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
MKSI weekly returns
MKS Inc. has averaged 0.45% per week, positive in 53% of weeks. Week-by-week returns for MKS Inc. (MKSI) below, through August 13, 2026 — the table lists the most recent weeks; the bar chart plots the last 2 years.
Average week
+0.5%
1428 weeks
Best week
+40.3%
Aug 18, 2000
Worst week
-32.4%
Apr 14, 2000
Positive weeks
53%
of all weeks
MKS Inc. weekly returns#
| Week ending | Path | Total return |
|---|---|---|
| Aug 13, 2026 | +0.4% | |
| Aug 7, 2026 | +2.5% | |
| Jul 31, 2026 | -9.6% | |
| Jul 24, 2026 | +1.4% | |
| Jul 17, 2026 | -11.9% | |
| Jul 10, 2026 | +0.8% | |
| Jul 2, 2026 | -5.9% | |
| Jun 26, 2026 | -4.4% | |
| Jun 18, 2026 | +14.2% | |
| Jun 12, 2026 | +17.9% | |
| Jun 5, 2026 | -6.9% | |
| May 29, 2026 | +1.1% |
Weekly total return (since Aug 23, 2024)
-20%-10%+0%+10%+20%
20252026
Methodology#
Weekly returns are total returns (dividends reinvested), computed from MKSI's split- and dividend-adjusted weekly (ISO week) closes. The table shows the most recent 260 weeks and the bar chart the most recent 104. See the year-by-year returns for the annual view. 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 weekly return?
- MKS Inc. (MKSI) has averaged about 0.45% per week, positive in roughly 53% of weeks. The best week was Aug 18, 2000 (+40.3%) and the worst was Apr 14, 2000 (-32.4%).