MKS Instruments' trading volume on February 19th was $361 million, a decrease of 52.36% compared to the previous trading day.

On February 19, 2026, semiconductor materials and equipment company MKS Instruments (MKSI) had a trading volume of $361 million, ranking 332nd among U.S. stocks on that day. The trading volume decreased by 52.36% compared to the previous day, with a daily trading volume of 1.4474 million shares.

MKS Instruments (MKSI) closed at $249.08 on February 19, 2026, down 0.51%. Over the past five trading days, the stock declined by 0.14%, increased by 5.81% for the entire month of February, and has risen 55.87% since the beginning of the year. Over the past 52 weeks, it has increased by 133.18%.

If the company has been listed for less than 52 weeks, the 52-week change is calculated from the listing date to the present (this also applies to listings of less than 1 month or fewer than 5 trading days).

MKS Instruments released its fiscal third quarter 2025 financial report (cumulative) on November 6, 2025. Revenue from January 1 to September 30, 2025, was $2.898 billion, a 9.28% year-over-year increase. Net profit was $188 million, up 89.90% year-over-year.

On February 19, 2026, Citigroup maintained a “Buy” rating for MKS Instruments with a target price of $295.

MKS Inc. was founded in Massachusetts in 1961. The company is a leading global provider of instruments, systems, and process control solutions used to measure, control, monitor, and analyze key parameters in advanced manufacturing processes to improve process performance and productivity. The company also offers related services, including product maintenance and repair, software support, installation services, and training. Its products are applied across various markets, applications, and processes. Its core competencies include pressure measurement and control, material delivery, gas composition analysis, control and information technology, capability, and reactive gas generation and vacuum technology. The primary markets served are semiconductor capital equipment and semiconductor device manufacturers, with applications in flat-panel displays, solar cells, LEDs, data storage media, and advanced products. The company also applies its technology to advanced manufacturing sectors, including medical devices, pharmaceuticals, energy, and environmental monitoring. The company is managed as a business division. Based on product functionality, type, and manufacturing process, its products are divided into three groups: instruments and control systems, power and reactive gas products, and vacuum products.