MKS Incorporated Stock Price & Performance
MKSI · NASDAQ NMS - GLOBAL MARKETLive market data · Last updated: July 4, 2026 at 7:12 p.m. (ET). Prices shown in USD and for information only — not investment advice.
MKS Incorporated (MKSI) is trading at $365.56 USD, down -11.07% today. It trades on NASDAQ NMS - GLOBAL MARKET in the Semiconductors sector. Market capitalization is approximately $24.69B USD.
How we think about MKS Incorporated at Evermore
MKS Incorporated (MKSI) operates in the Semiconductors sector and trades on NASDAQ NMS - GLOBAL MARKET. A single company — no matter how strong — carries concentration risk that a diversified portfolio does not. We generally frame any individual stock as one holding within a broader plan, sized so that a bad quarter for one company can't derail your goals.
How MKS Incorporated is taxed for Canadian investors
For a Canadian holding a US-listed stock like MKSI, two taxes matter. Capital gains on a sale are 50% taxable in Canada (see capital gains tax). Dividends paid by a US company face a 15% US withholding tax under the Canada–US tax treaty (with a valid W-8BEN on file). Prices here are quoted in USD, so currency movements between the USD and the Canadian dollar also affect your real return.
Can you hold MKS Incorporated in a TFSA or RRSP?
Yes — US-listed stocks are qualified investments for both. But the accounts are not equal for US dividends: inside an RRSP, US dividend withholding tax is waived under the treaty, while inside a TFSA the 15% withholding still applies and can't be recovered. For US dividend-payers, the RRSP is usually the more tax-efficient home.
Common Questions
What is MKS Incorporated's (MKSI) stock price today?
MKS Incorporated is trading at approximately $365.56 USD, down -11.07% on the day. Quotes update on a short cache and are for information only.
What is MKS Incorporated's market capitalization?
MKS Incorporated has a market capitalization of roughly $24.69B USD.
How are US stocks like MKSI taxed for Canadians?
Capital gains are 50% taxable in Canada. US dividends face a 15% US withholding tax under the Canada–US treaty (with a W-8BEN). The withholding is waived inside an RRSP but not inside a TFSA.
Can I hold MKSI in my TFSA or RRSP?
Yes — US-listed stocks are qualified investments for both. For US dividend-paying stocks, an RRSP is usually more tax-efficient because it avoids the 15% dividend withholding that a TFSA cannot recover.
Is MKS Incorporated a good investment?
That depends on your plan, time horizon, and risk tolerance — and on how a single stock fits alongside your other holdings. Speak with a CFP® or CIM® before making a concentrated bet on any one company.
Talk to a CFP® or CIM® at Evermore
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