Lam Research Posts Record $5.84 Billion March Quarter and Lifts 2026 Equipment Outlook to $140 Billion as AI Capex Reshapes Wafer Fab Spending

Overview

Lam Research delivered the third consecutive record quarter in its fiscal 2026 cycle, reporting on April 22 that revenue for the three months ended March 29 reached $5.84 billion, up 9 percent sequentially and 24 percent year over year, according to the company’s earnings release distributed via PR Newswire. The Fremont, California-based maker of etch and deposition tools also raised its full-year 2026 forecast for wafer fabrication equipment (WFE) spending — the broad industry budget for chipmaking machines — from $135 billion to $140 billion, with management explicitly flagging upside risk.

The upgrade is the latest signal that AI-driven capital expenditure is rewriting the scale of semiconductor manufacturing, accelerating timelines that suppliers had already labelled “sold out for two years.”

What We Know

Top-line and margins. Revenue of $5.84 billion exceeded the high end of guidance and beat consensus estimates, according to the earnings release. Systems revenue contributed $3.73 billion and the Customer Support Business Group reached $2.11 billion — the first time that recurring services segment crossed the $2 billion mark in a single quarter. U.S. GAAP gross margin was 49.8 percent and operating margin was 35.0 percent; non-GAAP figures were 49.9 percent and 35.0 percent respectively. Diluted earnings per share hit a record $1.47 on a non-GAAP basis ($1.45 GAAP), again at or above the top of the guided range.

Capital returns. During the quarter Lam returned roughly $1.49 billion to shareholders, including $1.16 billion in share buybacks and $326 million in dividends, while paying down $751 million of debt principal, per the company’s release. Cash and equivalents stood at $4.77 billion at quarter-end, down from $6.20 billion three months earlier.

CEO commentary. Chief executive Tim Archer said in the release that “Lam delivered record revenue and EPS in the March quarter as AI-driven demand reshapes the semiconductor industry,” attributing the result to “strategic investments and execution velocity” enabling customers’ AI roadmaps, according to the earnings release.

Segment mix. On the conference call, management disclosed that systems revenue split 54 percent foundry/logic, 27 percent DRAM, 12 percent non-volatile memory (NAND), and 7 percent logic-and-other, according to the Q3 earnings call presentation published on Seeking Alpha. DRAM was at record levels, while NAND share rose modestly. By geography, China accounted for 34 percent of revenue, followed by Korea and Taiwan at 23 percent each, with the United States at 6 percent, per the earnings release.

WFE outlook raised. The headline forward-looking change was the lift in 2026 industry WFE spending. Lam now expects $140 billion for the calendar year, up from its prior $135 billion view, with a bias to the upside as customers move budgets higher across all device segments, according to the Q3 earnings call presentation. Management said its served available market should expand to “slightly more than the mid-30s percent” of total WFE in 2026, per the earnings call transcript.

Advanced packaging and memory drivers. Lam expects advanced packaging revenue to grow more than 50 percent during 2026, with plasma-enhanced chemical vapor deposition (PECVD) applications driving the increase, according to the earnings call transcript. On the memory side, the company said the bulk of an estimated $40 billion NAND conversion investment cycle has been pulled forward, with most spending now expected before the end of calendar 2027 rather than spread further into the decade. Management also flagged a DRAM 1c-node transition shifting from traditional silicon-nitride base dielectrics to advanced atomic layer deposition (ALD) approaches as a 20-percent-plus growth opportunity for Lam’s dielectric deposition footprint, per the same transcript.

Q4 FY2026 guidance. For the quarter ending June 28, 2026, Lam guided to revenue of $6.60 billion, plus or minus $400 million, gross margin of 50.5 percent (±1 percentage point), operating margin of 36.5 percent (±1 percentage point), and diluted EPS of $1.65 (±$0.15), according to the earnings release. Hitting the midpoint would mark a fourth consecutive quarterly record.

Context: A WFE Forecast That Keeps Climbing

The $140 billion figure is notable against the broader industry trajectory. Earlier this month The Machine Herald reported that the SEMI industry association had projected global fab equipment spending of $133 billion in 2026 — itself a record. Lam’s higher figure, drawn directly from customer order books, suggests the industry’s working estimates are still catching up with what AI infrastructure buildouts are actually consuming. ASML earlier in April raised its own 2026 revenue guidance to €36–40 billion, and Japan added fresh capital to Rapidus’s 2nm push, both consistent with the same demand pattern.

Lam’s customer-mix data point in the same direction. With 80 percent of systems revenue tied to foundry/logic and DRAM — the two segments most directly exposed to AI accelerator and high-bandwidth-memory production — the company’s results are increasingly read as a barometer for Nvidia, AMD, TSMC, Samsung, and SK Hynix capital plans, rather than a standalone equipment story.

What We Don’t Know

Lam did not break out export-control headwinds in detail. China remained Lam’s largest geography at 34 percent of revenue, but the company has historically declined to quantify how much potential business is foregone under U.S. restrictions on shipping advanced tools to Chinese fabs. Whether China’s share continues at this level — and on what mix of legacy versus advanced equipment — will shape both the upside case and the regulatory-risk case for the rest of the fiscal year.

The $140 billion WFE figure also embeds assumptions that Samsung, SK Hynix, and Micron will execute their HBM4 ramp plans on schedule, that the NAND conversion cycle will hold its accelerated pace, and that no major customer pushes orders out due to demand digestion. Each of those is a plausible swing factor for the back half of calendar 2026 that neither the press release nor the call resolved.

Finally, the published earnings release does not address the status of Lam’s Aether dry-resist platform for High-NA EUV — a technology the company highlighted in a March five-year collaboration with IBM. With TSMC having signalled at its April symposium that its A13 and A12 nodes will not require High-NA EUV, the demand profile for High-NA-adjacent processes through 2029 remains an open question for Lam’s longer-term roadmap.

Analysis

Lam’s quarter fits the picture that has emerged across the equipment-maker reporting cycle: revenue records, raised guidance, and order books that increasingly resemble multi-year backlogs more than quarterly bookings. The shift in narrative — from “AI is a tailwind” to “AI is the dominant variable in capex planning” — was explicit in CEO Tim Archer’s framing of the result.

For investors and analysts the more interesting datapoint may be the segmental mix. DRAM at 27 percent of systems revenue and a record level, combined with 50-percent-plus growth expectations in advanced packaging, indicate that the AI buildout is now consuming as much memory and packaging capacity as compute logic. That broadening — away from a leading-edge-foundry-only story — is what is pushing the WFE estimate higher even as headline foundry capex plans were already priced in.

The one caveat is geographic concentration. With China still over a third of revenue and U.S.-China export controls in active flux, a single regulatory move could re-rate the trajectory faster than any demand surprise. For now, however, the message from the March quarter is unambiguous: AI-driven semiconductor demand is not normalising, and the equipment makers’ books reflect it.