BOGIX vs. TISBX

Last updated Jun 23, 2026

BOGIX (SGI Small Cap Core Fund) and TISBX (TIAA-CREF Small-Cap Blend Index Fund) are both Small Cap Blend Equities funds. Over the past 10 years, BOGIX returned 12.13%/yr vs 11.33%/yr for TISBX. Their correlation of 0.95 suggests significant overlap in exposure. BOGIX charges 1.29%/yr vs 0.05%/yr for TISBX.

Performance

BOGIX vs. TISBX - Performance Comparison

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

Returns By Period

In the year-to-date period, BOGIX achieves a 26.86% return, which is significantly higher than TISBX's 20.70% return. Over the past 10 years, BOGIX has outperformed TISBX with an annualized return of 12.13%, while TISBX has yielded a comparatively lower 11.33% annualized return.

BOGIX

• 1D: 1.88%
• 1M: 5.25%
• YTD: 26.86%
• 6M: 24.05%
• 1Y: 43.34%
• 3Y*: 17.25%
• 5Y*: 9.06%
• 10Y*: 12.13%

TISBX

• 1D: 2.09%
• 1M: 3.97%
• YTD: 20.70%
• 6M: 17.17%
• 1Y: 42.96%
• 3Y*: 18.33%
• 5Y*: 7.41%
• 10Y*: 11.33%

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

BOGIX vs. TISBX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
BOGIX SGI Small Cap Core Fund	26.86%	8.99%	5.38%	21.14%	-13.23%	18.94%	21.61%	24.05%	-15.97%	17.24%
TISBX TIAA-CREF Small-Cap Blend Index Fund	20.70%	12.72%	11.60%	17.07%	-20.31%	14.85%	20.14%	25.61%	-10.99%	13.14%

Correlation

The correlation between BOGIX and TISBX 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	0.94
Correlation (All Time) Calculated using the full available price history since Sep 30, 2002	0.95

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

Return for Risk

BOGIX vs. TISBX — Risk / Return Rank

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

BOGIX

BOGIX Risk / Return Rank: 81
BOGIX Sharpe Ratio Rank: 80
BOGIX Sortino Ratio Rank: 79
BOGIX Omega Ratio Rank: 67
BOGIX Calmar Ratio Rank: 94
BOGIX Martin Ratio Rank: 88

TISBX

TISBX Risk / Return Rank: 69
TISBX Sharpe Ratio Rank: 66
TISBX Sortino Ratio Rank: 61
TISBX Omega Ratio Rank: 50
TISBX Calmar Ratio Rank: 86
TISBX Martin Ratio Rank: 80

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. TISBX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for SGI Small Cap Core Fund (BOGIX) and TIAA-CREF Small-Cap Blend Index Fund (TISBX). 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.

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.

	BOGIX	TISBX	Difference
Sharpe ratio: Return per unit of total volatility	2.42	2.19	+0.23
Sortino ratio: Return per unit of downside risk	3.46	2.99	+0.48
Omega ratio: Gain probability vs. loss probability	1.41	1.36	+0.06
Calmar ratio: Return relative to maximum drawdown	4.96	3.94	+1.02
Martin ratio: Return relative to average drawdown	15.73	13.90	+1.83

BOGIX vs. TISBX - Sharpe Ratio Comparison

The current BOGIX Sharpe Ratio is 2.42, which is comparable to the TISBX Sharpe Ratio of 2.19. The chart below compares the historical Sharpe Ratios of BOGIX and TISBX, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Drawdowns

BOGIX vs. TISBX - Drawdown Comparison

The maximum BOGIX drawdown since its inception was -68.37%, which is greater than TISBX's maximum drawdown of -56.50%. Use the drawdown chart below to compare losses from any high point for BOGIX and TISBX.

Drawdown Indicators

	BOGIX	TISBX	Difference
Max Drawdown Largest peak-to-trough decline	-68.37%	-56.50%	-11.87%
Max Drawdown (1Y) Largest decline over 1 year	-8.72%	-10.95%	+2.23%
Max Drawdown (3Y) Largest decline over 3 years	-25.08%	-27.44%	+2.36%
Max Drawdown (5Y) Largest decline over 5 years	-40.26%	-31.89%	-8.37%
Max Drawdown (10Y) Largest decline over 10 years	-46.66%	-41.69%	-4.97%
Current Drawdown Current decline from peak	0.00%	0.00%	0.00%
Average Drawdown Average peak-to-trough decline	-14.24%	-9.67%	-4.57%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.75%	3.09%	-0.34%

Volatility

BOGIX vs. TISBX - Volatility Comparison

The current volatility for SGI Small Cap Core Fund (BOGIX) is 5.65%, while TIAA-CREF Small-Cap Blend Index Fund (TISBX) has a volatility of 6.74%. This indicates that BOGIX experiences smaller price fluctuations and is considered to be less risky than TISBX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	BOGIX	TISBX	Difference
Volatility (1M) Calculated over the trailing 1-month period	5.65%	6.74%	-1.09%
Volatility (6M) Calculated over the trailing 6-month period	12.64%	14.33%	-1.69%
Volatility (1Y) Calculated over the trailing 1-year period	17.88%	19.71%	-1.83%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	29.07%	22.64%	+6.43%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	26.51%	23.48%	+3.03%

BOGIX vs. TISBX - Expense Ratio Comparison

BOGIX has a 1.29% expense ratio, which is higher than TISBX's 0.05% expense ratio.

Dividends

BOGIX vs. TISBX - Dividend Comparison

BOGIX's dividend yield for the trailing twelve months is around 8.58%, more than TISBX's 3.42% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
BOGIX SGI Small Cap Core Fund	8.58%	10.88%	2.17%	0.00%	0.63%	35.13%	5.23%	0.30%	16.52%	10.69%	0.00%	16.50%
TISBX TIAA-CREF Small-Cap Blend Index Fund	3.42%	4.12%	6.82%	3.09%	1.97%	8.96%	2.65%	5.16%	9.29%	4.49%	4.03%	4.77%

Frequently Asked Questions

Can I hold both BOGIX and TISBX in my portfolio?

With a correlation of 0.91, BOGIX and TISBX 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 TISBX?

TISBX has higher volatility (6.74%) compared to BOGIX (5.65%). In terms of maximum drawdown, BOGIX dropped -68.37% vs TISBX's -56.50%.

Which has better risk-adjusted returns?

BOGIX currently has the higher Sharpe Ratio (2.42 vs 2.19), 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.