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Last update: Sep 14, 2026, 6:10 PM ET
MKS Inc.
10.5% on Sep 14, 2026

Why MKS Inc. (MKSI) Stock Fell 10.5% on Sep 14, 2026

Researched by BestStocks Market Desk · Published Sep 14, 2026
Prior close
$267.31
Sep 14, 2026 close
$239.27
Change
−$28.04
-10.49%
Rel. volume
0.8×
1.2M shares

What happened

Valuation-10.5%high confidence

MKS Inc. shares fell 9.21% to $242.69 amid a broader risk-off market environment driven by rising Treasury yields and geopolitical tensions, compounded by post-earnings profit-taking following strong Q2 results announced roughly a month ago (finance.yahoo.com). Volume of 512,836 shares is tracking 0.73x historical average, typical for this stage of the trading session.

Source: fmp_intraday
What to watch next

MKS Inc. earnings scheduled for 2026-11-04 (consensus EPS estimate $3.53); monitor for any guidance revisions or commentary on order trends in light of current market sentiment.

Frequently asked questions

Why did MKS Inc. (MKSI) stock fall on Sep 14, 2026?

MKS Inc. shares fell 9.21% to $242.69 amid a broader risk-off market environment driven by rising Treasury yields and geopolitical tensions, compounded by post-earnings profit-taking following strong Q2 results announced roughly a month ago (finance.yahoo.com). Volume of 512,836 shares is tracking 0.73x historical average, typical for this stage of the trading session.

How much did MKSI stock fall on Sep 14, 2026?

MKSI fell 10.5% during the Sep 14, 2026 trading session.

This is an archived analysis of MKSI's Sep 14, 2026 session.
See MKSI's latest changes →
Educational research tool — not personalized investment advice. Figures reflect the Sep 14, 2026 session as first analyzed.