SDF.AX vs. VOO

Last updated Jun 5, 2026

SDF.AX (Steadfast Group Limited) is a stock, while VOO (Vanguard S&P 500 ETF) is S&P 500 fund tracking the S&P 500 Index. Over the past 10 years, SDF.AX returned 10.34%/yr vs 15.88%/yr for VOO. At a 0.04 correlation, their price movements are largely independent.

Performance

SDF.AX vs. VOO - Performance Comparison

The chart below illustrates the hypothetical performance of a A$10,000 investment in Steadfast Group Limited (SDF.AX) and Vanguard S&P 500 ETF (VOO). The values are adjusted to include any dividend payments, if applicable.

Different Trading Currencies

SDF.AX is traded in AUD, while VOO is traded in USD. To make them comparable, the VOO values have been converted to AUD using the latest available exchange rates.

Returns By Period

In the year-to-date period, SDF.AX achieves a -22.80% return, which is significantly lower than VOO's 2.70% return. Over the past 10 years, SDF.AX has underperformed VOO with an annualized return of 10.34%, while VOO has yielded a comparatively higher 15.88% annualized return.

SDF.AX

• 1D: 0.76%
• 1M: -3.15%
• YTD: -22.80%
• 6M: -19.45%
• 1Y: -29.47%
• 3Y*: -9.46%
• 5Y*: 2.86%
• 10Y*: 10.34%

VOO

• 1D: -1.40%
• 1M: 3.23%
• YTD: 2.70%
• 6M: 1.92%
• 1Y: 16.17%
• 3Y*: 19.31%
• 5Y*: 15.54%
• 10Y*: 15.88%

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

SDF.AX vs. VOO - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
SDF.AX Steadfast Group Limited	-22.80%	-5.91%	2.47%	9.22%	6.92%	34.94%	17.73%	29.66%	0.15%	30.47%
VOO Vanguard S&P 500 ETF	2.70%	9.27%	37.55%	26.42%	-12.77%	36.35%	7.93%	31.98%	5.74%	12.50%

Correlation

The correlation between SDF.AX and VOO is 0.06, meaning there is essentially no relationship between their price movements. Each responds to its own set of market drivers, making them strong candidates for combining in a diversified portfolio.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.06
Correlation (3Y) Calculated over the trailing 3-year period	0.02
Correlation (5Y) Calculated over the trailing 5-year period	0.01
Correlation (10Y) Calculated over the trailing 10-year period	0.03
Correlation (All Time) Calculated using the full available price history since Aug 5, 2013	0.04

Return for Risk

SDF.AX vs. VOO — Risk / Return Rank

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

SDF.AX

SDF.AX Risk / Return Rank: 8
SDF.AX Sharpe Ratio Rank: 3
SDF.AX Sortino Ratio Rank: 7
SDF.AX Omega Ratio Rank: 6
SDF.AX Calmar Ratio Rank: 14
SDF.AX Martin Ratio Rank: 12

VOO

VOO Risk / Return Rank: 66
VOO Sharpe Ratio Rank: 67
VOO Sortino Ratio Rank: 63
VOO Omega Ratio Rank: 66
VOO Calmar Ratio Rank: 60
VOO Martin Ratio Rank: 73

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.

SDF.AX vs. VOO - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Steadfast Group Limited (SDF.AX) and Vanguard S&P 500 ETF (VOO). 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.

	SDF.AX	VOO	Difference
Sharpe ratio: Return per unit of total volatility	-1.08	1.62	-2.70
Sortino ratio: Return per unit of downside risk	-1.42	2.23	-3.65
Omega ratio: Gain probability vs. loss probability	0.81	1.30	-0.50
Calmar ratio: Return relative to maximum drawdown	-0.75	1.44	-2.18
Martin ratio: Return relative to average drawdown	-1.29	4.06	-5.35
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

SDF.AX vs. VOO - Sharpe Ratio Comparison

The current SDF.AX Sharpe Ratio is -1.08, which is lower than the VOO Sharpe Ratio of 1.62. The chart below compares the historical Sharpe Ratios of SDF.AX and VOO, 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

	SDF.AX	VOO	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	-1.08	1.62	-2.70
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.13	1.08	-0.95
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.40	0.98	-0.58
Sharpe Ratio (All Time) Calculated using the full available price history	0.44	1.11	-0.67

Drawdowns

SDF.AX vs. VOO - Drawdown Comparison

The maximum SDF.AX drawdown since its inception was -41.62%, which is greater than VOO's maximum drawdown of -24.78%. Use the drawdown chart below to compare losses from any high point for SDF.AX and VOO.

Drawdown Indicators

	SDF.AX	VOO	Difference
Max Drawdown Largest peak-to-trough decline	-41.62%	-24.78%	-16.84%
Max Drawdown (1Y) Largest decline over 1 year	-39.91%	-11.29%	-28.62%
Max Drawdown (3Y) Largest decline over 3 years	-39.91%	-17.50%	-22.41%
Max Drawdown (5Y) Largest decline over 5 years	-39.91%	-21.45%	-18.46%
Max Drawdown (10Y) Largest decline over 10 years	-41.62%	-24.78%	-16.84%
Current Drawdown Current decline from peak	-38.52%	-1.40%	-37.12%
Average Drawdown Average peak-to-trough decline	-8.22%	-3.73%	-4.49%
Ulcer Index Depth and duration of drawdowns from previous peaks	23.10%	3.99%	+19.11%

Volatility

SDF.AX vs. VOO - Volatility Comparison

Steadfast Group Limited (SDF.AX) has a higher volatility of 6.86% compared to Vanguard S&P 500 ETF (VOO) at 2.28%. This indicates that SDF.AX's price experiences larger fluctuations and is considered to be riskier than VOO based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	SDF.AX	VOO	Difference
Volatility (1M) Calculated over the trailing 1-month period	6.86%	2.28%	+4.58%
Volatility (6M) Calculated over the trailing 6-month period	19.64%	7.59%	+12.05%
Volatility (1Y) Calculated over the trailing 1-year period	27.50%	10.08%	+17.42%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	21.88%	14.51%	+7.37%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	25.87%	16.29%	+9.58%

Dividends

SDF.AX vs. VOO - Dividend Comparison

SDF.AX's dividend yield for the trailing twelve months is around 4.98%, more than VOO's 1.05% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
SDF.AX Steadfast Group Limited	4.98%	3.69%	2.95%	2.58%	2.38%	2.17%	2.41%	2.44%	2.73%	2.01%	2.71%	3.21%
VOO Vanguard S&P 500 ETF	1.05%	1.13%	1.24%	1.46%	1.69%	1.25%	1.54%	1.88%	2.06%	1.78%	2.02%	2.10%

Frequently Asked Questions

Can I hold both SDF.AX and VOO in my portfolio?

SDF.AX and VOO have a correlation of 0.06, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.