PWR vs. III.L

Last updated Jun 13, 2026

PWR (Quanta Services, Inc.) and III.L (3I Group plc) are both stocks. PWR operates in Engineering & Construction (Industrials), while III.L operates in Investment Banking & Investment Services (Financial Services). Over the past 10 years, PWR returned 41.17%/yr vs 19.21%/yr for III.L. At a 0.30 correlation, their price movements are largely independent.

Performance

PWR vs. III.L - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Quanta Services, Inc. (PWR) and 3I Group plc (III.L). The values are adjusted to include any dividend payments, if applicable.

Different Trading Currencies

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

Returns By Period

In the year-to-date period, PWR achieves a 67.76% return, which is significantly higher than III.L's -29.56% return. Over the past 10 years, PWR has outperformed III.L with an annualized return of 41.17%, while III.L has yielded a comparatively lower 19.21% annualized return.

PWR

• 1D: 3.58%
• 1M: -8.53%
• YTD: 67.76%
• 6M: 61.62%
• 1Y: 97.52%
• 3Y*: 56.60%
• 5Y*: 50.60%
• 10Y*: 41.17%

III.L

• 1D: 3.61%
• 1M: -5.53%
• YTD: -29.56%
• 6M: -26.02%
• 1Y: -44.56%
• 3Y*: 9.18%
• 5Y*: 15.13%
• 10Y*: 19.21%

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

PWR vs. III.L - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
PWR Quanta Services, Inc.	67.76%	33.70%	46.60%	51.70%	24.63%	59.50%	77.74%	35.84%	-22.93%	12.22%
III.L 3I Group plc	-29.56%	0.62%	47.61%	95.24%	-13.78%	27.82%	12.71%	53.02%	-16.76%	46.43%

Correlation

The correlation between PWR and III.L is 0.19, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.19
Correlation (3Y) Calculated over the trailing 3-year period	0.21
Correlation (5Y) Calculated over the trailing 5-year period	0.27
Correlation (10Y) Calculated over the trailing 10-year period	0.27
Correlation (All Time) Calculated using the full available price history since Jul 11, 2007	0.30

The correlation between PWR and III.L shifts across timeframes, from 0.19 (1 year) to 0.30 (all time), reflecting how their relationship changes across market environments.

Fundamentals

Market Cap PWR : $107.64B III.L : £23.50B
EPS PWR : $7.29 III.L : £10.41
PE Ratio PWR : 97.08 III.L : 2.22
PEG Ratio PWR : 4.81 III.L : 0.27
PS Ratio PWR : 3.58 III.L : 10.82
PB Ratio PWR : 11.90 III.L : 0.76
Total Revenue (TTM) PWR : $29.99B III.L : £2.12B
Gross Profit (TTM) PWR : $4.08B III.L : £5.57B
EBITDA (TTM) PWR : $2.40B III.L : £9.82B

Return for Risk

PWR vs. III.L — Risk / Return Rank

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

PWR

PWR Risk / Return Rank: 93
PWR Sharpe Ratio Rank: 94
PWR Sortino Ratio Rank: 92
PWR Omega Ratio Rank: 92
PWR Calmar Ratio Rank: 94
PWR Martin Ratio Rank: 95

III.L

III.L Risk / Return Rank: 7
III.L Sharpe Ratio Rank: 5
III.L Sortino Ratio Rank: 8
III.L Omega Ratio Rank: 6
III.L Calmar Ratio Rank: 11
III.L Martin Ratio Rank: 4

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.

PWR vs. III.L - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Quanta Services, Inc. (PWR) and 3I Group plc (III.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.

Values are calculated on a 1-year rolling basis and updated daily. Risk-adjusted metrics are more stable over longer periods — use the period switch above to explore them.

	PWR	III.L	Difference
Sharpe ratio: Return per unit of total volatility	2.64	-1.01	+3.65
Sortino ratio: Return per unit of downside risk	3.32	-1.35	+4.67
Omega ratio: Gain probability vs. loss probability	1.44	0.80	+0.64
Calmar ratio: Return relative to maximum drawdown	5.73	-0.85	+6.58
Martin ratio: Return relative to average drawdown	18.09	-1.67	+19.76

PWR vs. III.L - Sharpe Ratio Comparison

The current PWR Sharpe Ratio is 2.64, which is higher than the III.L Sharpe Ratio of -1.01. The chart below compares the historical Sharpe Ratios of PWR and III.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.

Drawdowns

PWR vs. III.L - Drawdown Comparison

The maximum PWR drawdown since its inception was -97.07%, which is greater than III.L's maximum drawdown of -88.62%. Use the drawdown chart below to compare losses from any high point for PWR and III.L.

Drawdown Indicators

	PWR	III.L	Difference
Max Drawdown Largest peak-to-trough decline	-97.07%	-88.62%	-8.45%
Max Drawdown (1Y) Largest decline over 1 year	-17.11%	-52.57%	+35.46%
Max Drawdown (3Y) Largest decline over 3 years	-33.89%	-52.57%	+18.68%
Max Drawdown (5Y) Largest decline over 5 years	-33.89%	-52.57%	+18.68%
Max Drawdown (10Y) Largest decline over 10 years	-45.53%	-54.36%	+8.83%
Current Drawdown Current decline from peak	-9.87%	-47.55%	+37.68%
Average Drawdown Average peak-to-trough decline	-46.84%	-27.21%	-19.63%
Ulcer Index Depth and duration of drawdowns from previous peaks	5.41%	26.69%	-21.28%

Volatility

PWR vs. III.L - Volatility Comparison

The current volatility for Quanta Services, Inc. (PWR) is 13.07%, while 3I Group plc (III.L) has a volatility of 19.15%. This indicates that PWR experiences smaller price fluctuations and is considered to be less risky than III.L based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	PWR	III.L	Difference
Volatility (1M) Calculated over the trailing 1-month period	13.07%	19.15%	-6.08%
Volatility (6M) Calculated over the trailing 6-month period	30.74%	37.86%	-7.12%
Volatility (1Y) Calculated over the trailing 1-year period	37.12%	43.99%	-6.87%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	35.79%	33.13%	+2.66%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	33.78%	33.07%	+0.71%

Dividends

PWR vs. III.L - Dividend Comparison

PWR's dividend yield for the trailing twelve months is around 0.06%, less than III.L's 3.42% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
III.L 3I Group plc	3.42%	2.42%	1.82%	2.32%	3.76%	2.78%	3.02%	3.42%	4.78%	2.90%	3.41%	2.37%
PWR Quanta Services, Inc.	0.06%	0.09%	0.09%	0.15%	0.25%	0.16%	0.29%	0.42%	0.13%	0.00%	0.00%	0.00%

Financials

Frequently Asked Questions

Can I hold both PWR and III.L in my portfolio?

PWR and III.L have a correlation of 0.19, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.