Silicon Motion Technology Corpo (SIMO) Stock Price & How to Invest

Last updated October 2026

Short answer

You can invest in Silicon Motion (SIMO) by buying shares or fractional shares of its Nasdaq-listed American Depositary Receipts at any major broker, through a semiconductor or emerging-markets ETF that holds it, or as one holding in a thematic basket. Silicon Motion is a fabless, Taiwan-based designer of NAND flash controllers, the small chips that manage the flash memory inside SSDs, smartphones, and data-center storage, and it is the world's leading merchant (non-captive) supplier of client SSD controllers. The single biggest thing to understand is that this is a cyclical, storage-linked semiconductor stock: revenue in the June 2026 quarter was ~$451 million, up ~127% year over year on AI-driven storage demand, and the ADR has more than doubled in 2026 (up ~128% year to date as of October 16, 2026) while also falling ~21% in the past month, so the shares carry both fast-growth optimism and the memory industry's boom-bust history.

SIMO stock price

As of 2026-10-21, Silicon Motion Technology Corpo (SIMO) last closed at $221.99, up 135.9% over the past year. Over the past 52 weeks it has traded between $80.16 and $336.90.

SIMO last close
$221.99
1 day
+3.88%
1 month
-17.47%
1 year
+135.91%
52-week range
$80.16 to $336.90
Last close
2026-10-21

Prices are daily closing prices from Yahoo Finance and may be delayed. For the live quote, check your broker or Silicon Motion Technology Corpo's investor relations page. Walnut is informational, not investment advice.

What does Silicon Motion Technology Corpo (SIMO) do?

Silicon Motion Technology Corporation is a fabless semiconductor company that designs NAND flash controllers, the chips that sit between a device and its flash memory to manage reads, writes, error correction, and endurance. Founded in 1995 and headquartered in Taiwan (incorporated in the Cayman Islands, with a US corporate presence), it sells controllers for client SSDs used in PCs and laptops, enterprise and data-center SSDs, embedded eMMC and UFS storage for smartphones and IoT devices, automotive storage under its Ferri brand, and removable flash cards. It is the world's leading merchant supplier of client SSD controllers, with an estimated market share above ~30% as of mid-2026. Because it designs rather than manufactures its chips, it relies on foundries like TSMC and sells into the memory ecosystem rather than making the memory itself.

The investment picture in October 2026 is still dominated by an unusually strong upcycle. First-quarter 2026 revenue was a record ~$342 million, up ~105% year over year, and the second quarter went further: ~$451 million in revenue (up ~127% year over year and ~32% sequentially, well above the ~15% to ~20% sequential growth management had guided) with GAAP net income of ~$136 million, double the prior quarter. Non-GAAP EPS of ~$2.43 beat the ~$2.11 consensus. Trailing twelve-month revenue is now ~$1.31 billion with a ~22% net margin. A central growth item is the MonTitan enterprise SSD controller, which is being designed in at five global tier-1 cloud service providers and which management expects to reach ~5% to ~10% of total revenue by the end of 2026. The stock reflects all of this: up ~128% in 2026 and ~131% over one year as of October 16, 2026, but ~23% below where it stood three months earlier and well under its ~$355 high. Against that, Silicon Motion remains a cyclical supplier to a volatile memory market, burned cash over the trailing year (free cash flow of roughly -$197 million as it funded working capital), is exposed to customer and geographic concentration, and carries Taiwan-China geopolitical risk that is outside its control. Third-quarter results are scheduled for October 28, 2026, with consensus near ~$529 million in revenue and ~$3.33 in EPS.

What's driving Silicon Motion Technology Corpo (SIMO)?

1. AI-driven storage demand

The buildout of AI infrastructure and higher storage density per device have lifted demand for the controllers Silicon Motion designs, driving revenue up ~105% year over year in Q1 2026 and ~127% in Q2 2026, to a record ~$451 million. As AI PCs, smartphones, and data-center servers ship with more and faster flash, each unit needs a controller, expanding the company's addressable market. Analysts expect the run to continue, with consensus calling for ~$1.87 billion of revenue in 2026 and ~$2.43 billion in 2027. The durability of this demand is the core bull-case question for the stock.

2. MonTitan enterprise SSD ramp

Silicon Motion's MonTitan enterprise-grade SSD controller is being tested and designed in at five global tier-1 cloud service providers, with commercial sales expected to ramp through the second half of 2026. Management expects MonTitan to reach ~5% to ~10% of total revenue by year-end 2026. Enterprise and data-center controllers carry higher value than client parts, so success here would push the business up the value chain toward the fast-growing AI storage market. The October 28 report is the next checkpoint on whether that ramp is on schedule.

3. Client-SSD leadership and embedded diversification

Silicon Motion is the leading merchant supplier of client SSD controllers with over ~30% share, giving it scale and design-win relationships across PC and NAND makers. It has also diversified into embedded eMMC and UFS controllers for smartphones and IoT (up ~140% to ~145% year over year in Q1 2026) and automotive storage under the Ferri brand (up over ~700% off a small base). Rising storage content per smartphone has become a recurring theme in coverage of the company this autumn. This breadth reduces reliance on any single product line.

4. Fabless model, margins and capital returns

As a fabless designer, Silicon Motion outsources manufacturing to foundries, keeping capital intensity low and letting it focus spend on controller R&D. Gross margin was ~47.2% in Q1 2026 and is ~48.9% on a trailing basis, with operating margin near ~22%, helped by a richer mix of higher-value controllers and operating leverage. On October 16, 2026 the company raised its annual dividend ~15%, to $2.30 per ADS from $2.00, paid in four ~$0.575 installments starting November 19, 2026. Sustained margin expansion depends on mix shift toward enterprise and embedded products and on disciplined pricing in a competitive market.

What are the risks to Silicon Motion Technology Corpo (SIMO)?

The central risk is memory-market cyclicality: NAND demand and pricing move in sharp boom-bust cycles, and Silicon Motion's revenue can fall as fast as it rose when the cycle turns, as the wide 52-week range (roughly ~$80 to ~$355) and the ~21% drop in the month to October 16, 2026 show. Customer and geographic concentration is significant, with a meaningful share of business tied to a limited set of large NAND makers and cloud customers, so losing a design win or a major customer can hit results hard. Taiwan-China geopolitical tension is a structural, unpredictable risk given the company's Taiwan base and China exposure, and any disruption to Taiwan's chip ecosystem would be severe. Rapid growth has consumed cash: operating cash flow and free cash flow were both negative over the trailing year, and the cash balance on Yahoo's latest figures is small relative to revenue, which matters if the cycle turns while inventory and receivables are elevated. The valuation has come down (~25x trailing and ~13x forward earnings, from ~61x trailing in July), but forward multiples assume earnings keep compounding, so any growth disappointment or margin slip could still compress it quickly. Competition from Phison, Marvell, and in-house controller efforts at the big NAND makers adds ongoing pricing and share pressure.

What is the Silicon Motion Technology Corpo (SIMO) forecast?

10 analysts publish price targets on SIMO, averaging $369.70 against a $211.30 price as of October 2026, or +75.0%. The published targets run from $325.00 to $450.00, a moderate spread, and the ratings split 11 buy, 1 hold, 0 sell. Over the last six months there have been 8 raises and 0 cuts among the published actions. A price target is what an analyst published on a date, not a prediction, and sell-side ratings skew positive across the whole market.

Read the full SIMO forecast and price target for the target table, the recent rating actions by firm, and how the consensus has shifted.

Is SIMO a buy or a sell?

We give no verdict on Silicon Motion Technology Corpo. Both cases are real, which is why the question is contested at all, so here is the strongest version of each.

The case for buying. AI-driven storage demand. The buildout of AI infrastructure and higher storage density per device have lifted demand for the controllers Silicon Motion designs, driving revenue up ~105% year over year in Q1 2026 and ~127% in Q2 2026, to a record ~$451 million. The most optimistic published target, $450.00, assumes this works close to its best case.

The case against. The central risk is memory-market cyclicality: NAND demand and pricing move in sharp boom-bust cycles, and Silicon Motion's revenue can fall as fast as it rose when the cycle turns, as the wide 52-week range (roughly ~$80 to ~$355) and the ~21% drop in the month to October 16, 2026 show. The most pessimistic target, $325.00, is roughly what SIMO is worth if this bites instead.

Read the full bull and bear case on SIMO, including what would have to change to break either one. Walnut is not an investment adviser.

Has Silicon Motion Technology Corpo (SIMO) split its stock?

No. Silicon Motion Technology Corpo (SIMO) has not split its stock in the last 10 years. That is a statement about the window we check rather than about the company’s entire history, so an older split is possible. It also matters less than it once did: fractional shares mean a high price per share no longer keeps smaller investors out, which removed most of the practical reason to split.

How is Silicon Motion Technology Corpo (SIMO) valued? (approximate, October 2026)

A simple financial snapshot. These are approximations and refresh quarterly; for current figures see Silicon Motion Technology Corpo's investor relations page or your broker.

  • Revenue (TTM): ~$1.31 billion (Q2 2026 was a record ~$451 million, up ~127% year over year and ~32% sequentially)
  • Net income: ~$136 million GAAP in Q2 2026; ~$290 million TTM (~22% net margin)
  • EPS: Q2 2026 non-GAAP ~$2.43 vs ~$2.11 expected; TTM diluted EPS ~$8.55
  • Margins (TTM): ~48.9% gross, ~22.4% operating
  • Market cap: ~$7.2 billion (ADR ~$214 on October 16, 2026)
  • Valuation multiples: ~25x trailing P/E, ~13x forward P/E, ~5.5x price-to-sales, ~6.9x price-to-book
  • Dividend: Raised to $2.30 per ADS a year (~$0.575 quarterly) from $2.00; ~0.9% yield on the old rate
  • Next earnings: October 28, 2026; consensus ~$529 million revenue and ~$3.33 EPS

Figures are approximate and tied to the asOf date; verify live numbers before acting. The trailing P/E has fallen from ~61x in July to ~25x as two strong quarters rolled into the trailing figure and the ADR pulled back ~23% over three months, and the forward P/E of ~13x rests on consensus 2027 EPS of ~$15.87. For a cyclical memory-linked supplier, multiples can mislead: they can look expensive at a cyclical trough and cheap at a peak, so where NAND demand sits in its cycle matters as much as the P/E. Analyst sentiment remains positive (a Strong Buy average across ~10 analysts with a mean target near ~$370), but that is a view on the storage upcycle continuing.

Who competes with Silicon Motion Technology Corpo (SIMO)?

Merchant NAND controller specialists

Phison Electronics and Marvell Technology are Silicon Motion's most direct merchant rivals, along with smaller players like ASMedia and YEESTOR. Phison overlaps heavily in client SSD and embedded controllers, while Marvell is a stronger competitor in high-end enterprise and data-center controllers where MonTitan is aimed. The top handful of players together supply a large majority of the merchant controller market, so share shifts among them directly affect Silicon Motion.

Captive and integrated memory makers

Large NAND manufacturers such as Samsung, SK Hynix, Kioxia, and Micron design many controllers in-house for their own SSDs and mobile storage, which both competes with merchant suppliers and limits Silicon Motion's addressable market to the customers who buy controllers rather than build them. These same firms are also Silicon Motion's ecosystem partners and customers, making the relationship part rivalry and part dependence.

Broader storage and semiconductor exposure

For investors seeking the storage theme without single-controller-designer risk, memory makers (Micron, SK Hynix), storage-system firms, and broad semiconductor ETFs offer more diversified, less concentrated ways to invest in flash demand. They dilute how much any Silicon Motion move affects a portfolio but also spread the memory-cycle risk across many names.

What stocks are similar to Silicon Motion Technology Corpo (SIMO)?

Other names that sit close to SIMO: same theme, named as a direct competitor, or held beside it in the same funds. Each entry says which. Worth a look if you are thinking about diversification within a thesis rather than concentration on one ticker.

How to invest in Silicon Motion Technology Corpo (SIMO)

There are three common ways to get SIMO exposure. Buy shares (or fractional shares) directly at any major broker. Hold an ETF that includes it, which spreads the position across many companies. Or build it into a focused thematic portfolio, so SIMO sits alongside other stocks that express the same thesis.

Walnut takes the portfolio route. Describe a thesis where SIMO fits (for example “AI infrastructure” or “dividend-growth large-caps”) and the AI proposes 5 to 6 constituents with target weights. You review the plan and fund it through your own broker when you're ready.

New to this? Start with how to invest in stocks, see how to analyze a stock with AI, or compare the best AI stock analyzers.

The bottom line on Silicon Motion Technology Corpo (SIMO)

Silicon Motion is a profitable, market-leading NAND controller specialist riding an AI-storage upcycle, with record quarterly revenue, a new enterprise SSD product ramping and a dividend raised ~15% to $2.30 per ADS, so it offers focused exposure to the storage-chip theme while carrying the memory market's cyclicality, customer concentration, sharp share-price swings, and Taiwan-China geopolitical risk. Its next report is due October 28, 2026.

More on Silicon Motion Technology Corpo (SIMO)

Whether SIMO is worth buying today depends more on your time horizon and what you already hold than on any single call. We walk through valuation, what would have to go right, and the risks in is SIMO a buy or a sell?, and where the stock could go from here in the SIMO stock forecast.

For income investors, whether SIMO pays a dividend and how the payout looks is covered in does SIMO pay a dividend? And to weigh SIMO against a peer, read the full side-by-side comparisons: SIMO vs MRVL and SIMO vs SLAB.

Wondering how SIMO fits the portfolio you already own? Walnut is an AI investing app that connects your brokerage read-only and answers questions like that about your actual holdings: overlap, concentration, and how each position tracks the S&P 500. Compare the best AI portfolio analyzers or see the best AI investing apps in 2026.

Investing in Silicon Motion Technology Corpo with AI

Connect the broker you already use and ask Walnut's AI how SIMO fits what you actually hold: whether you own it already through a fund, what it would do to your concentration, and how it has tracked the S&P 500. Read-only by default, and you approve anything before it reaches your broker.

FAQ

Is SIMO a good stock to buy right now?

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That depends on your goals, time horizon, and risk tolerance, and this is not investment advice. The bull case is a market leader in NAND controllers riding an AI-storage upcycle, with revenue up ~127% year over year in Q2 2026, an EPS beat, a ~15% dividend raise and a new enterprise SSD product ramping, now at ~13x forward earnings. The bear case is a cyclical memory-linked stock that has already more than doubled in 2026, swung ~21% lower in the past month, burned cash while growing, and carries customer concentration and Taiwan-China geopolitical risk. Weigh both against your portfolio.

What does Silicon Motion actually do?

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Silicon Motion is a fabless semiconductor company that designs NAND flash controllers, the chips that manage the flash memory inside storage devices. Its controllers go into client SSDs for PCs, enterprise and data-center SSDs, embedded eMMC and UFS storage for smartphones and IoT, automotive storage, and flash cards. It designs the chips and outsources manufacturing to foundries, so it sells into the memory ecosystem rather than making the memory itself.

Why did Silicon Motion's revenue jump so much in 2026?

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First-quarter 2026 revenue rose ~105% year over year to a record ~$342 million, and second-quarter revenue reached ~$451 million, up ~127%, driven by AI-linked storage demand, a surge in embedded eMMC and UFS controllers (up ~140% to ~145% in Q1), and rapid growth in automotive storage. The prior-year quarters were much weaker, so part of the jump reflects recovery off a cyclical low. Analysts expect third-quarter revenue near ~$529 million when the company reports on October 28, 2026.

How did Silicon Motion do in its latest quarter?

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In the quarter ended June 30, 2026, revenue was ~$451 million, up ~127% year over year and ~32% from Q1, beating the ~15% to ~20% sequential growth management had guided. GAAP net income roughly doubled from the prior quarter to ~$136 million, and non-GAAP EPS of ~$2.43 topped the ~$2.11 consensus. The next report, for the September quarter, is due October 28, 2026, with consensus EPS near ~$3.33.

How has SIMO stock performed in 2026?

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As of October 16, 2026, the ADR closed near ~$214, up ~128% year to date and ~131% over one year. The path has been volatile: it reached a 52-week high of ~$355 and has since pulled back, falling ~21% over the past month and ~23% over three months, leaving a market value near ~$7.2 billion.

What is MonTitan and why does it matter?

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MonTitan is Silicon Motion's enterprise-grade SSD controller aimed at data centers and AI infrastructure. It is being designed in at five global tier-1 cloud service providers, with commercial sales expected to ramp through the second half of 2026, and management expects it to reach ~5% to ~10% of total revenue by year-end 2026. Enterprise controllers carry higher value than client parts, so MonTitan is a key part of the growth thesis.

Is SIMO an ADR, and what does that mean?

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Yes. Silicon Motion trades on the Nasdaq as an American Depositary Receipt (ADR), a US-listed security representing ordinary shares of the Cayman-incorporated, Taiwan-based company. For most US investors buying and selling the ADR works like any other stock at a US broker. ADRs can carry currency effects, foreign-tax considerations on dividends, and geopolitical exposure tied to the home market, which are worth understanding before investing.

Does Silicon Motion pay a dividend?

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Yes. On October 16, 2026 Silicon Motion raised its annual dividend ~15% to $2.30 per ADS, from $2.00, paid in four quarterly installments of ~$0.575; the first is payable November 19, 2026 to holders of record on November 5. At the old rate the yield was under ~1%, which is modest relative to the stock's price swings, so income is not the main reason most investors hold it. As a cyclical semiconductor company, its capital returns can vary with the memory cycle, so always check the latest declared dividend and yield before assuming any payout.

Who are Silicon Motion's main competitors?

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Its most direct merchant rivals are Phison Electronics and Marvell Technology, with smaller players like ASMedia and YEESTOR, and Marvell is a particular competitor in high-end enterprise controllers. Large NAND makers such as Samsung, SK Hynix, Kioxia, and Micron also design many controllers in-house, which both competes with Silicon Motion and limits its addressable market. That mix of merchant rivals and captive designers shapes pricing and share.

What are the main risks of investing in SIMO?

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The central risk is memory-market cyclicality: NAND demand and pricing swing sharply, and revenue can fall as fast as it rose, as the wide 52-week range (~$80 to ~$355) shows. Customer and geographic concentration means a lost design win or major customer can hurt results, and Taiwan-China geopolitical tension is a structural, unpredictable risk given the company's base. Fast growth has also consumed cash, with negative free cash flow over the trailing year. The forward multiple of ~13x assumes earnings keep growing, and competition from Phison, Marvell, and captive designers adds ongoing pressure.

Walnut is informational, not investment advice. Financial figures on this page are approximations; always verify current numbers with Silicon Motion Technology Corpo's investor relations page or your broker before making investment decisions.