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MKSI
MKS Inc.Stock · Industrials
$306.10−$0.73 (-0.24%)as of market close, Aug 13, 2026
☾ After hours:$306.29+0.00%3:59 PM ET
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MKSI returns by year

MKS Inc. has returned +12.7% annually (CAGR) since 2000. Calendar-year, monthly and weekly total returns for MKS Inc. (MKSI) below, through August 13, 2026 — the most recent year is year-to-date.

Annualized (CAGR)
+12.7%
2000–2026
Average year
+14.0%
26 full years
Best year
+76.5%
2003
Worst year
-57.1%
2000
Positive years
17/26
65% up

MKS Inc. returns by year (20002026)#

Calendar-year returns with each year's path and its dividend contribution (dividend return = total minus price return).

MKS Inc. annual returns by year
YearTotal return
2026YTD
+91.9%
2025
+54.4%
2024
+2.2%
2023
+22.6%
2022
-51.0%
2021
+16.4%
2020
+37.7%
2019
+71.9%
2018
-31.1%
2017
+60.5%
2016
+67.7%
2015
+0.2%

Total return by period

-50%+0%+50%
'00'02'04'06'08'10'12'14'16'18'20'22'24'26

Methodology#

Returns are total returns (dividends reinvested), computed from MKSI's split- and dividend-adjusted closes. The bar chart switches between annual and monthly periods. Annualized return is the compound annual growth rate over the full period. The current year is year-to-date. See also the periodic table of returns. Past performance does not predict future returns; not investment advice.

See also: S&P 500 · Nasdaq-100 · Dow Jones · Russell 2000 · US Bond Market · Gold · Silver · Bitcoin · Ethereum

FAQ#

What is MKS Inc.'s average annual return?
Since 2000, MKS Inc. (MKSI) has returned about 12.7% a year (the compound annual growth rate) and an average calendar-year return of 14.0%.
What were MKS Inc.'s best and worst years?
Over 2000–2026, the best year was 2003 (+76.5%) and the worst was 2000 (-57.1%).
How often is MKS Inc. up in a year?
17 of the 26 full years since 2000 were positive — about 65% of the time.