What Is VTI? Vanguard Total Stock Market ETF

VTI is the Vanguard Total Stock Market ETF, a single ticker that gives you ownership of roughly 4,000 US-listed stocks weighted by market capitalization. It tracks the CRSP US Total Market Index, which is designed to capture the entire investable US equity market: large-caps at the top, then mid-caps, then all the way down into the small-cap tail. At a 0.03% expense ratio, it is one of the cheapest equity funds in the world.

The simplest way to understand VTI is as VOO plus everything VOO leaves out. The top of the fund mirrors the S&P 500 because cap-weighting dominates, so the same mega-caps lead both. The difference is the thousands of mid- and small-cap names below the S&P 500 line that VTI adds and VOO does not. In one purchase you own essentially the whole US market.

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

Because VTI is cap-weighted, its top holdings look almost identical to the S&P 500's: Microsoft, Apple, NVIDIA, Amazon, Meta, both Alphabet share classes, Broadcom, Berkshire Hathaway, and Tesla. The top 10 account for roughly 30% of the fund, and the largest US companies dominate the weighting the same way they do in VOO. See the top-10 table above for current weights.

The other roughly 3,990 holdings make up the remaining 70%, with the very smallest constituents sitting at fractions of a basis point each. Of the total, large-caps are around 75 to 79% of the fund, mid-caps around 15 to 18%, and small-caps around 6 to 8%. That mid- and small-cap layer is the central reason to choose VTI over a pure S&P 500 fund: it is the part of the US market a large-cap index simply does not reach.

All three are Vanguard core ETFs, but they cover different slices. VOO (0.03%) holds only the S&P 500, roughly 500 large-caps. VTI (0.03%) holds the entire US investable universe, roughly 4,000 stocks across all caps, so it is VOO plus the mid- and small-cap tail. VT (Vanguard Total World Stock ETF, 0.07%) goes further still, holding around 9,000 stocks globally: US plus developed international plus emerging markets, weighted by global market cap.

In short: VOO is the large-cap-only core, VTI is the whole-US-market core, and VT is the whole-world core. Long-run returns between VOO and VTI have been close because the shared mega-caps drive most of the performance, though VTI carries slightly more volatility from its small-cap exposure. ITOT (iShares) covers nearly the same US universe as VTI at the same 0.03%, so the choice there comes down to which provider's ecosystem you prefer.

VTI's total return comes from price appreciation across its holdings plus a dividend that yields roughly 1.3%, paid quarterly. Because the fund is dominated by the same mega-caps as the S&P 500, its returns have tracked VOO closely over long stretches. The mid- and small-cap layer adds a modest source of divergence: it can lift returns when smaller companies lead and weigh on them when the market narrows to a handful of mega-caps.

One thing to understand before buying: VTI is a bet on the breadth of the US market rather than on any single segment of it. In years when mega-cap technology leads, VTI and VOO behave almost identically, since those names sit at the top of both. The total-market structure tends to matter most over full cycles, when the smaller names contribute, so VTI is best judged on long-run total return rather than any single year.

VTI is a common single-fund core for long-term passive investors because one purchase covers the whole US equity market at near-zero cost. It also pairs naturally as the US sleeve of a broader allocation, often sitting alongside an international fund and a bond fund in a simple three-fund structure. For investors who want US equity breadth without choosing between large, mid, and small caps, the total-market approach removes that decision entirely.

Where it falls short: VTI is US-only, so it gives you no international exposure, and its heavy large-cap weighting means it overlaps almost completely with VOO if you already hold one. Walnut isn't an investment adviser and this isn't a recommendation, but in conversation Walnut's AI can show you how much VTI overlaps with what you already own and where it fits as a core around your other holdings.

VTI trades on NYSE Arca during US market hours (9:30am to 4:00pm ET) and is available commission-free at every major broker, including Robinhood, Fidelity, Schwab, Vanguard, Public, M1, and Webull. Fractional shares are supported at most modern brokers, which also lets the quarterly dividends reinvest automatically as fractional shares (DRIP), useful for a long-term core position.

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 VTI, track how your holdings are doing against your targets, and rebalance when your allocation drifts.

There are three common ways to get VTI exposure. Buy shares (or fractional shares) of VTI 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 VTI sits alongside other holdings that express the same thesis, with target weights you can rebalance toward. VTI trades like a stock during market hours, so you buy it the same way you would any listed share.

New to buying funds? See how to buy an ETF, step by step.

Whether VTI is a good buy depends less on any single call and more on your time horizon and what you already hold: it tracks CRSP US Total Market, 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 VTI a buy?

VTI is essentially VOO plus the mid- and small-cap slice of the US market, at the same 0.03% fee. It works as a single-fund US equity core for investors who want total-market breadth without choosing between large, mid, and small caps, rather than as a sector or factor tilt.

Whether VTI 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 VTI a buy?

VTI yields ~1.3% 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 VTI dividend: yield and schedule.

VOO holds only the S&P 500's large caps, while VTI owns the entire US market including mid and small caps, at the same 0.03% fee. VTI is the more diversified single-fund core; VOO is the cleaner large-cap bet, and the two overlap heavily at the top. Read the full side-by-side in VOO vs VTI.

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