MKSI

MKS Inc.
NasdaqGSUSDEQUITY Technology DELAYED
Last price
281.80
▲ 1.30 (0.46%)
MARKET · —

Price

1D — H — L — Range — Vol —
Drag pan · Pinch zoom · Hold crosshair · pick a tool then drag to draw
Open
281.00
Prev close
280.50
Day high
286.38
Day low
276.56
Volume
1.06M
Market cap
$19.03B
P/E (TTM)
44.60
52W range
120.91 – 447.62

Day trading desk

Current session · delayed
Gap from prior close
+0.18%
Prior close 280.50
VWAP
280.33
+0.53% from price
Relative volume
0.70×
Normal
Session range
6.40%
276.55 – 294.27
Position in range
30%
Near session low
ATR (14D)
9.89
3.51% of price
Prior day high
284.21
PDH
Prior day low
273.60
PDL
Bid / ask spread
—
Quote not published
Session volume
937.65K
Avg 1.34M

VWAP and the session figures are computed from the delayed intraday series on this page, so they lag the live tape and will not match a broker's real-time VWAP exactly. Turn on Prior day H/L/C, Opening range and Volume profile in the chart's Studies menu to see these levels drawn on price.

Trailing performance

Price return · vs SPY
Returnvs SPY
1W
+5.79% +3.8%
1M
+8.11% +7.0%
3M
-19.46% -24.0%
6M
+18.16% -0.0%
YTD
+76.10% +61.9%
1Y
+104.13% +87.7%
3Y
+225.18% +142.9%
5Y
— —

Price return only. Dividends are not reinvested, so total return on a dividend payer will be higher than shown.

Unusual options activity

Account required
Nothing crossed the thresholds in the expiries we scanned.
That is the normal state — most contracts trade well inside their existing open interest.
Free account required

Contracts trading at or above their open interest, ranked by notional and where the print landed.

Free account

17 more panels on MKSI open with an account.

Options chains and analytics, valuation ratios, insider filings, analyst targets and ownership. No card, no trial, nothing to cancel.

Insider net activity

6m · Form 4 rollup
Net shares
-67.11K
Net selling
Buy transactions
9
11.03K shares
Sell transactions
18
78.14K shares
Net transactions
+27
Buys less sells
Sell : buy shares
7.1 : 1
Heavily one-sided
Insider-held shares
326.59K
Total on file
Bought 11.03KSold 78.14K

Insider transactions

Account required
DateInsiderAction SharesValueHeld
Sep 1, 26
MORA ELIZABETH A
Director
SELL 300 $75.29K Direct
Aug 14, 26
LEE JOHN TSENG-CHUNG
Chief Executive Officer
SELL 10.00K $3.02M Direct
Aug 3, 26
WILLIAMS JOHN EDWARD
Officer
SELL 457 $131.76K Direct
Jun 12, 26
SCHREINER JAMES ALAN
Chief Operating Officer
SELL 3.50K $1.21M Direct
Jun 10, 26
SCHREINER JAMES ALAN
Chief Operating Officer
SELL 781 $247.91K Direct
Jun 5, 26
MCCARTHY MICHELLE M
Officer
SELL 2.43K $767.27K Direct
Jun 1, 26
MORA ELIZABETH A
Director
SELL 300 $95.41K Direct
Jun 1, 26
HENRY DAVID PHILIP
Officer
SELL 6.00K $1.89M Direct
May 27, 26
COLELLA GERARD G
Director
SELL 20.00K $6.67M Indirect
May 27, 26
DONAHUE JOSEPH B
Director
SELL 2.10K $688.70K Direct
May 26, 26
HENRY DAVID PHILIP
Officer
SELL 2.50K $826.25K Direct
May 22, 26
MAYAMPURATH RAMAKUMAR
Chief Financial Officer
SELL 8.81K $2.78M Direct
May 22, 26
LEE JOHN TSENG-CHUNG
Chief Executive Officer
SELL 10.00K $3.15M Direct
May 18, 26
CANNONE PETER J III
Director
SELL 1.35K $409.59K Direct
What this is, and what it is not

These are SEC Form 4 filings — officers, directors and 10% owners reporting their own trades in the company's stock. Filing is due within two business days of the transaction, so this lags reality by days, and the provider adds its own lag on top.

A sale is not automatically bearish. Executives sell on scheduled 10b5-1 plans, to cover tax on vesting equity, and to diversify. Purchases with cash are generally the more informative signal, and they are far rarer.

This does not include congressional or senate trading. That comes from STOCK Act disclosures filed with the Senate eFD system and the House Clerk, which this data source does not carry.

Free account required

Officer and director trades in their own stock, straight from Form 4 filings.

Insider holders

10 reporting
NameRelationShares heldLatest
BATRA RAJEEV
Director 16.23K Stock Award(Grant)
BURKE KATHLEEN FLAHERTY
General Counsel 49.44K Sale
COLELLA GERARD G
Director — Sale
DONAHUE JOSEPH B
Director 10.03K Sale
HENRY DAVID PHILIP
Officer 10.42K Sale
LEE JOHN TSENG-CHUNG
Chief Executive Officer 134.78K Sale
MOLONEY JACQUELINE F
Director 8.78K Sale
MORA ELIZABETH A
Director 19.14K Sale
SCHREINER JAMES ALAN
Chief Operating Officer 19.20K Sale
TARANTO ERIC ROBERT
Officer 12.60K Sale

Fundamentals

TTM · reported
Market cap$19.03B
Enterprise value$22.60B
Revenue (TTM)$4.35B
Gross profit$2.04B
EBITDA$1.06B
Net income$439.00M
EPS (TTM)$6.31
Free cash flow$480.38M
Total cash$611.00M
Total debt$4.19B
Book value / share$44.20
Shares outstanding67.62M
Float67.22M
Short % of float10.21%
Dividend yield0.36%
Beta (5Y)2.03

Valuation & profitability ratios

Account required
Trailing P/E44.60
Forward P/E15.94
PEG ratio1.32
Price / sales—
Price / book6.37
EV / revenue5.20
EV / EBITDA21.38
Gross margin46.95%
Operating margin20.59%
Profit margin10.10%
Return on equity15.85%
Return on assets5.02%
Debt / equity140.09
Current ratio1.14
Free account required

Fourteen ratios including P/E, PEG, EV/EBITDA, margins and return on equity.

Financial statements

As reported · 4 years · 5 quarters
Blank means not reported, not zero
Line item2025202420232022YoY
Total revenue $3.93B$3.59B$3.62B$3.55B +9.6%
Operating revenue $3.93B$3.59B$3.62B$3.55B +9.6%
Cost of revenue $2.09B$1.88B$1.98B$2.00B +11.5%
Gross profit $1.84B$1.71B$1.64B$1.55B +7.6%
Research & development $299.00M$271.00M$288.00M$241.00M +10.3%
Selling, general & admin $724.00M$674.00M$675.00M$488.00M +7.4%
Total operating expense $1.27B$1.19B$1.26B$875.00M +6.7%
Operating income $567.00M$518.00M$384.00M$672.00M +9.5%
Net interest income -$200.00M-$268.00M-$341.00M-$173.00M +25.4%
Pre-tax income $304.00M$180.00M-$1.93B$433.00M +68.9%
Tax provision $9.00M-$10.00M-$87.00M$100.00M +190.0%
Net income $295.00M$190.00M-$1.84B$333.00M +55.3%
Net income to common $295.00M$190.00M-$1.84B$333.00M +55.3%
Basic EPS 4.392.82-27.545.57 +55.7%
Diluted EPS 4.372.81-27.545.56 +55.5%
EBIT $533.00M$522.00M-$1.51B$616.00M +2.1%
EBITDA $877.00M$870.00M-$1.11B$832.00M +0.8%
Basic shares 67.30M67.30M66.80M59.70M 0.0%
Diluted shares 67.70M67.60M66.80M59.90M +0.1%

Options analytics

Account required
Put / call volume
1.39
Put-heavy session
Put / call open interest
0.50
Positioning, not flow
Max pain
240.00
-14.7% from spot
ATM implied vol
52.2%
Nearest strike to spot
Skew (10% OTM)
+0.2%
Puts bid over calls
Call volume
163
Contracts, this expiry
Put volume
226
Contracts, this expiry
Heaviest call OI
280.00
596 contracts
Heaviest put OI
220.00
689 contracts

Max pain is the strike at which the largest dollar value of open contracts expires worthless. It describes current positioning; it is not a forecast and it moves as open interest changes.

Free account required

Put/call ratios, max pain, implied volatility skew and where open interest is concentrated.

Earnings

History & consensus estimates
Reported vs expected · EPS
QuarterEst.ActualSurprise
Jun 2026 2.963.30 +11.4%
Mar 2026 2.052.30 +12.0%
Dec 2025 2.462.47 +0.3%
Sep 2025 1.851.93 +4.1%
Forward consensus
PeriodEPSAnalystsRevenueGrowth
Current quarter 3.63 13 $1.36B +37.2%
Next quarter 3.92 13 $1.40B +35.4%
Current year 13.15 13 $5.08B +29.3%
Next year 17.65 13 $6.13B +20.7%

Analyst targets & ownership

Account required
Mean target$410.86
High target$600.00
Low target$270.00
Implied upside45.80%
Analyst count14
ConsensusNONE
Strong buy / Buy3 / 9
Hold1
Sell / Strong sell1 / 0
Held by insiders0.48%
Held by institutions107.07%
Institutions holding1.01K
Free account required

Price targets, consensus spread, insider and institutional ownership.

Moving averages & technicals

Computed from 2Y daily closes
SMA 10
268.36
+5.01% from price
SMA 20
259.82
+8.31% from price
SMA 50
274.24
+2.61% from price
SMA 100
311.17
-9.44% from price
SMA 200
273.33
+2.95% from price
EMA 12
268.69
+4.88% from price
EMA 26
267.63
+5.29% from price
EMA 50
277.74
+1.46% from price
RSI (14)
59.1
Neutral
MACD (12,26,9)
1.06
Hist 4.87
ATR (14)
9.89
3.51% of price
Realised vol 30D
48.7%
Annualised
Bollinger upper
287.71
20, 2σ
Bollinger lower
231.93
20, 2σ
50 / 200 cross
Golden
274.24 vs 273.33
Trend bias
Above 200
+2.95%

Options chain

Account required
Expiry
Spot 281.80
Calls
StrikeLastBidAskVolOIIV
000.000.000.000.00000.0%
000.000.000.000.00000.0%
000.000.000.000.00000.0%
000.000.000.000.00000.0%
000.000.000.000.00000.0%
000.000.000.000.00000.0%
000.000.000.000.00000.0%
Puts
StrikeLastBidAskVolOIIV
000.000.000.000.00000.0%
000.000.000.000.00000.0%
000.000.000.000.00000.0%
000.000.000.000.00000.0%
000.000.000.000.00000.0%
000.000.000.000.00000.0%
000.000.000.000.00000.0%
Free account required

Every listed expiry, both sides of the book, with volume, open interest and implied volatility.

Risk profile

Daily returns · 1Y window
Beta vs SPY
2.80
More volatile than market
Correlation to SPY
0.59
Loosely linked
Realised vol 30D
48.7%
Annualised
Market vol 1Y
13.0%
SPY, annualised
Max drawdown 1Y
-48.0%
Peak to trough
Max drawdown 5Y
-67.5%
Peak to trough
ATR 14
9.89
3.51% of price
Beta (reported)
2.03
5Y monthly, from filing

Short interest

Semi-monthly exchange report · lags by ~2 weeks
Shares short
6.07M
Prior 5.49M
Change vs prior
+10.7%
Shorts adding
% of float
10.21%
Elevated
% of shares out
8.98%
Against total outstanding
Days to cover
4.6
Liquid
Float
67.22M
Freely tradeable shares

Exchanges publish short interest twice a month with a settlement lag, so this is roughly two weeks behind. Days to cover divides shares short by average daily volume — it estimates how long covering would take, not whether it will happen.

Rating changes

190 on file
DateFirm ActionFromTo
Sep 17, 26 Morgan Stanley MAINTAINED Overweight Overweight
Aug 25, 26 Mizuho MAINTAINED Outperform Outperform
Aug 7, 26 Citigroup MAINTAINED Buy Buy
Aug 7, 26 JP Morgan MAINTAINED Overweight Overweight
Aug 7, 26 Wells Fargo MAINTAINED Equal-Weight Equal-Weight
Aug 6, 26 Needham MAINTAINED Buy Buy
Aug 3, 26 Cantor Fitzgerald MAINTAINED Overweight Overweight
Jul 24, 26 Citigroup MAINTAINED Buy Buy
Jul 9, 26 Mizuho MAINTAINED Outperform Outperform
Jul 6, 26 Morgan Stanley MAINTAINED Overweight Overweight
Jun 30, 26 BMO Capital INITIATED — Outperform
Jun 29, 26 Cantor Fitzgerald MAINTAINED Overweight Overweight

Dividends & splits

Declared · from the issuer
Forward rate$1.00 / yr
Forward yield0.36%
5-year avg yield0.65%
Payout ratio14.94%
Ex-dividend dateAug 25, 2026
Next pay dateSep 3, 2026
Last split—
Split date—

PRIVATE STRATEGY · BY QUALIFICATION

The same data. A different seat.

The research you are reading is the input layer for a discretionary options program we run for a small number of qualified investors. Minimum $1,000,000.