AVIGX vs. SSAFX

Last updated Jun 3, 2026

AVIGX (Avantis Core Fixed Income Fund) and SSAFX (State Street Aggregate Bond Index Portfolio) are both Intermediate Core Bond funds. Over the past 5 years, AVIGX returned 0.14%/yr vs 0.04%/yr for SSAFX. With a 0.95 correlation, they move nearly in lockstep. AVIGX charges 0.15%/yr vs 0.02%/yr for SSAFX.

Performance

AVIGX vs. SSAFX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Avantis Core Fixed Income Fund (AVIGX) and State Street Aggregate Bond Index Portfolio (SSAFX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, AVIGX achieves a 0.26% return, which is significantly lower than SSAFX's 0.37% return.

AVIGX

• 1D: -0.12%
• 1M: 0.12%
• YTD: 0.26%
• 6M: 0.51%
• 1Y: 5.62%
• 3Y*: 4.42%
• 5Y*: 0.14%
• 10Y*: —

SSAFX

• 1D: -0.09%
• 1M: 0.11%
• YTD: 0.37%
• 6M: 0.42%
• 1Y: 5.32%
• 3Y*: 3.88%
• 5Y*: 0.04%
• 10Y*: 27.82%

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

AVIGX vs. SSAFX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021
AVIGX Avantis Core Fixed Income Fund	0.26%	8.04%	2.07%	5.13%	-13.62%	0.99%
SSAFX State Street Aggregate Bond Index Portfolio	0.37%	6.81%	1.34%	5.61%	-13.30%	1.39%

Correlation

The correlation between AVIGX and SSAFX is 0.90, 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	0.90
Correlation (3Y) Calculated over the trailing 3-year period	0.94
Correlation (5Y) Calculated over the trailing 5-year period	0.95
Correlation (All Time) Calculated using the full available price history since Mar 10, 2021	0.95

The correlation between AVIGX and SSAFX has been stable across timeframes, ranging from 0.90 to 0.95 - a consistent structural relationship.

Return for Risk

AVIGX vs. SSAFX — Risk / Return Rank

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

AVIGX

AVIGX Risk / Return Rank: 22
AVIGX Sharpe Ratio Rank: 20
AVIGX Sortino Ratio Rank: 20
AVIGX Omega Ratio Rank: 19
AVIGX Calmar Ratio Rank: 28
AVIGX Martin Ratio Rank: 24

SSAFX

SSAFX Risk / Return Rank: 22
SSAFX Sharpe Ratio Rank: 21
SSAFX Sortino Ratio Rank: 22
SSAFX Omega Ratio Rank: 19
SSAFX Calmar Ratio Rank: 25
SSAFX Martin Ratio Rank: 22

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.

AVIGX vs. SSAFX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Avantis Core Fixed Income Fund (AVIGX) and State Street Aggregate Bond Index Portfolio (SSAFX). 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.

	AVIGX	SSAFX	Difference
Sharpe ratio Return per unit of total volatility	1.28	1.35	-0.06
Sortino ratio Return per unit of downside risk	1.92	2.02	-0.10
Omega ratio Gain probability vs. loss probability	1.23	1.24	-0.01
Calmar ratio Return relative to maximum drawdown	1.99	1.91	+0.08
Martin ratio Return relative to average drawdown	6.14	5.88	+0.26
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

AVIGX vs. SSAFX - Sharpe Ratio Comparison

The current AVIGX Sharpe Ratio is 1.28, which is comparable to the SSAFX Sharpe Ratio of 1.35. The chart below compares the historical Sharpe Ratios of AVIGX and SSAFX, 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

	AVIGX	SSAFX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.28	1.35	-0.06
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.02	0.01	+0.02
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	—	0.10	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.04	0.09	-0.05

Drawdowns

AVIGX vs. SSAFX - Drawdown Comparison

The maximum AVIGX drawdown since its inception was -19.39%, roughly equal to the maximum SSAFX drawdown of -18.74%. Use the drawdown chart below to compare losses from any high point for AVIGX and SSAFX.

Drawdown Indicators

	AVIGX	SSAFX	Difference
Max Drawdown Largest peak-to-trough decline	-19.39%	-18.74%	-0.65%
Max Drawdown (1Y) Largest decline over 1 year	-3.04%	-2.74%	-0.30%
Max Drawdown (3Y) Largest decline over 3 years	-6.28%	-6.09%	-0.19%
Max Drawdown (5Y) Largest decline over 5 years	-19.39%	-18.10%	-1.29%
Max Drawdown (10Y) Largest decline over 10 years	—	-18.74%	—
Current Drawdown Current decline from peak	-1.61%	-2.66%	+1.05%
Average Drawdown Average peak-to-trough decline	-8.34%	-4.41%	-3.93%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.98%	0.89%	+0.09%

Volatility

AVIGX vs. SSAFX - Volatility Comparison

Avantis Core Fixed Income Fund (AVIGX) has a higher volatility of 1.51% compared to State Street Aggregate Bond Index Portfolio (SSAFX) at 1.30%. This indicates that AVIGX's price experiences larger fluctuations and is considered to be riskier than SSAFX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	AVIGX	SSAFX	Difference
Volatility (1M) Calculated over the trailing 1-month period	1.51%	1.30%	+0.21%
Volatility (6M) Calculated over the trailing 6-month period	3.11%	2.66%	+0.45%
Volatility (1Y) Calculated over the trailing 1-year period	4.20%	3.75%	+0.45%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	6.19%	5.95%	+0.24%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	6.09%	277.51%	-271.42%

AVIGX vs. SSAFX - Expense Ratio Comparison

AVIGX has a 0.15% expense ratio, which is higher than SSAFX's 0.02% expense ratio. However, both funds are considered low-cost compared to the broader market, where average expense ratios usually range from 0.3% to 0.9%.

Dividends

AVIGX vs. SSAFX - Dividend Comparison

AVIGX's dividend yield for the trailing twelve months is around 4.42%, more than SSAFX's 4.17% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
AVIGX Avantis Core Fixed Income Fund	4.42%	4.45%	4.97%	2.92%	3.01%	0.79%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%
SSAFX State Street Aggregate Bond Index Portfolio	4.17%	3.70%	3.76%	3.16%	2.49%	1.90%	2.41%	2.88%	2.82%	2.42%	2.21%	3.21%

Frequently Asked Questions

Can I hold both AVIGX and SSAFX in my portfolio?

With a correlation of 0.90, AVIGX and SSAFX 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, AVIGX or SSAFX?

AVIGX has higher volatility (1.51%) compared to SSAFX (1.30%). In terms of maximum drawdown, AVIGX dropped -19.39% vs SSAFX's -18.74%.

Which has better risk-adjusted returns?

SSAFX currently has the higher Sharpe Ratio (1.35 vs 1.28), 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.