BUFGX vs. VIGIX
Compare and contrast key facts about Buffalo Growth Fund (BUFGX) and Vanguard Growth Index Fund Institutional Shares (VIGIX).
BUFGX is managed by Buffalo. It was launched on May 19, 1995. VIGIX is managed by Vanguard. It was launched on May 14, 1998.
Performance
BUFGX vs. VIGIX - Performance Comparison
Loading graphics...
BUFGX vs. VIGIX - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
BUFGX Buffalo Growth Fund | -15.63% | 13.95% | 25.13% | 42.67% | -31.19% | 21.52% | 28.29% | 31.89% | 0.69% | 22.76% |
VIGIX Vanguard Growth Index Fund Institutional Shares | -13.83% | 19.44% | 32.68% | 46.77% | -33.13% | 27.27% | 40.19% | 37.26% | -3.34% | 27.81% |
Returns By Period
In the year-to-date period, BUFGX achieves a -15.63% return, which is significantly lower than VIGIX's -13.83% return. Over the past 10 years, BUFGX has underperformed VIGIX with an annualized return of 11.43%, while VIGIX has yielded a comparatively higher 15.58% annualized return.
BUFGX
- 1D
- 0.25%
- 1M
- -8.36%
- YTD
- -15.63%
- 6M
- -13.92%
- 1Y
- 5.56%
- 3Y*
- 14.20%
- 5Y*
- 7.32%
- 10Y*
- 11.43%
VIGIX
- 1D
- -0.57%
- 1M
- -8.83%
- YTD
- -13.83%
- 6M
- -12.31%
- 1Y
- 13.73%
- 3Y*
- 19.57%
- 5Y*
- 10.94%
- 10Y*
- 15.58%
Compare stocks, funds, or ETFs
Search for stocks, ETFs, and funds for a quick comparison or use the comparison tool for more options.
BUFGX vs. VIGIX - Expense Ratio Comparison
BUFGX has a 0.92% expense ratio, which is higher than VIGIX's 0.04% expense ratio.
Return for Risk
BUFGX vs. VIGIX — Risk / Return Rank
BUFGX
VIGIX
BUFGX vs. VIGIX - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Buffalo Growth Fund (BUFGX) and Vanguard Growth Index Fund Institutional Shares (VIGIX). Risk-adjusted metrics are performance indicators that assess an investment's returns in relation to its risk, enabling a more accurate comparison of different investment options.
| BUFGX | VIGIX | Difference | |
|---|---|---|---|
Sharpe ratioReturn per unit of total volatility | 0.26 | 0.61 | -0.35 |
Sortino ratioReturn per unit of downside risk | 0.54 | 1.04 | -0.50 |
Omega ratioGain probability vs. loss probability | 1.07 | 1.15 | -0.07 |
Calmar ratioReturn relative to maximum drawdown | 0.16 | 0.66 | -0.50 |
Martin ratioReturn relative to average drawdown | 0.57 | 2.38 | -1.81 |
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month. | |||
Loading graphics...
Sharpe Ratios by Period
| BUFGX | VIGIX | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 0.26 | 0.61 | -0.35 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | 0.34 | 0.49 | -0.15 |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | 0.56 | 0.73 | -0.17 |
Sharpe Ratio (All Time)Calculated using the full available price history | 0.51 | 0.43 | +0.08 |
Correlation
The correlation between BUFGX and VIGIX is 0.94, which is considered to be high. That indicates a strong positive relationship between their price movements. Having highly-correlated positions in a portfolio may signal a lack of diversification, potentially leading to increased risk during market downturns.
Dividends
BUFGX vs. VIGIX - Dividend Comparison
BUFGX's dividend yield for the trailing twelve months is around 7.25%, more than VIGIX's 0.47% yield.
| TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
BUFGX Buffalo Growth Fund | 7.25% | 6.12% | 8.55% | 5.55% | 4.77% | 9.90% | 4.97% | 13.60% | 34.64% | 20.49% | 0.00% | 18.46% |
VIGIX Vanguard Growth Index Fund Institutional Shares | 0.47% | 0.41% | 0.47% | 0.58% | 0.70% | 0.48% | 0.66% | 0.95% | 1.32% | 1.15% | 1.40% | 1.31% |
Drawdowns
BUFGX vs. VIGIX - Drawdown Comparison
The maximum BUFGX drawdown since its inception was -50.17%, smaller than the maximum VIGIX drawdown of -56.95%. Use the drawdown chart below to compare losses from any high point for BUFGX and VIGIX.
Loading graphics...
Drawdown Indicators
| BUFGX | VIGIX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -50.17% | -56.95% | +6.78% |
Max Drawdown (1Y)Largest decline over 1 year | -17.63% | -16.51% | -1.12% |
Max Drawdown (5Y)Largest decline over 5 years | -35.68% | -35.62% | -0.06% |
Max Drawdown (10Y)Largest decline over 10 years | -35.68% | -35.62% | -0.06% |
Current DrawdownCurrent decline from peak | -17.42% | -16.51% | -0.91% |
Average DrawdownAverage peak-to-trough decline | -9.00% | -16.36% | +7.36% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 4.90% | 4.56% | +0.34% |
Volatility
BUFGX vs. VIGIX - Volatility Comparison
Buffalo Growth Fund (BUFGX) and Vanguard Growth Index Fund Institutional Shares (VIGIX) have volatilities of 5.36% and 5.52%, respectively, indicating that both stocks experience similar levels of price fluctuations. This suggests that the risk associated with both stocks, as measured by volatility, is nearly the same. The chart below showcases a comparison of their rolling one-month volatility.
Loading graphics...
Volatility by Period
| BUFGX | VIGIX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 5.36% | 5.52% | -0.16% |
Volatility (6M)Calculated over the trailing 6-month period | 11.38% | 12.10% | -0.72% |
Volatility (1Y)Calculated over the trailing 1-year period | 21.59% | 22.69% | -1.10% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 21.32% | 22.30% | -0.98% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 20.63% | 21.49% | -0.86% |