SGSOY vs. RIO.L

Last updated Jun 9, 2026

SGSOY (SGS SA) and RIO.L (Rio Tinto PLC) are both stocks. SGSOY operates in Consulting Services (Industrials), while RIO.L operates in Other Industrial Metals & Mining (Basic Materials). Over the past 10 years, SGSOY returned 5.83%/yr vs 22.04%/yr for RIO.L. At a 0.31 correlation, their price movements are largely independent.

Performance

SGSOY vs. RIO.L - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in SGS SA (SGSOY) and Rio Tinto PLC (RIO.L). The values are adjusted to include any dividend payments, if applicable.

Different Trading Currencies

SGSOY is traded in USD, while RIO.L is traded in GBp. To make them comparable, the RIO.L values have been converted to USD using the latest available exchange rates.

Returns By Period

In the year-to-date period, SGSOY achieves a 1.98% return, which is significantly lower than RIO.L's 29.22% return. Over the past 10 years, SGSOY has underperformed RIO.L with an annualized return of 5.83%, while RIO.L has yielded a comparatively higher 22.04% annualized return.

SGSOY

• 1D: 0.18%
• 1M: 2.95%
• YTD: 1.98%
• 6M: 5.02%
• 1Y: 12.66%
• 3Y*: 10.56%
• 5Y*: 1.44%
• 10Y*: 5.83%

RIO.L

• 1D: 0.08%
• 1M: -3.38%
• YTD: 29.22%
• 6M: 42.87%
• 1Y: 81.14%
• 3Y*: 23.68%
• 5Y*: 11.89%
• 10Y*: 22.04%

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

SGSOY vs. RIO.L - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
SGSOY SGS SA	1.98%	19.14%	20.15%	-4.05%	-29.29%	16.08%	12.53%	23.36%	-12.00%	35.62%
RIO.L Rio Tinto PLC	29.22%	44.94%	-14.82%	12.61%	17.90%	-0.65%	34.36%	33.42%	-5.37%	43.93%

Correlation

The correlation between SGSOY and RIO.L is 0.25, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.25
Correlation (3Y) Calculated over the trailing 3-year period	0.24
Correlation (5Y) Calculated over the trailing 5-year period	0.25
Correlation (10Y) Calculated over the trailing 10-year period	0.24
Correlation (All Time) Calculated using the full available price history since Jul 16, 2007	0.31

Fundamentals

Market Cap SGSOY : $21.57B RIO.L : £124.62B
EPS SGSOY : $0.65 RIO.L : £13.15
PE Ratio SGSOY : 17.22 RIO.L : 5.78
PS Ratio SGSOY : 1.56 RIO.L : 1.12
PB Ratio SGSOY : 23.94 RIO.L : 2.00
Total Revenue (TTM) SGSOY : $13.71B RIO.L : £111.44B
Gross Profit (TTM) SGSOY : $8.66B RIO.L : £45.93B
EBITDA (TTM) SGSOY : $2.70B RIO.L : £44.33B

Return for Risk

SGSOY vs. RIO.L — Risk / Return Rank

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

SGSOY

SGSOY Risk / Return Rank: 58
SGSOY Sharpe Ratio Rank: 63
SGSOY Sortino Ratio Rank: 55
SGSOY Omega Ratio Rank: 54
SGSOY Calmar Ratio Rank: 58
SGSOY Martin Ratio Rank: 62

RIO.L

RIO.L Risk / Return Rank: 95
RIO.L Sharpe Ratio Rank: 96
RIO.L Sortino Ratio Rank: 95
RIO.L Omega Ratio Rank: 94
RIO.L Calmar Ratio Rank: 94
RIO.L Martin Ratio Rank: 97

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.

SGSOY vs. RIO.L - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for SGS SA (SGSOY) and Rio Tinto PLC (RIO.L). 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.

	SGSOY	RIO.L	Difference
Sharpe ratio: Return per unit of total volatility	0.61	2.94	-2.33
Sortino ratio: Return per unit of downside risk	1.01	3.60	-2.59
Omega ratio: Gain probability vs. loss probability	1.12	1.45	-0.33
Calmar ratio: Return relative to maximum drawdown	0.71	5.25	-4.54
Martin ratio: Return relative to average drawdown	2.08	19.91	-17.83
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

SGSOY vs. RIO.L - Sharpe Ratio Comparison

The current SGSOY Sharpe Ratio is 0.61, which is lower than the RIO.L Sharpe Ratio of 2.94. The chart below compares the historical Sharpe Ratios of SGSOY and RIO.L, 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

	SGSOY	RIO.L	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	0.61	2.94	-2.33
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.06	0.40	-0.34
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.27	0.72	-0.44
Sharpe Ratio (All Time) Calculated using the full available price history	0.29	0.21	+0.09

Drawdowns

SGSOY vs. RIO.L - Drawdown Comparison

The maximum SGSOY drawdown since its inception was -53.49%, smaller than the maximum RIO.L drawdown of -88.71%. Use the drawdown chart below to compare losses from any high point for SGSOY and RIO.L.

Drawdown Indicators

	SGSOY	RIO.L	Difference
Max Drawdown Largest peak-to-trough decline	-53.49%	-88.71%	+35.22%
Max Drawdown (1Y) Largest decline over 1 year	-17.90%	-15.38%	-2.52%
Max Drawdown (3Y) Largest decline over 3 years	-23.22%	-23.98%	+0.76%
Max Drawdown (5Y) Largest decline over 5 years	-36.92%	-35.65%	-1.27%
Max Drawdown (10Y) Largest decline over 10 years	-36.92%	-38.42%	+1.50%
Current Drawdown Current decline from peak	-7.68%	-9.32%	+1.64%
Average Drawdown Average peak-to-trough decline	-12.25%	-28.11%	+15.86%
Ulcer Index Depth and duration of drawdowns from previous peaks	6.11%	4.06%	+2.05%

Volatility

SGSOY vs. RIO.L - Volatility Comparison

The current volatility for SGS SA (SGSOY) is 4.66%, while Rio Tinto PLC (RIO.L) has a volatility of 11.59%. This indicates that SGSOY experiences smaller price fluctuations and is considered to be less risky than RIO.L based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	SGSOY	RIO.L	Difference
Volatility (1M) Calculated over the trailing 1-month period	4.66%	11.59%	-6.93%
Volatility (6M) Calculated over the trailing 6-month period	15.71%	22.89%	-7.18%
Volatility (1Y) Calculated over the trailing 1-year period	20.76%	27.52%	-6.76%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	22.85%	29.43%	-6.58%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	21.46%	30.77%	-9.31%

Dividends

SGSOY vs. RIO.L - Dividend Comparison

SGSOY's dividend yield for the trailing twelve months is around 3.68%, less than RIO.L's 3.95% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
RIO.L Rio Tinto PLC	3.95%	4.75%	7.16%	5.53%	9.90%	14.14%	5.43%	5.76%	6.07%	4.66%	3.42%	7.42%
SGSOY SGS SA	3.68%	3.19%	3.64%	3.96%	3.72%	2.52%	1.61%	1.69%	2.10%	4.35%	5.56%	2.04%

Financials

SGSOY vs. RIO.L - Profitability Comparison

The chart below illustrates the profitability comparison between SGS SA and Rio Tinto PLC over time, highlighting three key metrics: Gross Profit Margin, Operating Margin, and Net Profit Margin.

SGSOY - Gross Margin

Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jun 2026, SGS SA reported a gross profit of 1.32B and revenue of 3.49B. Therefore, the gross margin over that period was 37.9%.

RIO.L - Gross Margin

Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jun 2026, Rio Tinto PLC reported a gross profit of 8.22B and revenue of 30.91B. Therefore, the gross margin over that period was 26.6%.

SGSOY - Operating Margin

Operating margin is calculated as operating income divided by revenue. For the three months ending on Jun 2026, SGS SA reported an operating income of 561.32M and revenue of 3.49B, resulting in an operating margin of 16.1%.

RIO.L - Operating Margin

Operating margin is calculated as operating income divided by revenue. For the three months ending on Jun 2026, Rio Tinto PLC reported an operating income of 8.22B and revenue of 30.91B, resulting in an operating margin of 26.6%.

SGSOY - Net Margin

Net margin is calculated as net income divided by revenue. For the three months ending on Jun 2026, SGS SA reported a net income of 351.08M and revenue of 3.49B, resulting in a net margin of 10.1%.

RIO.L - Net Margin

Net margin is calculated as net income divided by revenue. For the three months ending on Jun 2026, Rio Tinto PLC reported a net income of 5.46B and revenue of 30.91B, resulting in a net margin of 17.7%.

Frequently Asked Questions

Can I hold both SGSOY and RIO.L in my portfolio?

SGSOY and RIO.L have a correlation of 0.25, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.