The price of MKS Inc. (MKSI) on October 9, 2026 is 264.50 USD, +1.58% on the day. Over 52 weeks the stock traded between 120.91 USD and 447.62 USD; the price now sits 44% of the way up that range. Over the past year the price changed by +98.92%. The P/E ratio is 54.0, which is above the sector median (35.6). Market capitalization is 17.67 billion USD, rank 5 among 14 stocks of the same industry with a known capitalization.
Closing prices for 09 October 2026
Next earnings report: 04 November 2026 · Earnings calendar
MKS Inc. trades on Nasdaq under the ticker MKSI. The company belongs to the Technology sector. The trading history on this page starts on 22 August 2016.
Over the past 52 weeks MKSI has traded between 120.91 $ and 447.62 $. As of 09 October 2026 the price stood 43.95 % of the way from the 52-week low to the high.
Over one year MKSI shares rose 98.92 %; over six months they fell 1.59 %. Volatility over 90 days is 73.59 %. Dividends are not included: this is price change only, as of 09 October 2026.
MKSI trades at a price-to-earnings ratio of 54.0, above the sector median of 35.6. Price to sales is 4.3, above the sector median of 3.6. Price to book is 6.3, above the sector median of 3.9. Calculated from reports for the period ending 31 March 2026.
| Date | Open | High | Low | Close | Volume, shares |
|---|---|---|---|---|---|
| 09 October 2026 | 266.09 | 267.96 | 256.74 | 264.50 | 636,381 |
| 08 October 2026 | 266.69 | 274.07 | 257.60 | 260.38 | 1M |
| 07 October 2026 | 271.72 | 274.99 | 269.11 | 273.15 | 1M |
| 06 October 2026 | 285.40 | 286.38 |
The series is stated in the current share scale after splits; dividends are not included in the price
Based on the last 12 months of reports, through 31 March 2026
The sector median covers every company in the sector on the US market, loss-making ones included.
MKS makes subsystems for the machines that produce chips — the parts inside the tools.
A maker of fab equipment does not build everything itself: flow controllers, vacuum pumps, power supplies and lasers are bought from specialist suppliers. Such subsystems are designed into the tool and qualified along with it, so they are rarely changed.
The second part is chemistry for printed circuit board manufacturing, acquired together with a large business and bringing noticeable debt. Demand follows fab capital spending, which is cyclical. Risks: the semiconductor cycle, export restrictions on shipments to China and the cost of servicing debt. The installed base supplies the other half of income: subsystems wear out and are replaced while the fab runs. The dividend is token.
Address:2 TECH DRIVE, ANDOVER, MA, 01810, US
MKS Inc. reported revenue of 4.1B $ and net income of 327M $ over the last four quarters. Net margin is 8.03 %. Revenue changed by +11.47 % year over year. Earnings per share are 4.78 $. Market capitalisation is 17.7B $.
MKSI has a return on equity of 11.63 %, above the sector median of 1.63 %. Return on assets is 3.75 %, above the sector median of 0.49 %. Operating margin is 13.90 %, above the sector median of 1.10 %.
MKS Inc. pays dividends quarterly: 0.97 $ per share over the past twelve months, a yield of 0.37 %. The latest payment was 0.25 $, with an ex-dividend date of 25 August 2026.
| 302M |
| FTVFortive Corporation | 57.26 | +1.49 % | 129M |
| RALRalliant Corporation | 73.38 | +2.11 % | 100M |
| CGNXCognex Corporation | 63.36 | +4.02 % | 98M |
| STSensata Technologies Holding plc | 42.27 | +0.09 % | 56M |
| 276.56 |
| 281.41 |
| 1M |
| 05 October 2026 | 279.79 | 284.21 | 273.60 | 280.50 | 1M |
| 02 October 2026 | 284.10 | 284.63 | 278.91 | 279.15 | 1M |
| 01 October 2026 | 265.57 | 275.48 | 262.77 | 271.24 | 1M |
| 30 September 2026 | 267.82 | 268.00 | 260.23 | 265.36 | 751,200 |
| 29 September 2026 | 264.18 | 266.28 | 261.36 | 266.02 | 807,000 |
| 28 September 2026 | 259.56 | 259.69 | 251.19 | 258.38 | 1M |
| 25 September 2026 | 261.01 | 262.66 | 257.90 | 260.82 | 683,200 |
| 24 September 2026 | 256.64 | 259.82 | 254.21 | 257.98 | 695,200 |
| 23 September 2026 | 260.37 | 263.78 | 253.41 | 262.72 | 2M |
| 22 September 2026 | 253.50 | 260.66 | 252.60 | 260.37 | 3M |
| 21 September 2026 | 258.20 | 259.00 | 251.79 | 256.92 | 946,300 |
| 18 September 2026 | 244.03 | 252.38 | 243.00 | 252.08 | 2M |
| 17 September 2026 | 245.50 | 250.84 | 238.45 | 240.23 | 1M |
| 16 September 2026 | 237.80 | 240.48 | 232.03 | 235.28 | 959,600 |
| 15 September 2026 | 242.60 | 242.60 | 228.46 | 231.50 | 2M |
| 14 September 2026 | 248.32 | 250.49 | 238.29 | 239.27 | 1M |