What Is SMH? VanEck Semiconductor ETF

SMH is the VanEck Semiconductor ETF, a passively-managed fund that tracks the MVIS US Listed Semiconductor 25 Index. Instead of holding the whole stock market, it holds just 25 of the largest US-listed semiconductor companies, weighted by market capitalization. That narrow, concentrated structure is the entire point: SMH is built to express a single idea, exposure to the chip industry, through one ticker, with the biggest chipmakers carrying the heaviest weights.

Semiconductors sit underneath almost everything in modern computing, from phones and data centers to cars and AI training clusters, so SMH has become one of the most direct ways to bet on that buildout. Because it owns the 25 largest names rather than the broad market, it behaves more like a focused sector wager than a diversified core holding, and it moves harder in both directions than an index fund like VOO.

Approximate weights as of early 2026; refresh quarterly from VanEck's fund page. Each ticker links to its individual stock guide in Walnut.

SMH is market-cap weighted, which means the largest semiconductor companies dominate the fund rather than sitting at roughly equal weights. NVIDIA is routinely the single biggest holding and can run to roughly a fifth of the entire fund on its own, with Taiwan Semiconductor close behind. Together those two names alone can account for a quarter to nearly a third of SMH. The roster also spans Broadcom, AMD, ASML, Applied Materials, Micron, Qualcomm, Texas Instruments, and Lam Research. See the top-10 table above for current weights.

That design has a real consequence: the top 10 holdings make up roughly 70% of the fund, so SMH lives and dies with a handful of mega-cap chip leaders. The mix blends chip designers, foundries, and the equipment makers that build fabrication tooling, and it reaches international leaders like TSMC and ASML through their US listings. It is comprehensive within semiconductors, but it is deliberately top-heavy, and the weighting methodology lets a winner like NVIDIA grow into an outsized share as its market cap climbs.

SMH and SOXX both cover US-listed semiconductors at the same 0.35% expense ratio, but they express the sector differently. SMH (VanEck) is the more top-heavy of the two: NVIDIA and TSMC combined can sit at a quarter to nearly a third of the fund, so you get maximum concentration in the industry's largest leaders. SOXX (iShares) caps individual weights more aggressively and spreads exposure across a slightly broader set of names, which dilutes any single stock's influence.

In short: SMH is the concentrated, leaders-led play, and SOXX is the somewhat more diversified version of the same sector. In the strongest stretches of the AI buildout, SMH's heavier NVIDIA weight has helped it lead; in pullbacks, that same concentration can cut the other way. If you want the most direct exposure to the biggest chipmakers, SMH leans that way. If you want semiconductor exposure with less single-name risk, SOXX leans broader. Owning both buys you very little, since they cover the same universe.

SMH's returns come almost entirely from price appreciation in its underlying holdings rather than income, since chip companies tend to reinvest cash flow into research and capacity rather than pay large dividends. The fund's yield is minimal as a result. Because it is concentrated in a single cyclical industry, SMH has historically swung far harder than a broad-market index, with the semiconductor cycle producing big peak-to-trough moves in both directions over the years.

One thing to understand before buying: SMH is a focused bet on a single sector and, increasingly, on a small group of AI-infrastructure leaders. When chip demand and AI spending are strong, that concentration can drive sharp outperformance. When the cycle turns or sentiment around a top holding like NVIDIA shifts, the same concentration amplifies the drawdown. It is best judged over a full semiconductor cycle and on a total-return basis, with the expectation that the ride is bumpier than a diversified core.

SMH tends to work best as a satellite position, a thematic sleeve layered around a diversified core like VOO or VTI rather than a core holding in its own right. Because it concentrates a single cyclical sector into 25 names, with a large share in just a few of them, it carries meaningfully more volatility than a broad index, and position sizing is where most of the risk decision actually lives. Many thematic investors keep a sector bet like this to a modest slice of the total portfolio rather than letting it dominate.

Walnut isn't an investment adviser and this isn't a recommendation, but two things are worth checking before you size a position. First, the concentration and volatility: SMH can move a lot, and a heavy weight in your overall portfolio inherits that swing. Second, overlap: if you already own NVIDIA directly, or hold a broad tech fund like QQQ, you may already have significant exposure to these exact names, and adding SMH can quietly stack that bet rather than diversify it. In conversation, Walnut's AI can show you how much SMH overlaps with what you already own and where it fits as a satellite around your core.

SMH trades on NYSE Arca during US market hours (9:30am to 4:00pm ET) and is available at every major broker, including Robinhood, Fidelity, Schwab, Vanguard, Public, M1, and Webull. Fractional shares are supported at most modern brokers, which is useful here because SMH's per-share price has climbed alongside its largest holdings, so whole shares can require a meaningful commitment.

Walnut doesn't replace your broker, it sits on top of it. Connect any major broker and Walnut adds an AI layer that helps you build baskets around SMH, track how your semiconductor sleeve is doing against your targets, and rebalance when your allocation drifts.

ETFs are passive bundles; thematic baskets in Walnut let you concentrate within them. If you hold SMH as a core position, these are the themes you might layer on as satellites.

There are three common ways to get SMH exposure. Buy shares (or fractional shares) of SMH directly at any major broker that lists it. Hold it as a core position and layer more concentrated ideas on top. Or build it into a thematic basket in Walnut, so SMH sits alongside other holdings that express the same thesis, with target weights you can rebalance toward. SMH trades like a stock during market hours, so you buy it the same way you would any listed share.

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Whether SMH is a good buy depends less on any single call and more on your time horizon and what you already hold: it tracks MVIS US Listed Semiconductor 25, so the real question is whether you want that exposure in your mix and at what weight. We walk through valuation, concentration, and what would have to be true for it to outperform from here in is SMH a buy?

SMH is a concentrated, leaders-led bet on semiconductors, dominated by NVDA and TSM, and far more volatile than a broad fund like VOO. It fits as a thematic satellite sized modestly around a diversified core, where SOXX is the somewhat broader, less top-heavy alternative on the same sector.

Whether SMH is worth buying today depends more on your time horizon and what you already hold than on any single call. We walk through valuation, concentration, and what would have to be true for it to outperform from here in is SMH a buy?

SMH yields ~0.4% as of early 2026, paid by passing through the dividends of its underlying holdings. For the payout schedule, history, and how the distributions are taxed, see SMH dividend: yield and schedule.

SMH and SOXX both track semiconductors, but SMH is more concentrated in its largest holding (NVIDIA-heavy) and a tighter roster, while SOXX spreads across more chip names. SMH amplifies the leaders; SOXX is the more evenly distributed bet. Read the full side-by-side in SMH vs SOXX.

New to funds like SMH? Start with what an ETF is, then how to buy an ETF, or browse the full guide to ETF investing.