VIOO — Vanguard S&P Small-Cap 600 Index Fund ETF Shares
US Small Cap Ranked #154 of 458 tracked ETFs · Issued by Vanguard
VIOO Price Performance — Growth of $10,000
Value of a $10,000 investment in VIOO over time, compared with SPY. Both lines are rebased to $10,000 on the first shared date. Based on total returns — prices are adjusted for dividends and splits, so this assumes distributions were reinvested. Hover or tap the chart for exact values.
VIOO Drawdown
The "underwater" chart: VIOO's decline from its highest prior value at each point in time. It shows how deep past losses ran and how long the fund took to recover to break-even.
What If You'd Invested in VIOO?
See what a lump sum in VIOO would have grown to, with the option to add a regular monthly contribution on top. Figures use total returns — dividends are assumed reinvested.
Past performance doesn't predict future results. Assumes contributions on the first trading day of each month, no trading costs or taxes, and reinvested distributions. History is limited to the range published in the site's daily return data.
Overview
Vanguard S&P Small-Cap 600 Index Fund ETF Shares is a US Small Cap ETF managed by Vanguard, one of the largest and most reputable issuers in the industry. With an overall rank of #154 out of 458 tracked ETFs, it falls in the middle of the pack. The fund has an expense ratio of 0.07%, which is relatively low, and a dividend yield of 1.12%, providing a modest income stream for investors. Its price of $136.58 and an AUM of $6.44B suggest that it has gained significant investor interest, positioning it as a substantial player in the small-cap market.
The performance of Vanguard S&P Small-Cap 600 Index Fund ETF Shares has been generally positive over the past year, with a strong 30.81% return. However, the 1M return of +1.74% and the 1W return of -2.08% indicate some short-term volatility. Over the longer term, the 3Y return of +55.86% shows a consistent upward trend, with the 6M return of +12.40% and the YTD return of +21.86% further supporting this. The 1D return of +0.67% suggests that the fund has been able to maintain positive momentum even on a daily basis, though the 1W return indicates a brief period of underperformance.
The fund's volatility label of 'Moderate' and a beta of 1.07 indicate that it is somewhat sensitive to market movements but not as volatile as the broader market. The Sharpe ratio of 1.51 suggests that the fund has been able to generate a good risk-adjusted return, meaning that it has provided a satisfactory return for the level of risk taken. The max drawdown of -27.93% indicates that the fund has experienced a significant decline in value, but it has recovered from such declines in the past. Overall, these figures imply that the fund has the potential to provide solid returns while maintaining a level of risk that is manageable for many investors.
AI-generated summary based on the data on this page.
VIOO Top Holdings
| # | Holding | % of Net Assets | Value |
|---|---|---|---|
| 1 | Sanmina Corp | 0.83% | $49M |
| 2 | Semtech Corp | 0.83% | $49M |
| 3 | Viavi Solutions Inc | 0.66% | $39M |
| 4 | Viasat Inc | 0.64% | $38M |
| 5 | Lumen Technologies Inc | 0.61% | $36M |
| 6 | FormFactor Inc | 0.57% | $33M |
| 7 | Element Solutions Inc | 0.57% | $33M |
| 8 | Argan Inc | 0.54% | $32M |
| 9 | Enphase Energy Inc | 0.53% | $31M |
| 10 | Molina Healthcare Inc | 0.53% | $31M |
Holdings as of 2026-05-31 per the fund's most recent SEC N-PORT-P filing. Top 10 holdings make up 6.3% of net assets — a rough gauge of concentration risk (the higher this figure, the more the fund's return depends on a handful of names). To see how VIOO's holdings overlap with other ETFs you own or are considering, check the Stock Overlap tool.
Which Funds Overlap With VIOO
Holding two funds that own the same companies adds cost and complexity without adding much diversification. These tracked ETFs share the most names with VIOO's top 10 — SLYG overlaps most, holding 4 of the same companies as VIOO's top 10 (2.6% of VIOO's assets).
| ETF | Name | Shared Companies | VIOO Weight | Examples |
|---|---|---|---|---|
| SLYG | State Street SPDR S&P 600 Small Cap Growth ETF | 4 | 2.6% | Sanmina Corp, Viavi Solutions Inc, FormFactor Inc… |
| IJR | iShares Core S&P Small-Cap ETF | 4 | 2.3% | Viavi Solutions Inc, Element Solutions Inc, FormFactor Inc… |
| SPSM | State Street SPDR Portfolio S&P 600 Small Cap ETF | 4 | 2.3% | Viavi Solutions Inc, Element Solutions Inc, FormFactor Inc… |
| AVUV | Avantis US Small Cap Value ETF | 1 | 0.6% | Viasat Inc |
| ICLN | iShares Global Clean Energy ETF | 1 | 0.5% | Enphase Energy Inc |
Compares the top 10 reported holdings of each fund, so it's a floor on true overlap — two S&P 500 trackers overlap ~100% even when only 10 names are listed. Use the Stock Overlap tool to search by individual company.
Market Backdrop
10-Year Treasury Yield: 4.69% (as of 2026-08-20) — The yield on 10-year US Treasury bonds — the standard "risk-free rate" benchmark used to contextualize this fund’s Sharpe ratio and returns.
CBOE Volatility Index (VIX): 16.01 (as of 2026-08-20) — A real-time gauge of expected S&P 500 volatility over the next 30 days — useful context for this fund’s own volatility label.
Federal Funds Rate: 3.63% (as of 2026-07-01) — The Federal Reserve’s target policy rate, which anchors short-term borrowing costs across the economy.
What VIOO's Fees Cost You
VIOO charges an expense ratio of 0.07% a year, deducted automatically from the fund's value. Small percentages compound into real money — adjust the figures below to see the impact on your own numbers.
Assumes a constant gross return and no additional contributions — a simplification, but it isolates exactly what the expense ratio costs. Try the full fee calculator to model contributions and compare any two funds.
VIOO Dividend Income Estimator
VIOO currently yields 1.12%. Enter an amount to see the income that implies, or set a monthly income target to see the investment it would take.
Based on the fund's current trailing yield, which varies with price and distributions — treat it as an estimate, not a guarantee. Yields are not adjusted for tax.
See it in a portfolio
VIOO isn't one of the twelve funds in the portfolio game, but IWM — Small Companies — sits in the same category and is. It is an equivalent, not a substitute: different holdings, different fee, different returns.
Free, no sign-up, virtual money only.
VIOO Liquidity, Domicile & Tax Treatment
Liquidity: Quoted bid/ask spread is 1.83% and average daily volume is 74K/day. Tighter spreads and higher volume mean lower round-trip trading costs; this is a live-market snapshot and can widen during volatile sessions. AUM of $6.44B provides ample scale, supporting tight spreads and issuer commitment to keep the fund open.
Domicile & tax treatment: VIOO is a US-domiciled, SEC-registered ('40 Act) exchange-traded fund. Dividends and capital gains distributions are reported to US investors on Form 1099-DIV, and the fund is not subject to the PFIC reporting or UCITS-specific rules that apply to Irish- or Luxembourg-domiciled funds. Non-US investors should note that US-domiciled ETFs are generally subject to 30% US withholding tax on dividends (unless reduced by treaty) and to US estate tax exposure on the position — Irish-domiciled UCITS ETFs tracking the same index often avoid both, which is why non-US residents frequently prefer the UCITS equivalent where one exists. This is general information, not tax advice — consult a tax professional for your situation.
VIOO Performance History
| Period | Return |
|---|---|
| 1-Day | +0.67% |
| 1-Week | -2.08% |
| 1-Month | +1.74% |
| 3-Month | +8.47% |
| 6-Month | +12.40% |
| YTD | +21.86% |
| 1-Year | +30.81% |
| 3-Year | +55.86% |
How VIOO Compares to Other US Small Cap ETFs
| Rank | Grade | Ticker | Name | 1-Year | Exp. Ratio | AUM |
|---|---|---|---|---|---|---|
| #77 | B |
IWM | iShares Russell 2000 ETF | +34.46% | 0.19% | $80.1B |
| #82 | B |
IWN | iShares Russell 2000 Value ETF | +37.43% | 0.24% | $14.3B |
| #84 | B |
AVUV | Avantis US Small Cap Value ETF | +35.17% | 0.25% | $30.2B |
| #86 | B |
IJR | iShares Core S&P Small-Cap ETF | +30.67% | 0.06% | $110B |
| #89 | B |
VBR | Vanguard Morningstar Small-Cap Value ETF | +25.14% | 0.05% | $68.3B |
| #90 | B |
SCHA | Schwab U.S. Small-Cap ETF | +34.01% | 0.03% | $22.2B |
| #91 | B |
VTWO | Vanguard Russell 2000 Index Fund ETF Shares | +34.67% | 0.06% | $17.5B |
| #99 | B |
VB | Vanguard Morningstar Small-Cap ETF | +26.08% | 0.03% | $183B |
| #116 | B |
SPSM | State Street SPDR Portfolio S&P 600 Small Cap ETF | +30.73% | 0.03% | $17.0B |
| #141 | B |
DFAT | Dimensional U.S. Targeted Value ETF | +28.85% | 0.28% | $14.5B |
| #144 | B |
DFSV | Dimensional US Small Cap Value ETF | +32.31% | 0.3% | $8.21B |
| #146 | B |
IJS | iShares S&P Small-Cap 600 Value ETF | +33.20% | 0.18% | $8.16B |
| #153 | B |
SLYV | State Street SPDR S&P 600 Small Cap Value ETF | +33.27% | 0.15% | $4.92B |
| #154 | B |
VIOO | Vanguard S&P Small-Cap 600 Index Fund ETF Shares | +30.81% | 0.07% | $6.44B |
| #198 | C |
VBK | Vanguard Morningstar Small-Cap Growth ETF | +27.12% | 0.05% | $43.9B |
| #205 | B |
IJT | iShares S&P Small-Cap 600 Growth ETF | +28.00% | 0.18% | $8.21B |
| #209 | B |
SLYG | State Street SPDR S&P 600 Small Cap Growth ETF | +28.08% | 0.15% | $5.08B |
| #211 | C |
IWO | iShares Russell 2000 Growth ETF | +31.68% | 0.24% | $14.3B |