How did Lam Research perform in the March 2025 quarter?

Lam reported revenue of $4.72 billion, up 8% from the prior quarter and roughly 24% higher than a year earlier. GAAP gross margin rose to 49.0% and GAAP operating margin to 33.1%, with GAAP diluted EPS of $1.03 and non-GAAP EPS of $1.04. Growth was driven by systems revenue, which rose to $3.04 billion, while customer support and other revenue declined slightly.

What is Lam Research guiding for the June 2025 quarter?

Lam guided to revenue of $5.00 billion (+/- $300 million), a U.S. GAAP gross margin of 49.4% (+/- 1%), a U.S. GAAP operating margin of 33.4% (+/- 1%), and U.S. GAAP diluted EPS of $1.20 (+/- $0.10), based on about 1.28 billion diluted shares. The guidance is an estimate and excludes future acquisitions, divestitures and other unannounced items.

How is Lam Research managing its balance sheet and capital returns?

During the quarter Lam repaid $504 million of debt principal, repurchased $435 million of stock and paid $296 million in dividends. Total long-term debt fell to $3.73 billion, while $754 million of debt is now current. Cash and restricted cash decreased to $5.5 billion, though operating cash flow of $1.31 billion covered capital returns and $289 million of capital expenditures.

What risks did management highlight?

Management pointed to near-term tariff-related uncertainty, trade regulations and export controls, supply chain cost increases, and geopolitical tensions. Revenue concentration is significant, with China at 31% of the March quarter's revenue, along with Korea and Taiwan at 24% each and Japan at 10%. Japan revenue is recognized only upon customer acceptance, which can shift timing.

Why do GAAP and non-GAAP results differ?

The gap is small this quarter. Non-GAAP adjustments exclude amortization of acquired intangibles, changes in elective deferred compensation liabilities and assets, and amortization of debt discounts. The effect on EPS is $0.01 (GAAP $1.03 versus non-GAAP $1.04), and the company also excludes a one-time tax benefit in the prior quarter, which boosted that period's GAAP results.

LRCX 8-K: Earnings & Results

01—Abstract

Summary

Summary of the 8-K filed April 23, 2025. Cited figures are marked; the original filing is the authoritative source.

Lam Research (LRCX) reported fiscal Q3 2025 results for the quarter ended March 30, 2025, with revenue of $4.72 billion^a, up 8% sequentially from $4.38 billion and up roughly 24% year over year from $3.79 billion.

U.S. GAAP gross margin expanded to 49.0% (+160 bps Q/Q) and GAAP operating margin rose to 33.1% (+260 bps Q/Q). U.S. GAAP diluted EPS was $1.03^b (up 12% Q/Q), while non-GAAP diluted EPS was $1.04 (up 14% Q/Q). Systems revenue grew to $3.04 billion from $2.63 billion, while customer support-related revenue declined modestly to $1.68 billion from $1.75 billion.

Management, led by CEO Tim Archer, described the portfolio as the strongest it has ever been and said it is highly confident in outperforming industry growth, while acknowledging near-term tariff-related uncertainty. Cash, equivalents and restricted cash fell to $5.5 billion^c from $5.7 billion, reflecting roughly $1.2 billion in financing outflows during the quarter, including $504 million of debt principal repayment, $435 million of share repurchases and $296 million of dividends, along with $289 million of capital expenditures. Operating cash flow was strong at $1.31 billion.

Long-term debt dropped to $3.73 billion^d from $4.48 billion, largely because the $504 million principal payment and a reclassification of debt to current liabilities, which rose to $754 million. Customer concentration remains notable: China accounted for 31% of revenue, Korea and Taiwan 24% each, and Japan 10%.

For the June 2025 quarter, guidance calls for revenue of $5.00 billion (+/- $300 million), U.S. GAAP gross margin of 49.4% (+/- 1%), U.S. GAAP operating margin of 33.4% (+/- 1%), and U.S. GAAP EPS of $1.20 (+/- $0.10) on 1.28 billion diluted shares. The guidance implies continued sequential growth, but investors should weigh it against tariff, export-control and geopolitical risks that management explicitly flagged.

02—Key points

Key Highlights

Revenue of $4.72B, up 8% Q/Q and about 24% Y/Y, with systems revenue up 16% Q/Q to $3.04B
U.S. GAAP gross margin of 49.0% (+160 bps Q/Q) and operating margin of 33.1% (+260 bps Q/Q), showing meaningful profitability improvement
U.S. GAAP diluted EPS of $1.03 (+12% Q/Q); non-GAAP diluted EPS of $1.04 (+14% Q/Q)
Operating cash flow of $1.31B in the quarter and $3.62B year to date, funding $435M of buybacks and $296M of dividends
Cash fell to $5.5B from $5.7B; long-term debt declined to $3.73B from $4.48B, with $754M now classified as current
June 2025 quarter guidance: revenue of $5.00B +/- $300M, U.S. GAAP EPS of $1.20 +/- $0.10
Geographic concentration remains high: China 31%, Korea 24%, Taiwan 24%, Japan 10% of revenue; management cites tariff-related uncertainty

03—Questions

Frequently Asked Questions

How did Lam Research perform in the March 2025 quarter?
Lam reported revenue of $4.72 billion, up 8% from the prior quarter and roughly 24% higher than a year earlier. GAAP gross margin rose to 49.0% and GAAP operating margin to 33.1%, with GAAP diluted EPS of $1.03 and non-GAAP EPS of $1.04. Growth was driven by systems revenue, which rose to $3.04 billion, while customer support and other revenue declined slightly.
What is Lam Research guiding for the June 2025 quarter?
Lam guided to revenue of $5.00 billion (+/- $300 million), a U.S. GAAP gross margin of 49.4% (+/- 1%), a U.S. GAAP operating margin of 33.4% (+/- 1%), and U.S. GAAP diluted EPS of $1.20 (+/- $0.10), based on about 1.28 billion diluted shares. The guidance is an estimate and excludes future acquisitions, divestitures and other unannounced items.
How is Lam Research managing its balance sheet and capital returns?
During the quarter Lam repaid $504 million of debt principal, repurchased $435 million of stock and paid $296 million in dividends. Total long-term debt fell to $3.73 billion, while $754 million of debt is now current. Cash and restricted cash decreased to $5.5 billion, though operating cash flow of $1.31 billion covered capital returns and $289 million of capital expenditures.
What risks did management highlight?
Management pointed to near-term tariff-related uncertainty, trade regulations and export controls, supply chain cost increases, and geopolitical tensions. Revenue concentration is significant, with China at 31% of the March quarter's revenue, along with Korea and Taiwan at 24% each and Japan at 10%. Japan revenue is recognized only upon customer acceptance, which can shift timing.
Why do GAAP and non-GAAP results differ?
The gap is small this quarter. Non-GAAP adjustments exclude amortization of acquired intangibles, changes in elective deferred compensation liabilities and assets, and amortization of debt discounts. The effect on EPS is $0.01 (GAAP $1.03 versus non-GAAP $1.04), and the company also excludes a one-time tax benefit in the prior quarter, which boosted that period's GAAP results.

04—Continue

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