Is KLAC stock a buy right now?

Is KLAC worth buying right now? That depends on your goals and timeline, and we don't make that call for anyone. What we can do is lay out the evidence investors usually weigh. KLAC trades at a P/E of 43.3, 15.28× sales, revenue +11.7% year over year (latest quarter Jun 2026).

Below, we look at where the stock trades today. We also cover what Wall Street analysts think. The piece shows how valuation compares with similar companies. And it reviews what insiders have done with their own shares.

The chart below tracks KLAC's daily closing price from May 4, 2026 to Oct. 28, 2026. Over that stretch it is down 7.1%, from $170.92 to $158.77, with a high of $301.37 on June 30, 2026 and a low of $145.61 on Oct. 23, 2026. Each red circle marks a week in which company insiders sold shares on the open market (6 weeks in this period; bigger circles mean more money). There are no green diamonds: no insider bought on the open market in this window.

Where KLAC trades today

The close on Oct. 28, 2026 was $158.77. That is 47.3% from the 52-week high of $301.37 and 45.3% above the 52-week low of $109.3. The one-month change is -19.2%. The three-month change is -11.9%.

KLAC valuation in one line

KLAC trades at a P/E of 43.3, 15.28× sales, revenue +11.7% year over year (latest quarter Jun 2026).

Also worth knowing about KLAC

Live KLAC data, updated every 30 minutes: KLAC insider trades, ownership and filings →

In Kla Corp's own words

“KLA’s September quarter beat the midpoint of guidance across all key metrics, demonstrating the accelerated growth we expected for the second half of calendar 2026”

— Rick Wallace, president and CEO of KLA Corporation · SEC filing

From the company's earnings release filed with the SEC on 2026-10-28 (Form 8-K).

What would change the picture for KLAC

These are the specific events and levels to watch. None of them is a prediction.

• The Oct. 28, 2026 earnings report is 0 days away. Kla Corp beat estimates in 3 of the last 4 quarters. The average surprise was +1.1%. A miss would break that pattern.
• No insider buying occurred on the open market in 90 days. A purchase by an executive or director would be the first in at least three months. It would appear on SEC Form 4 within two business days.
• A close above $301.37 would set a new 52-week high, 89.8% above the latest close of $158.77. A close below $109.3 would set a new 52-week low, 31.2% below it.
• Growth: revenue rose 11.7% year over year in the quarter ending Jun 2026 (trend: steady). At a P/E of 43.3, a slowdown would matter more than at a lower multiple.
• Dilution risk is moderate now. A new shelf registration (S-3) or prospectus supplement (424B) for an offering would raise it.

KLAC history: what happened after similar moves

Since 2023, KLAC fell 19.2% or more in a month 3 times (separate episodes, not counting the current one). Three months later it was higher in 1 of 3 cases; the median change was -3.8%.

Past moves don't predict the next one; they show how volatile the stock has been.

Questions people also ask

What is KLAC's 52-week high and low?

Over the past year KLAC closed as high as $301.37 and as low as $109.3. At $158.77 on Oct. 28, 2026, it is down 47.3% from the high. It is 45.3% above the low.

When does Kla Corp report earnings next?

The next report is expected on Oct. 28, 2026, 0 days from now. Kla Corp beat the average estimate in 3 of its last 4 reports.

Who is the largest shareholder of KLAC?

Among investment managers that file Form 13F, BlackRock Inc. reported the largest KLAC position at $38.1 billion. 2482 institutions reported holding KLAC for Q2 2026.

Does KLAC pay a dividend?

The dividend is $0.80 per share over the last 12 months, about 0.5% at today's price.

Are KLAC insiders buying or selling?

Insiders sold $65.4 million of KLAC on the open market in 90 days and bought none. Sales are often routine (taxes, diversification, pre-planned plans). Purchases with their own money send the stronger signal.

Is Kla Corp issuing new shares?

Dilution risk reads moderate (35/100). The share count fell 1.0% in a year. That is based on 1 offering-related filing in 12 months.

Dates to watch for KLAC

Insider trades can come any day: they must be filed on Form 4 within two business days.

Key terms on this page

P/E ratio

Price divided by the last 12 months of earnings per share. A P/E of 20 means investors pay $20 for each $1 of yearly profit. It is only defined when the company is profitable.

Price-to-sales

Market value divided by the last 12 months of revenue. Useful for companies with little or no profit, but it ignores margins.

Form 4

The SEC form a company's officers, directors and 10% owners must file within two business days of buying or selling its stock.

Open-market trade

A purchase or sale on the exchange at the market price, paid with the insider's own money (code P or S on Form 4), as opposed to option exercises, grants or gifts.

Form 13F

A quarterly SEC report listing the U.S. stock holdings of every investment manager with more than $100 million. It is due 45 days after each quarter ends, so it shows positions with a delay.

Dilution

When a company issues new shares, each existing share owns a smaller piece of the company. Common sources: stock offerings, convertible debt and large stock-based pay.

Form 8-K

The SEC form for material events between quarterly reports: earnings releases, deals, executive changes, stock offerings and similar news.

Where these numbers come from

Every number on this page is computed from the data when the page is refreshed (usually daily); nothing is typed in by hand. This is information, not investment advice.

• Price data covers daily closing prices through Oct. 28, 2026. Changes use 5, 21 and 63 trading days. The 52-week range uses the last 252 closes.
• Insider trades come from SEC Form 4 filings for the last 90 days. The count includes only open-market purchases (code P) and sales (code S). Option exercises, grants, gifts and filings with data errors are excluded.
• Earnings dates and estimates come from a market-data calendar. The data covers reported versus expected EPS for the last 4 quarters.
• Valuation and growth figures come from the company's SEC filings (XBRL data, latest quarter Jun 2026). P/E and price/sales use the latest close.
• Fund ownership data comes from SEC Form 13F filings for Q2 2026.
• Dilution: share-count changes and offering-related SEC filings (shelf registrations, prospectus supplements, convertible notes) over two years, scored 0-100.
• History tracks 21-trading-day moves over about three years of daily closes. Each episode is counted once.