AUSF vs. FXAIX

Last updated Jun 4, 2026

AUSF (Global X Adaptive U.S. Factor ETF) and FXAIX (Fidelity 500 Index Fund) are both funds - AUSF is a Mid Cap Value Equities fund tracking the Adaptive Wealth Strategies U.S. Factor Index, while FXAIX is a S&P 500 fund tracking the S&P 500 Index. Both are passively managed. Over the past 5 years, AUSF returned 12.71%/yr vs 14.28%/yr for FXAIX. A 0.75 correlation means they provide meaningful diversification when combined. AUSF charges 0.27%/yr vs 0.02%/yr for FXAIX.

Performance

AUSF vs. FXAIX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Global X Adaptive U.S. Factor ETF (AUSF) and Fidelity 500 Index Fund (FXAIX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, AUSF achieves a 6.72% return, which is significantly lower than FXAIX's 11.71% return.

AUSF

• 1D: -0.43%
• 1M: 0.23%
• YTD: 6.72%
• 6M: 7.67%
• 1Y: 15.11%
• 3Y*: 20.14%
• 5Y*: 12.71%
• 10Y*: —

FXAIX

• 1D: 0.13%
• 1M: 5.80%
• YTD: 11.71%
• 6M: 11.74%
• 1Y: 28.99%
• 3Y*: 22.75%
• 5Y*: 14.28%
• 10Y*: 15.66%

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

AUSF vs. FXAIX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018
AUSF Global X Adaptive U.S. Factor ETF	6.72%	13.69%	16.05%	22.26%	-0.18%	27.48%	1.27%	24.06%	-10.79%
FXAIX Fidelity 500 Index Fund	11.71%	17.84%	25.01%	26.29%	-18.14%	28.71%	18.42%	31.48%	-12.90%

Correlation

The correlation between AUSF and FXAIX is 0.49, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.49
Correlation (3Y) Calculated over the trailing 3-year period	0.63
Correlation (5Y) Calculated over the trailing 5-year period	0.71
Correlation (All Time) Calculated using the full available price history since Aug 29, 2018	0.75

Over the past year, the correlation between AUSF and FXAIX has dropped to 0.49 - well below their long-term average of 0.75, suggesting their price drivers have been diverging.

Return for Risk

AUSF vs. FXAIX — Risk / Return Rank

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

AUSF

AUSF Risk / Return Rank: 44
AUSF Sharpe Ratio Rank: 42
AUSF Sortino Ratio Rank: 43
AUSF Omega Ratio Rank: 39
AUSF Calmar Ratio Rank: 52
AUSF Martin Ratio Rank: 45

FXAIX

FXAIX Risk / Return Rank: 73
FXAIX Sharpe Ratio Rank: 76
FXAIX Sortino Ratio Rank: 67
FXAIX Omega Ratio Rank: 67
FXAIX Calmar Ratio Rank: 74
FXAIX Martin Ratio Rank: 83

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.

AUSF vs. FXAIX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Global X Adaptive U.S. Factor ETF (AUSF) and Fidelity 500 Index Fund (FXAIX). 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.

	AUSF	FXAIX	Difference
Sharpe ratio: Return per unit of total volatility	1.50	2.52	-1.02
Sortino ratio: Return per unit of downside risk	2.18	3.42	-1.24
Omega ratio: Gain probability vs. loss probability	1.26	1.46	-0.20
Calmar ratio: Return relative to maximum drawdown	2.60	3.36	-0.76
Martin ratio: Return relative to average drawdown	7.54	15.70	-8.15
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

AUSF vs. FXAIX - Sharpe Ratio Comparison

The current AUSF Sharpe Ratio is 1.50, which is lower than the FXAIX Sharpe Ratio of 2.52. The chart below compares the historical Sharpe Ratios of AUSF and FXAIX, 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

	AUSF	FXAIX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.50	2.52	-1.02
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.94	0.85	+0.09
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	—	0.87	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.65	0.82	-0.18

Drawdowns

AUSF vs. FXAIX - Drawdown Comparison

The maximum AUSF drawdown since its inception was -44.25%, which is greater than FXAIX's maximum drawdown of -33.79%. Use the drawdown chart below to compare losses from any high point for AUSF and FXAIX.

Drawdown Indicators

	AUSF	FXAIX	Difference
Max Drawdown Largest peak-to-trough decline	-44.25%	-33.79%	-10.46%
Max Drawdown (1Y) Largest decline over 1 year	-5.84%	-8.89%	+3.05%
Max Drawdown (3Y) Largest decline over 3 years	-12.29%	-18.76%	+6.47%
Max Drawdown (5Y) Largest decline over 5 years	-14.23%	-24.50%	+10.27%
Max Drawdown (10Y) Largest decline over 10 years	—	-33.79%	—
Current Drawdown Current decline from peak	-2.26%	0.00%	-2.26%
Average Drawdown Average peak-to-trough decline	-4.22%	-3.79%	-0.43%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.01%	1.90%	+0.11%

Volatility

AUSF vs. FXAIX - Volatility Comparison

The current volatility for Global X Adaptive U.S. Factor ETF (AUSF) is 2.41%, while Fidelity 500 Index Fund (FXAIX) has a volatility of 2.83%. This indicates that AUSF experiences smaller price fluctuations and is considered to be less risky than FXAIX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	AUSF	FXAIX	Difference
Volatility (1M) Calculated over the trailing 1-month period	2.41%	2.83%	-0.42%
Volatility (6M) Calculated over the trailing 6-month period	6.65%	8.97%	-2.32%
Volatility (1Y) Calculated over the trailing 1-year period	10.14%	11.86%	-1.72%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	13.65%	16.91%	-3.26%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	19.07%	18.07%	+1.00%

AUSF vs. FXAIX - Expense Ratio Comparison

AUSF has a 0.27% expense ratio, which is higher than FXAIX'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

AUSF vs. FXAIX - Dividend Comparison

AUSF's dividend yield for the trailing twelve months is around 2.76%, more than FXAIX's 1.03% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
AUSF Global X Adaptive U.S. Factor ETF	2.76%	2.78%	2.63%	1.83%	2.51%	2.22%	2.95%	4.02%	1.46%	0.00%	0.00%	0.00%
FXAIX Fidelity 500 Index Fund	1.03%	1.11%	1.25%	1.45%	1.69%	1.22%	1.60%	2.06%	2.72%	1.97%	2.52%	2.83%

Frequently Asked Questions

Can I hold both AUSF and FXAIX in my portfolio?

AUSF and FXAIX have a correlation of 0.49, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, AUSF or FXAIX?

FXAIX has higher volatility (2.83%) compared to AUSF (2.41%). In terms of maximum drawdown, AUSF dropped -44.25% vs FXAIX's -33.79%.

Which has better risk-adjusted returns?

FXAIX currently has the higher Sharpe Ratio (2.52 vs 1.50), 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.