RGN.AX vs. STO.AX

Last updated Jun 5, 2026

RGN.AX (Region Group) and STO.AX (Santos Limited) are both stocks. RGN.AX operates in REIT - Retail (Real Estate), while STO.AX operates in Oil & Gas E&P (Energy). Over the past 10 years, RGN.AX returned 5.38%/yr vs 8.96%/yr for STO.AX. At a 0.14 correlation, their price movements are largely independent.

Performance

RGN.AX vs. STO.AX - Performance Comparison

The chart below illustrates the hypothetical performance of a A$10,000 investment in Region Group (RGN.AX) and Santos Limited (STO.AX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, RGN.AX achieves a -5.11% return, which is significantly lower than STO.AX's 30.29% return. Over the past 10 years, RGN.AX has underperformed STO.AX with an annualized return of 5.38%, while STO.AX has yielded a comparatively higher 8.96% annualized return.

RGN.AX

• 1D: 0.45%
• 1M: -3.04%
• YTD: -5.11%
• 6M: -3.56%
• 1Y: -1.75%
• 3Y*: 2.03%
• 5Y*: 3.28%
• 10Y*: 5.38%

STO.AX

• 1D: 0.77%
• 1M: -0.25%
• YTD: 30.29%
• 6M: 23.29%
• 1Y: 26.12%
• 3Y*: 6.81%
• 5Y*: 5.09%
• 10Y*: 8.96%

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

RGN.AX vs. STO.AX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
RGN.AX Region Group	-5.11%	20.55%	-2.41%	-11.18%	-3.59%	23.90%	-1.35%	10.84%	15.80%	11.80%
STO.AX Santos Limited	30.29%	-2.86%	-6.38%	11.89%	16.79%	2.91%	-22.19%	53.04%	1.26%	35.57%

Correlation

The correlation between RGN.AX and STO.AX is 0.03, 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	0.03
Correlation (3Y) Calculated over the trailing 3-year period	0.15
Correlation (5Y) Calculated over the trailing 5-year period	0.12
Correlation (10Y) Calculated over the trailing 10-year period	0.13
Correlation (All Time) Calculated using the full available price history since Nov 26, 2012	0.14

The correlation between RGN.AX and STO.AX shifts across timeframes, from 0.03 (1 year) to 0.15 (3 years), reflecting how their relationship changes across market environments.

Return for Risk

RGN.AX vs. STO.AX — Risk / Return Rank

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

RGN.AX

RGN.AX Risk / Return Rank: 33
RGN.AX Sharpe Ratio Rank: 36
RGN.AX Sortino Ratio Rank: 29
RGN.AX Omega Ratio Rank: 29
RGN.AX Calmar Ratio Rank: 37
RGN.AX Martin Ratio Rank: 35

STO.AX

STO.AX Risk / Return Rank: 64
STO.AX Sharpe Ratio Rank: 68
STO.AX Sortino Ratio Rank: 62
STO.AX Omega Ratio Rank: 65
STO.AX Calmar Ratio Rank: 62
STO.AX 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.

RGN.AX vs. STO.AX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Region Group (RGN.AX) and Santos Limited (STO.AX). 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.

	RGN.AX	STO.AX	Difference
Sharpe ratio: Return per unit of total volatility	-0.13	0.86	-0.99
Sortino ratio: Return per unit of downside risk	-0.08	1.36	-1.44
Omega ratio: Gain probability vs. loss probability	0.99	1.20	-0.21
Calmar ratio: Return relative to maximum drawdown	-0.14	1.00	-1.13
Martin ratio: Return relative to average drawdown	-0.37	2.05	-2.41
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

RGN.AX vs. STO.AX - Sharpe Ratio Comparison

The current RGN.AX Sharpe Ratio is -0.13, which is lower than the STO.AX Sharpe Ratio of 0.86. The chart below compares the historical Sharpe Ratios of RGN.AX and STO.AX, 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

	RGN.AX	STO.AX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	-0.13	0.86	-0.99
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.17	0.18	-0.01
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.26	0.25	+0.01
Sharpe Ratio (All Time) Calculated using the full available price history	0.44	0.21	+0.23

Drawdowns

RGN.AX vs. STO.AX - Drawdown Comparison

The maximum RGN.AX drawdown since its inception was -35.33%, smaller than the maximum STO.AX drawdown of -81.23%. Use the drawdown chart below to compare losses from any high point for RGN.AX and STO.AX.

Drawdown Indicators

	RGN.AX	STO.AX	Difference
Max Drawdown Largest peak-to-trough decline	-35.33%	-81.23%	+45.90%
Max Drawdown (1Y) Largest decline over 1 year	-12.78%	-24.97%	+12.19%
Max Drawdown (3Y) Largest decline over 3 years	-20.77%	-30.11%	+9.34%
Max Drawdown (5Y) Largest decline over 5 years	-31.19%	-30.11%	-1.08%
Max Drawdown (10Y) Largest decline over 10 years	-35.33%	-69.14%	+33.81%
Current Drawdown Current decline from peak	-9.01%	-19.55%	+10.54%
Average Drawdown Average peak-to-trough decline	-9.48%	-24.96%	+15.48%
Ulcer Index Depth and duration of drawdowns from previous peaks	4.72%	12.24%	-7.52%

Volatility

RGN.AX vs. STO.AX - Volatility Comparison

The current volatility for Region Group (RGN.AX) is 3.53%, while Santos Limited (STO.AX) has a volatility of 7.18%. This indicates that RGN.AX experiences smaller price fluctuations and is considered to be less risky than STO.AX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	RGN.AX	STO.AX	Difference
Volatility (1M) Calculated over the trailing 1-month period	3.53%	7.18%	-3.65%
Volatility (6M) Calculated over the trailing 6-month period	9.97%	20.16%	-10.19%
Volatility (1Y) Calculated over the trailing 1-year period	13.72%	28.94%	-15.22%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	19.12%	27.56%	-8.44%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	20.62%	35.47%	-14.85%

Dividends

RGN.AX vs. STO.AX - Dividend Comparison

RGN.AX's dividend yield for the trailing twelve months is around 6.23%, more than STO.AX's 4.43% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
RGN.AX Region Group	6.23%	5.91%	6.62%	6.37%	5.72%	4.68%	4.25%	5.60%	5.63%	5.79%	5.70%	5.54%
STO.AX Santos Limited	4.43%	5.93%	6.88%	4.71%	3.18%	2.22%	1.67%	2.14%	0.87%	0.00%	1.24%	7.10%

Financials

Frequently Asked Questions

Can I hold both RGN.AX and STO.AX in my portfolio?

RGN.AX and STO.AX have a correlation of 0.03, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.