- ISIN
- US9220401007
- CUSIP
- 922040100
- Issuer
- Vanguard
- Inception Date
- Jul 31, 1990
- Region
- North America (U.S.)
- Category
- S&P 500, Large Cap Blend Equities
- Min. Investment
- $5,000,000
- Index Tracked
- S&P 500 Index
- Distribution Policy
- Distributing
- Asset Class
- Equity
- Asset Class Size
- Large-Cap
- Asset Class Style
- Blend
- Assets Under Management
- $342B
Share Price Chart
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Performance
VINIX Performance Chart
Vanguard Institutional Index Fund Institutional Shares (VINIX) is up 8.6% since the beginning of the year. VINIX is currently trading at $593 per share. Investors who bought $1,000 worth of VINIX shares 5 years ago would now be looking at an investment worth $1,880.
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Returns By Period
Vanguard Institutional Index Fund Institutional Shares (VINIX) has returned 8.58% so far this year and 23.77% over the past 12 months. Looking at the last ten years, VINIX has achieved an annualized return of 15.50%, outperforming the S&P 500 Index benchmark, which averaged 13.61% per year.
Vanguard Institutional Index Fund Institutional Shares
- 1D
- 1.75%
- 1M
- -0.55%
- YTD
- 8.58%
- 6M
- 8.93%
- 1Y
- 23.77%
- 3Y*
- 21.46%
- 5Y*
- 13.46%
- 10Y*
- 15.50%
Benchmark (S&P 500 Index)
- 1D
- 0.50%
- 1M
- -0.17%
- YTD
- 8.56%
- 6M
- 8.85%
- 1Y
- 22.93%
- 3Y*
- 19.37%
- 5Y*
- 11.84%
- 10Y*
- 13.61%
VINIX Monthly Returns History
Based on dividend-adjusted daily data since Jul 31, 1990, VINIX's average daily return is +0.05%, while the average monthly return is +0.96%. At this rate, an investment would double in approximately 6.0 years.
Historically, 66% of months were positive and 34% were negative. The best month was Apr 2020 with a return of +12.8%, while the worst month was Oct 2008 at -16.8%. The longest winning streak lasted 15 consecutive months, and the longest losing streak was 5 months.
On a daily basis, VINIX closed higher 54% of trading days. The best single day was Oct 13, 2008 with a return of +11.6%, while the worst single day was Mar 16, 2020 at -12.0%.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Total | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 1.45% | -0.76% | -4.99% | 10.49% | 5.26% | -2.40% | 8.58% | ||||||
| 2025 | 2.78% | -1.31% | -5.64% | -0.68% | 6.29% | 5.09% | 2.24% | 2.02% | 3.65% | 2.34% | 0.24% | 0.06% | 17.85% |
| 2024 | 1.68% | 5.34% | 3.21% | -4.09% | 4.96% | 3.58% | 1.21% | 2.42% | 2.13% | -0.91% | 5.87% | -1.37% | 26.28% |
| 2023 | 6.28% | -2.44% | 3.27% | 1.56% | 0.43% | 6.60% | 3.21% | -1.59% | -4.77% | -2.11% | 9.13% | 4.54% | 25.77% |
| 2022 | -5.18% | -3.00% | 3.73% | -8.72% | 0.18% | -8.26% | 9.22% | -4.08% | -9.22% | 8.09% | 5.59% | -5.78% | -18.15% |
| 2021 | -1.01% | 2.76% | 4.37% | 5.33% | 0.69% | 2.33% | 2.37% | 3.04% | -4.65% | 7.00% | -0.70% | 4.48% | 28.67% |
Benchmark Metrics
Vanguard Institutional Index Fund Institutional Shares has an annualized alpha of 1.99%, beta of 1.00, and R2 of 1.00 versus S&P 500 Index. Calculated based on daily prices since July 31, 1990.
- This fund captured 106.09% of S&P 500 Index gains but only 96.32% of its losses - a favorable profile for investors.
- With beta of 1.00 and R2 of 1.00, this fund moves broadly in line with S&P 500 Index - much of its variation is explained by market exposure rather than independent behavior.
- Alpha
- 1.99%
- Beta
- 1.00
- R²
- 1.00
- Upside Capture
- 106.09%
- Downside Capture
- 96.32%
Expense Ratio
VINIX has an expense ratio of 0.04%, which is considered low.
Return for Risk
Risk / Return Rank
VINIX ranks 65 for risk / return — better than 65% of mutual funds on our site. You're getting solid returns for the risk taken. A good sign, especially for investors who want growth without excessive volatility.
Return / Risk — by metrics
The table below present risk-adjusted performance metrics for Vanguard Institutional Index Fund Institutional Shares (VINIX) and compare them to S&P 500 Index.
Values are calculated on a 1-year rolling basis and updated daily. Risk-adjusted metrics are more stable over longer periods — use the period switch above to explore them.
| VINIX | Benchmark | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | +0.11 | ||
| Sortino ratioReturn per unit of downside risk | +0.14 | ||
| Omega ratioGain probability vs. loss probability | 1.36 | 1.34 | +0.02 |
| Calmar ratioReturn relative to maximum drawdown | 2.74 | 2.53 | +0.21 |
| Martin ratioReturn relative to average drawdown | 12.44 | 11.37 | +1.07 |
Dividends
Dividend History
Vanguard Institutional Index Fund Institutional Shares provided a 2.46% dividend yield over the last twelve months, with an annual payout of $14.62 per share.
| Period | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dividend | $14.62 | $11.58 | $17.45 | $10.42 | $10.86 | $19.36 | $10.14 | $8.27 | $5.53 | $4.44 | $4.81 | $4.57 |
Dividend yield | 2.46% | 2.10% | 3.64% | 2.65% | 3.38% | 4.77% | 3.06% | 2.85% | 2.43% | 1.82% | 2.36% | 2.45% |
Monthly Dividends
The table displays the monthly dividend distributions for Vanguard Institutional Index Fund Institutional Shares. The dividends shown in the table have been adjusted to account for any splits that may have occurred.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Total | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | $0.00 | $0.00 | $5.48 | $0.00 | $0.00 | $0.00 | $5.48 | ||||||
| 2025 | $0.00 | $0.00 | $2.44 | $0.00 | $0.00 | $1.53 | $0.00 | $0.00 | $1.52 | $0.00 | $0.00 | $6.09 | $11.58 |
| 2024 | $0.00 | $0.00 | $2.60 | $0.00 | $0.00 | $1.60 | $0.00 | $0.00 | $1.48 | $0.00 | $0.00 | $11.76 | $17.45 |
| 2023 | $0.00 | $0.00 | $1.38 | $0.00 | $0.00 | $1.44 | $0.00 | $0.00 | $1.35 | $0.00 | $0.00 | $6.25 | $10.42 |
| 2022 | $0.00 | $0.00 | $3.32 | $0.00 | $0.00 | $1.32 | $0.00 | $0.00 | $1.40 | $0.00 | $0.00 | $4.81 | $10.86 |
| 2021 | $0.00 | $0.00 | $4.84 | $0.00 | $0.00 | $1.23 | $0.00 | $0.00 | $1.27 | $0.00 | $0.00 | $12.03 | $19.36 |
Drawdowns
Drawdowns Chart
The Drawdowns chart displays portfolio losses from any high point along the way. Drawdowns are calculated considering price movements and all distributions paid, if any.
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Worst Drawdowns
The table below displays the maximum drawdowns of the Vanguard Institutional Index Fund Institutional Shares. A maximum drawdown is a measure of risk, indicating the largest reduction in portfolio value due to a series of losing trades.
The maximum drawdown for the Vanguard Institutional Index Fund Institutional Shares was 55.19%, occurring on Mar 9, 2009. Recovery took 769 trading sessions.
The current Vanguard Institutional Index Fund Institutional Shares drawdown is 2.79%.
Related event | Drawdown | Fall | Recovery | Underwater |
|---|---|---|---|---|
Financial crisis2007–2009 | -55.19%Mar 2009 | 1y 5mo | 3y 18d | 4y 5moOct 2007 - Mar 2012 |
Dot-com crash2000–2002 | -47.38%Oct 2002 | 2y 1mo | 4y 15d | 6y 1moSep 2000 - Oct 2006 |
COVID crash2020 | -33.79%Mar 2020 | 1mo 2d | 4mo 20d | 5mo 22dFeb 2020 - Aug 2020 |
Bear market2022 | -24.51%Oct 2022 | 9mo 11d | 1y 2mo | 1y 11moJan 2022 - Dec 2023 |
Rate-hike selloffLate 2018 | -19.37%Dec 2018 | 3mo 4d | 3mo 19d | 6mo 23dSep 2018 - Apr 2019 |
Drawdown Indicators
| VINIX | Benchmark | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -55.19% | -56.78% | +1.59% |
Max Drawdown (1Y)Largest decline over 1 year | -8.90% | -9.10% | +0.20% |
Max Drawdown (3Y)Largest decline over 3 years | -18.75% | -18.90% | +0.15% |
Max Drawdown (5Y)Largest decline over 5 years | -24.51% | -25.43% | +0.92% |
Max Drawdown (10Y)Largest decline over 10 years | -33.79% | -33.92% | +0.13% |
Current DrawdownCurrent decline from peak | -2.79% | -2.34% | -0.45% |
Average DrawdownAverage peak-to-trough decline | -8.52% | -10.72% | +2.20% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 1.95% | 2.02% | -0.07% |
Volatility
Volatility Chart
The chart below shows the rolling one-month volatility.
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