BOGIX vs. VSCIX

Last updated Jun 5, 2026

BOGIX (SGI Small Cap Core Fund) and VSCIX (Vanguard Small-Cap Index Fund Institutional Shares) are both Small Cap Blend Equities funds. Over the past 10 years, BOGIX returned 11.46%/yr vs 11.30%/yr for VSCIX. With a 0.95 correlation, they move nearly in lockstep. BOGIX charges 1.29%/yr vs 0.04%/yr for VSCIX.

Performance

BOGIX vs. VSCIX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in SGI Small Cap Core Fund (BOGIX) and Vanguard Small-Cap Index Fund Institutional Shares (VSCIX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, BOGIX achieves a 21.03% return, which is significantly higher than VSCIX's 14.16% return. Both investments have delivered pretty close results over the past 10 years, with BOGIX having a 11.46% annualized return and VSCIX not far behind at 11.30%.

BOGIX

• 1D: -0.92%
• 1M: -0.33%
• YTD: 21.03%
• 6M: 21.13%
• 1Y: 36.29%
• 3Y*: 16.56%
• 5Y*: 7.64%
• 10Y*: 11.46%

VSCIX

• 1D: -0.68%
• 1M: 2.34%
• YTD: 14.16%
• 6M: 13.55%
• 1Y: 28.91%
• 3Y*: 17.05%
• 5Y*: 7.12%
• 10Y*: 11.30%

*Multi-year figures are annualized to reflect compound growth (CAGR)

BOGIX vs. VSCIX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
BOGIX SGI Small Cap Core Fund	21.03%	8.99%	5.38%	21.14%	-13.23%	18.94%	21.61%	24.05%	-15.97%	17.24%
VSCIX Vanguard Small-Cap Index Fund Institutional Shares	14.16%	8.85%	12.96%	19.52%	-17.60%	17.74%	19.07%	27.40%	-9.33%	16.25%

Correlation

The correlation between BOGIX and VSCIX is 0.91, indicating a strong positive relationship between their price movements. Combining them offers limited diversification - they tend to fall together during downturns.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.91
Correlation (3Y) Calculated over the trailing 3-year period	0.94
Correlation (5Y) Calculated over the trailing 5-year period	0.95
Correlation (10Y) Calculated over the trailing 10-year period	0.93
Correlation (All Time) Calculated using the full available price history since Oct 1, 1999	0.95

The correlation between BOGIX and VSCIX has been stable across timeframes, ranging from 0.91 to 0.95 - a consistent structural relationship.

Return for Risk

BOGIX vs. VSCIX — Risk / Return Rank

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.

BOGIX

BOGIX Risk / Return Rank: 60
BOGIX Sharpe Ratio Rank: 49
BOGIX Sortino Ratio Rank: 52
BOGIX Omega Ratio Rank: 45
BOGIX Calmar Ratio Rank: 86
BOGIX Martin Ratio Rank: 68

VSCIX

VSCIX Risk / Return Rank: 48
VSCIX Sharpe Ratio Rank: 38
VSCIX Sortino Ratio Rank: 37
VSCIX Omega Ratio Rank: 34
VSCIX Calmar Ratio Rank: 70
VSCIX Martin Ratio Rank: 60

The rank (0–100) shows how this investment's returns compare to the risk taken. Higher = better. Based on the past 12 months of data, combining Sharpe, Sortino, and other metrics used by quantitative funds and institutional investors.

BOGIX vs. VSCIX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for SGI Small Cap Core Fund (BOGIX) and Vanguard Small-Cap Index Fund Institutional Shares (VSCIX). 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.

	BOGIX	VSCIX	Difference
Sharpe ratio: Return per unit of total volatility	2.04	1.78	+0.26
Sortino ratio: Return per unit of downside risk	2.98	2.55	+0.43
Omega ratio: Gain probability vs. loss probability	1.35	1.31	+0.05
Calmar ratio: Return relative to maximum drawdown	4.11	3.22	+0.88
Martin ratio: Return relative to average drawdown	12.96	11.90	+1.06
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

BOGIX vs. VSCIX - Sharpe Ratio Comparison

The current BOGIX Sharpe Ratio is 2.04, which is comparable to the VSCIX Sharpe Ratio of 1.78. The chart below compares the historical Sharpe Ratios of BOGIX and VSCIX, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Sharpe Ratios by Period

	BOGIX	VSCIX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	2.04	1.78	+0.26
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.26	0.35	-0.08
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.43	0.53	-0.09
Sharpe Ratio (All Time) Calculated using the full available price history	0.39	0.41	-0.02

Drawdowns

BOGIX vs. VSCIX - Drawdown Comparison

The maximum BOGIX drawdown since its inception was -68.37%, which is greater than VSCIX's maximum drawdown of -59.66%. Use the drawdown chart below to compare losses from any high point for BOGIX and VSCIX.

Drawdown Indicators

	BOGIX	VSCIX	Difference
Max Drawdown Largest peak-to-trough decline	-68.37%	-59.66%	-8.71%
Max Drawdown (1Y) Largest decline over 1 year	-8.72%	-8.97%	+0.25%
Max Drawdown (3Y) Largest decline over 3 years	-25.08%	-25.25%	+0.17%
Max Drawdown (5Y) Largest decline over 5 years	-40.26%	-28.13%	-12.13%
Max Drawdown (10Y) Largest decline over 10 years	-46.66%	-41.81%	-4.85%
Current Drawdown Current decline from peak	-1.32%	-0.68%	-0.64%
Average Drawdown Average peak-to-trough decline	-14.27%	-10.12%	-4.15%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.76%	2.43%	+0.33%

Volatility

BOGIX vs. VSCIX - Volatility Comparison

SGI Small Cap Core Fund (BOGIX) has a higher volatility of 5.45% compared to Vanguard Small-Cap Index Fund Institutional Shares (VSCIX) at 4.43%. This indicates that BOGIX's price experiences larger fluctuations and is considered to be riskier than VSCIX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	BOGIX	VSCIX	Difference
Volatility (1M) Calculated over the trailing 1-month period	5.45%	4.43%	+1.02%
Volatility (6M) Calculated over the trailing 6-month period	12.18%	11.72%	+0.46%
Volatility (1Y) Calculated over the trailing 1-year period	17.61%	16.29%	+1.32%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	29.03%	20.72%	+8.31%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	26.50%	21.57%	+4.93%

BOGIX vs. VSCIX - Expense Ratio Comparison

BOGIX has a 1.29% expense ratio, which is higher than VSCIX's 0.04% expense ratio.

Dividends

BOGIX vs. VSCIX - Dividend Comparison

BOGIX's dividend yield for the trailing twelve months is around 8.99%, more than VSCIX's 1.20% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
BOGIX SGI Small Cap Core Fund	8.99%	10.88%	2.17%	0.00%	0.63%	35.13%	5.23%	0.30%	16.52%	10.69%	0.00%	16.50%
VSCIX Vanguard Small-Cap Index Fund Institutional Shares	1.20%	1.34%	1.31%	1.55%	1.55%	1.25%	1.15%	1.40%	1.68%	1.36%	1.50%	1.49%

Frequently Asked Questions

Can I hold both BOGIX and VSCIX in my portfolio?

With a correlation of 0.91, BOGIX and VSCIX move almost identically. Holding both adds very little diversification - you're essentially doubling your position in the same market segment. Choosing one is usually more capital-efficient.

Which is riskier, BOGIX or VSCIX?

BOGIX has higher volatility (5.45%) compared to VSCIX (4.43%). In terms of maximum drawdown, BOGIX dropped -68.37% vs VSCIX's -59.66%.

Which has better risk-adjusted returns?

BOGIX currently has the higher Sharpe Ratio (2.04 vs 1.78), meaning it's delivered slightly more return per unit of risk over the trailing 12 months. However, this ranking shifts over time - use the Risk/Return Score above for a more comprehensive view that combines Sharpe, Sortino, and other measures used by quantitative funds.