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At $388.92, Lam Research (LRCX) looks set up for roughly 51% of upside over the next three years under a conservative scenario. That is a move large enough to justify digging into where it comes from. Revenue compounding does the work, but the multiple takes a meaningful cut along the way. Here is the operational reality the math is built on:

Beyond the headline equipment sales, a massive services business is compounding quietly inside Lam Research. The Customer Support Business Group just delivered its first quarter with over $2 billion in revenue. This segment is growing rapidly, posting a significant increase of 25% from the prior year.

This recurring stream is why the upside case centers on revenue. It is fed by a massive installed base of more than 100,000 chambers already operating in customer fabs. As this base grows, so does the opportunity for high-margin upgrades and services.

LRCX

Sector

Information Technology

Industry

Semiconductor Materials & Equipment

P/E Ratio

72.5

P/E Ratio 3Y Avg

27.8

LTM* Revenue Growth

26.5%

3Y Avg Revenue Growth

7.5%

LTM* Net Margin

30.9%

3Y Peak Net Margin

30.9%

3Y Avg Net Margin

27.0%

*LTM: Last Twelve Months

Three projections drive the upside number. Revenue compounds at 22.6% annually over three years, intentionally below today's 26.5% pace, because the recent acceleration is unlikely to extrapolate cleanly over a 3-year horizon. Net margin eases from 30.9% to 29.8% as today's LTM gives back to the longer-run average. And the multiple has work to do that is not in the company's favor. LRCX's P/E is currently 72.5x, well above its 3-year average of 27.8x. The scenario trims it toward that average, to 61.6x, though it stays above it.

Put those three together, and earnings move from $6.7B to roughly $11.9B, a 77% jump. Apply the lower multiple to that base, and the stock lands near $585.47, only 51% above today. The multiple takes its cut before the earnings work reaches the share price.

A major technology transition in NAND storage could accelerate this growth beyond the current run-rate. Management now anticipates that a previously projected multi-year spending cycle will be pulled forward. This involves roughly $40 billion in conversion spending, with the majority now expected before the end of calendar year 2027.

Yet, a key indicator of forward demand is flashing a warning sign, suggesting the cycle may be turning. Customer down payments have fallen to their lowest level in nearly four years. While management attributes this to a customer mix shift, it remains a tangible note of caution on near-term capital commitments.

You are paying for steady compounding, not a re-rating and not a margin miracle. The bet is that revenue keeps moving at roughly the projected pace; if it doesn't, the math has nowhere else to turn. And the multiple is already above its 3-year average, so even if compounding shows up, you should not expect a multiple-expansion kicker. The scenario actually builds in some compression. And one cyclical asterisk: today's LTM numbers come off a peak rather than a sustainable rate. A revert toward the 3-year baseline would lower the earnings base before the rest of the math has a chance to play out.

One thing in your favor, regardless of which lever lands: LRCX has retired roughly 7.4% of its share count over three years. Per-share earnings rise faster than absolute earnings, a quiet tailwind on top of whatever the main scenario delivers.

The pull-forward of NAND conversion spending is a powerful catalyst, but low customer down payments signal potential cyclical turbulence ahead.

A careful 3-year case on a single name is still a concentrated bet, as historical volatility across past market crises shows. Investors who build analyses like this on individual positions often want the same framework running across a diversified book, partly for discipline, partly because even the cleanest single-stock thesis can break for reasons the math does not capture.

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