$MKSI
MKS Inc. Common Stock
XNAS•Technology•Industrial Instruments for Measurement, Display, and Control
Why is MKSI down today? It is at $303.27 (-3.14%), and our scanner flagged it 94 times on unusual volume this month. See the catalyst behind the move, real-time alerts the moment MKSI spikes, and full due diligence on MKSI — key stats, earnings, dilution and insider activity. Free.
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Key Stats
- Price
- $303.27
- Change today
- -3.14%
- Previous close
- $313.10
- 52-week range
- $95.54 – $447.62
- Market cap
- $21.15B
- Dividend yield
- 0.31% ($1.00)
- Institutional own.
- 99.9%
- Total held
- 100.0%
- Short interest
- 5.2M ▲ +4% vs prior · as of 2026-07-15
- Days to cover
- 3.9d
- Avg daily volume
- 1.3M
- Sector
- Technology
- Industry
- Industrial Instruments for Measurement, Display, and Control
- Exchange
- XNAS
- 5m
- 0.7x
- 15m
- 0.8x
- 1h
- 0.9x
- 1D
- 0.2x
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Why is $MKSI down today?
MKSI is one of today's most active names, trading on unusually heavy volume (live price and day move above). Our scanner has fired 3 unusual-volume and momentum alerts on MKSI today, peaking at 2.6x its normal volume. Fresh from the SEC: MKS Inc. Reports Second Quarter 2026 Financial Results. A material company disclosure like this is often the real catalyst behind a move of this size.
Likely catalystMKS Inc. Reports Second Quarter 2026 Financial ResultsReported Revenue of $1,248 million, above the high end of guidanceReported GAAP net income of $175 million and net income per diluted share of $2.41, each above the high end of guidanceReported Adjusted EBITDA of $358 million and Non-GAAP net earnings per diluted share of $3.30, each above the high end of guidance, from the latest SEC filing. Read it →Analyst data via Nasdaq. Not investment advice.
Insiders
7 buys, 16 sells last 3 months (7/50 over 12 months)Show 12 recent transactionsMinimize 12 recent transactions
| Insider | Action | Shares | % of position | Owns after | Value | Date |
|---|---|---|---|---|---|---|
Williams John Edward Officer | Sold (automatic/other) | -457 | sold 10% | 4K | $132K at $288.31 | Aug 3, 26 |
Schreiner James Alan Officer | Sold (automatic/other) | -4K | sold 15% | 19K | $1.2M at $345.52 | Jun 12, 26 |
Schreiner James Alan Officer | Sold (automatic/other) | -781 | sold 3.3% | 23K | $248K at $317.42 | Jun 10, 26 |
Mccarthy Michelle M Officer | Sold (automatic/other) | -2K | sold 100% | 2 | $767K at $315.23 | Jun 5, 26 |
Mora Elizabeth Director | Sold (automatic/other) | -300 | sold 1.5% | 19K | $95K at $318.02 | Jun 1, 26 |
Henry David Philip Officer | Sold (automatic/other) | -6K | sold 37% | 10K | $1.9M at $314.43 | Jun 1, 26 |
Colella Gerald G Director | Sold (automatic/other) | -20K 0.03% of company | sold 50% | 20K | $6.6M at $330.38 | May 27, 26 |
Donahue Joseph B Director | Sold (automatic/other) | -2K | sold 17% | 10K | $689K at $327.95 | May 27, 26 |
Henry David Philip Officer | Sold (automatic/other) | -3K | sold 13% | 16K | $826K at $330.50 | May 26, 26 |
Lee John Tseng-Chung Officer | Sold (automatic/other) | -10K 0.01% of company | sold 6.5% | 145K | $3.2M at $315.48 | May 22, 26 |
Mayampurath Ramakumar Officer | Sold (automatic/other) | -9K 0.01% of company | sold 100% | 1 | $2.8M at $315.48 | May 22, 26 |
Cannone Peter Iii Director | Sold (automatic/other) | -1K | sold 15% | 8K | $410K at $303.40 | May 18, 26 |
Recent Form-4 filings via Nasdaq. Open-market buys are the signal worth watching. Grants and automatic (10b5-1) sells are routine. “% of position” is the share of that insider’s own holding the trade moved. Not investment advice.
$MKSI Sentiment
BullishBlend of news sentiment, today’s move, and community votes. Not investment advice.
$MKSI Activity
News, unusual-volume alerts, AI-trader trades and community chatter — the whole story, newest first.
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MKSI stock FAQ
Why is $MKSI down today?
MKSI is one of today's most active names, trading on unusually heavy volume (live price and day move above). Our scanner has fired 3 unusual-volume and momentum alerts on MKSI today, peaking at 2.6x its normal volume. Fresh from the SEC: MKS Inc. Reports Second Quarter 2026 Financial Results. A material company disclosure like this is often the real catalyst behind a move of this size.
What is the MKSI stock price today?
MKSI last traded at $303.27, down 3.14% on the day. The price and chart above update live during market hours (4 AM to 8 PM ET).
Does MKSI pay a dividend?
Yes. MKSI currently has a dividend yield of about 0.31% ($1.00 per share per year). Dividend figures can change; this is not investment advice.
Where can I see live MKSI alerts?
The MKSI Live Alerts panel on this page streams real-time unusual volume (RVOL), momentum, halt and 200-EMA alerts from our scanner the moment they fire. Our scanner has flagged MKSI 94 times in the last 30 days.
What exchange is MKSI on?
MKSI (MKS Inc. Common Stock) trades on XNAS, with a market cap of about $21.15B in the INDUSTRIAL INSTRUMENTS FOR MEASUREMENT, DISPLAY, AND CONTROL sector.
Is MKSI good for day trading?
That depends on your strategy and risk. Day traders look for volume, volatility and a clear trend. Use the live chart, RVOL alerts and 200-EMA context on this page to judge MKSI for yourself. This is not investment advice.
Live data from TheDesperateTrader scanner. Not investment advice.