What is KLAC's market cap?

$195.67B, based on the Nov 4 close of $150.17.

What is KLAC's P/E ratio?

37.2× trailing-twelve-month earnings of $5.26B.

Does KLA pay a dividend?

Yes. The latest regular dividend was $0.23 per share (ex-date Aug 17), an annualised yield of 0.61%.

How much of KLAC is sold short?

24.9M shares, 1.9% of float, as of Oct 15, 2026.

What sector is KLAC in?

Healthcare, in the Optical Instruments industry.

NASDAQ · KLACHealthcareOptical Instruments

KLA Corporation Common Stock (KLAC)

$150.17−3.86%

Close Nov 4, 2026 · split-adjusted

Nov 4, 2026$150.17▲ 23.18% in range

Nov 3, 2025Low $24.12 · High $301.71Nov 4, 2026

What changed · written from our data

As of Nov 4, 2026

KLA closed at $150.17 on Nov 4, down 3.86%, 50.2% below its 52-week closing high. Volume of 5.8M shares was 0.48× its 20-day average (below normal).

Split-adjusted performance: -23.9% over one month, -17.3% over six months, +23.2% over one year.

In the quarter ended Sep 30, 2026, revenue was $4.14B, up 28.9% from a year earlier, with a net margin of 37.4%.

Short interest was 24.9M shares at the Oct 15 settlement, up 2.6% from the prior report (1.9% of float, 2.7 days to cover).

Market cap$195.67B1.30B shares

Revenue · quarter$4.14B+28.9% YoY

Diluted EPS$1.18+38.8% YoY

P/E · TTM37.2×P/S 13.5×

Net margin37.4%Gross 61.9%

Dividend yield0.61%$0.23 last paid

52-week range24.12 – 301.71−50.2% from high

Volume5.8M0.48× 20-day avg

Volatility · 60d50.1%Annualised

Short % of float1.9%2.7 days to cover

Net cash-$982.1MCash $4.74B

Next earnings—Not scheduled

Split-adjusted performance

1W −5.4%1M −23.9%3M −22.3%6M −17.3%YTD +23.6%1Y +23.2%3Y +226.8%5Y +340.9%

Earnings reactions

History →

No reported quarters with price history yet.

Rank within Optical Instruments

Percentile among 5 companies (100 = best)

6-month momentum—

Revenue growth—

Net margin—

Value (low P/E)—

Size—

Industry medians: 6-month return −41.1%, revenue growth +26.1%, net margin 11.8%, P/E 37.2×.

Short interest

Details →

Shares short24.9M+2.6% vs prior

Days to cover2.7Settled Oct 15

% of float1.9%

Short vol. 10d23.6%of daily volume

Closest peers by size in Optical Instruments

Company	Price	Today	6M	Rev. growth	Net margin	P/E	Mkt cap
KLACKLA	$150.17	−3.86%	−17.3%	+28.9%	37.4%	37.2	$195.67B
COHRCoherent	$190.42	−8.23%	−44.8%	+33.7%	11.8%	48.7	$37.50B	Compare
OPTXSyntec Optics Holdings	$4.49	−10.91%	−41.1%	+26.1%	3.1%	—	$180.9M	Compare
OPXSOptex Systems Holdings	$9.05	−1.09%	−16.7%	−12.4%	13.2%	16.2	$63.0M	Compare
MSAIMultiSensor AI Holdings	$3.20	+0.47%	−48.4%	+19.5%	−145.1%	—	$7.0M	Compare

News about KLA

All news →

The Zacks Analyst Blog Highlights Lilly, Cisco, KLA, Oil-Dri Corp. of America and NVEZacks Investment Research · 23h ago▲ Positive Top Analyst Reports for Eli Lilly, Cisco & KLAZacks Investment Research · 1d ago▲ Positive KLA (KLAC) Q1 Earnings: How Key Metrics Compare to Wall Street EstimatesZacks Investment Research · 5d ago▲ Positive Can Advanced Packaging Demand Drive KLAC's Next Growth Phase?Zacks Investment Research · 5d ago▲ Positive KLAC Q1 Earnings Beat Estimates, Revenues Rise on AI DemandZacks Investment Research · 6d ago▲ Positive

Quick answers

What does KLA do?: KLA is one of the largest semiconductor wafer fabrication equipment, or WFE, manufacturers in the world. It specializes in the market segment of semiconductor process control, wherein machines inspect semiconductor wafers during research and development and manufacturing for defects and verify precise measurements.
What is KLAC's market cap?: $195.67B, based on the Nov 4 close of $150.17.
What is KLAC's P/E ratio?: 37.2× trailing-twelve-month earnings of $5.26B.
Does KLA pay a dividend?: Yes. The latest regular dividend was $0.23 per share (ex-date Aug 17), an annualised yield of 0.61%.
How much of KLAC is sold short?: 24.9M shares, 1.9% of float, as of Oct 15, 2026.
What sector is KLAC in?: Healthcare, in the Optical Instruments industry.

About KLA

KLA is one of the largest semiconductor wafer fabrication equipment, or WFE, manufacturers in the world. It specializes in the market segment of semiconductor process control, wherein machines inspect semiconductor wafers during research and development and manufacturing for defects and verify precise measurements. In this section of the market, KLA holds a majority share. It also has a small exposure to the etch and deposition segments of the WFE market. It counts as top customers the largest chipmakers in the world, including TSMC and Samsung.

HQ: Milpitas, CA17,200 employeesListed Oct 8, 1980kla.com

Sources: Massive / Polygon daily aggregates (split-adjusted) · SEC filings via Massive · FINRA settlements via Massive · Financial Modeling Prep. Figures are dated where shown; research is informational, not investment advice. Methodology