enabling increased power, speed, and feature enhancement. MKS Inc operates through three divisions: Vacuum Solutions Division (VSD), Photonics Solutions Division (PSD), and Materials Solutions Division (MSD). The company operates in the United States, which generates maximum revenue, as well as China and other countries.
MKS trades on the NASDAQ stock market under the symbol MKSI.
As of October 27, 2026, MKSI stock price climbed to $211.43 with 603,962 million shares trading.
MKSI has a beta of 1.85, meaning it tends to be more sensitive to market movements. MKSI has a correlation of 0.17 to the broad based SPY ETF.
MKSI has a market cap of $14.22 billion. This is considered a Large Cap stock.
Last quarter MKS reported $1 billion in Revenue and $3.30 earnings per share. This beat revenue expectation by $44 million and exceeded earnings estimates by $.35.
In the last 3 years, MKSI traded as high as $447.62 and as low as $54.84.
The top ETF exchange traded funds that MKSI belongs to (by Net Assets): VTI, IJH, VB, VBK, VXF.
MKSI has outperformed the market in the last year with a return of +48.6%, while the SPY ETF gained +14.9%. However, in the most recent history, MKSI shares have underperformed the stock market with its stock returning -35.7% in the last 3 month period and -15.4% for the last 2 week period, while SPY has returned +4.5% and -1.0%, respectively.
MKSI support price is $194.15 and resistance is $210.41 (based on 1 day standard deviation move). This means that using the most recent 20 day stock volatility and applying a one standard deviation move around the stock's closing price, stastically there is a 67% probability that MKSI shares will trade within this expected range on the day.