KLA Corporation (KLAC) Stock
NASDAQKLAC has an Alpha Score of 34 out of 100 (poor), computed on Nov 2, 2026 from 3 of 4 sub-scores. 14 members of Congress disclosed 31 trades in KLAC since 2014: 17 purchases and 14 sales, most recently Michael Rulli (purchase, Jul 1, 2026). 7 of the hedge funds AlphaScala tracks reported KLAC in 13F filings for the quarter ended Jun 30, 2026; the largest reported position is Citadel's at $766.67M. Company insiders reported 0 open-market buys and 11 sales on SEC Form 4 in the 90 days to Oct 30, 2026. Its trailing P/E ratio is 44.2 and its net margin 35.6% (key statistics as of Oct 22, 2026).
What is KLAC's Alpha Score?
How it works →Alpha Score of 34 reflects weak overall profile with poor momentum, poor value, strong quality. Based on 3 of 4 signals – score is capped at 90 until remaining data ingests.
Computed from 3 of 4 sub-scores; a sub-score is left out when its inputs are missing, and the composite is capped accordingly.
Computed Nov 2, 2026
A rules-based research rating, not a recommendation to buy or sell.
Which members of Congress traded KLA Corporation (KLAC)?
Most recent: Michael Rulli (purchase, Jul 1, 2026); records start Mar 13, 2014.
| Politician | Trade date | Type | Amount |
|---|---|---|---|
| Michael Rulli R-OH · House | 2026-07-01 | purchase | $1k – $15k |
| Lizzie Fletcher D-TX · House | 2026-04-08 | partial sale | $1k – $15k |
| Alan Armstrong R-OK · Senate | 2026-03-27 | purchase | $1k – $15k |
| Val Hoyle D-OR · House | 2025-09-23 | sale | $1k – $15k |
| Val Hoyle D-OR · House | 2025-07-28 | purchase | $1k – $15k |
| Val Hoyle D-OR · House | 2025-04-29 | sale | $1k – $15k |
| Bill Keating D-MA · House | 2025-01-24 | purchase | $1k – $15k |
| Gil Cisneros D-CA · House | 2025-01-13 | partial sale | $1k – $15k |
From STOCK Act periodic transaction reports. House filings as of Nov 1, 2026. Senate records here end Oct 21, 2026; later Senate trades are not included.
Every member of Congress who traded KLAC, with filing lags →Which hedge funds own KLAC?
From 13F filings| Fund | Shares Held | Position Value | Change vs prior Q |
|---|---|---|---|
| Citadel Ken Griffin | 2.54M | $766.67M | +6608% |
| Altimeter Capital Brad Gerstner | 578K | $174.46M | NEW |
| Bridgewater Associates Ray Dalio | 328K | $98.98M | +202% |
| Marshall Wace | 291K | $87.88M | +218% |
| Millennium Management Israel Englander | 178K | $53.67M | +604% |
| D.E. Shaw David Shaw | 80K | $24.20M | +62% |
| Maverick Capital Lee Ainslie | 6K | $1.69M | NEW |
13F holdings as of Jun 30, 2026
Explore all tracked funds →Are KLA Corporation insiders buying or selling?
SEC Form 4 filings| Date | Insider | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| Sep 15, 26 | Wallace Richard P | President and CEO | SELL | 72.0K | $12.4M |
| Aug 13, 26 | Lorig Brian | EVP, KLA Global Services | SELL | 59.6K | $12.4M |
| Aug 12, 26 | Higgins Bren D. | EVP & Chief Financial Officer | SELL | 31.5K | $6.6M |
| Aug 11, 26 | Wallace Richard P | President and CEO | SELL | 87.6K | $17.4M |
| Aug 11, 26 | Khan Ahmad A. | President, Semi. Prod. & Cust. | SELL | 33.2K | $6.6M |
| Aug 10, 26 | Wilkinson Mary Beth | EVP, CLO and Secretary | SELL | 1.7K | $340K |
| Aug 10, 26 | Kirloskar Virendra A | SVP & Chief Accounting Officer | SELL | 529 | $108K |
| Aug 7, 26 | Kirloskar Virendra A | SVP & Chief Accounting Officer | SELL | 2.4K | $475K |
| Aug 7, 26 | Wilkinson Mary Beth | EVP, CLO and Secretary | SELL | 21.8K | $4.3M |
| Aug 5, 26 | Kirloskar Virendra A | SVP & Chief Accounting Officer | SELL | 4.5K | $881K |
SEC Form 4 filings as of Oct 30, 2026 · not updated for 4 days; newer filings may exist
See cluster-buy signals across all tickers →What are KLAC's key statistics?
Key statistics as of Oct 22, 2026
How does KLAC's valuation compare with the Technology sector?
| Metric | KLAC | Technology median | Companies in median |
|---|---|---|---|
| P/E ratio | 44.2 | 33.2 | 167 |
| Net margin | 35.57% | 11.43% | 191 |
| Return on equity | 85.38% | 15.27% | 194 |
| Dividend yield (payers) | 1.04% | 1.42% | 70 |
Medians over the Technology stocks whose key statistics were refreshed in the last 35 days (newest Nov 3, 2026). P/E excludes loss-making companies.
KLAC price chart
Powered by TradingViewWhat does KLA Corporation do?
KLA Corporation is a leading American technology company headquartered in Milpitas, California, specializing in wafer fabrication equipment for the semiconductor and nanoelectronics industries. It provides comprehensive process control and yield management systems, including advanced defect inspection, metrology, in situ monitoring, chemistry control, software solutions, and etch and deposition tools, supporting all phases from research and development to high-volume manufacturing of wafers, reticles, integrated circuits, and packaging. Formed in 1997 through the merger of KLA Instruments and Tencor Instruments, the company has grown via strategic acquisitions, enhancing capabilities in optical inspection, computational lithography, and automated optical systems, and rebranded to KLA Corporation in 2019. KLA's solutions enable production of diverse devices like advanced logic, 3D NAND memory, power devices, RF communications, LEDs, photonics, and MEMS, improving chip quality, accelerating development cycles, and boosting profitability for manufacturers. With a global footprint across 18 regions, approximately 15,000 employees, and significant R&D investment, KLA plays a pivotal role at the intersection of electron/photon optics, sensors, and AI, driving innovations in automotive, mobile, data centers, AI, advanced packaging, and IoT sectors. Its technology ensures high yields in complex fabs where defects smaller than 10 nanometers can compromise functionality, underpinning virtually every modern electronic device from smartphones to autonomous vehicles.