PBD vs. ARKK

Last updated Aug 2, 2026

PBD (Invesco Global Clean Energy ETF) and ARKK (ARK Innovation ETF) are both exchange-traded funds - PBD is a Alternative Energy Equities fund tracking the WilderHill New Energy Global Innovation index, while ARKK is a Technology Equities fund actively managed by ARK. PBD is passively managed, while ARKK is actively managed. Over the past 10 years, PBD returned 6.75%/yr vs 14.31%/yr for ARKK. Their 0.64 correlation means they have sometimes moved together and sometimes differently. Both charge a 0.75% expense ratio.

Performance

PBD vs. ARKK - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Invesco Global Clean Energy ETF (PBD) and ARK Innovation ETF (ARKK). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, PBD achieves a 8.20% return, which is significantly higher than ARKK's -7.38% return. Over the past 10 years, PBD has underperformed ARKK with an annualized return of 6.75%, while ARKK has yielded a comparatively higher 14.31% annualized return.

PBD

• 1D: -0.26%
• 1M: -9.06%
• 6M: -1.10%
• YTD: 8.20%
• 1Y: 33.01%
• 3Y*: -1.70%
• 5Y*: -8.16%
• 10Y*: 6.75%
• ALL TIME*: -0.46%

ARKK

• 1D: -2.28%
• 1M: -12.32%
• 6M: -4.85%
• YTD: -7.38%
• 1Y: 0.11%
• 3Y*: 13.25%
• 5Y*: -9.65%
• 10Y*: 14.31%
• ALL TIME*: 12.17%

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

Liquidity Comparison

Position	Avg. Volume Value (2W)	Avg. Volume Value (1M)	Avg. Volume Value (3M)
ARKK ARK Innovation ETF	$356.24M	$389.65M	$523.48M
PBD Invesco Global Clean Energy ETF	$950.09K	$971.83K	$1.21M

PBD vs. ARKK - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
PBD Invesco Global Clean Energy ETF	8.20%	43.65%	-26.39%	-10.69%	-29.70%	-22.30%	145.46%	40.00%	-19.32%	28.72%
ARKK ARK Innovation ETF	-7.38%	35.49%	8.40%	69.04%	-66.97%	-23.60%	152.71%	35.08%	3.52%	87.33%

Correlation

The correlation between PBD and ARKK is 0.67, which is moderate. They have sometimes moved together and sometimes differently, sharing some price drivers without tracking each other closely.

	Correlation
Correlation (1Y) Focuses on recent behavior, but can change the most.	0.67
Correlation (3Y) Balances recent behavior with more history.	0.66
Correlation (5Y) Shows whether the relationship held over a longer period.	0.71
Correlation (10Y) Provides a long-term view across more market conditions.	0.65
Correlation (All Time) Calculated using the full available price history since Oct 31, 2014	0.64

The correlation between PBD and ARKK has been stable across timeframes, ranging from 0.64 to 0.71 - a consistent structural relationship.

PBD vs. ARKK - Sectors Allocation Comparison

Sectors	PBD	ARKK
Industrials	44.6%	9.4%
Technology	19.5%	25.8%
Utilities	16.9%	-
Consumer Cyclical	12.7%	13.0%
Energy	7.4%	-
Basic Materials	4.0%	-
Financial Services	1.5%	12.8%
Consumer Defensive	0.9%	-
Communication Services	-	7.1%
Healthcare	-	32.0%
Real Estate	-	-

Return for Risk

PBD vs. ARKK — Risk / Return Rank

Compare historical risk-adjusted metric ranks over the past 12 months.

PBD

PBD Risk / Return Rank: 45
PBD Sharpe Ratio Rank: 50
PBD Sortino Ratio Rank: 47
PBD Omega Ratio Rank: 47
PBD Calmar Ratio Rank: 37
PBD Martin Ratio Rank: 41

ARKK

ARKK Risk / Return Rank: 9
ARKK Sharpe Ratio Rank: 9
ARKK Sortino Ratio Rank: 10
ARKK Omega Ratio Rank: 10
ARKK Calmar Ratio Rank: 8
ARKK Martin Ratio Rank: 8

The rank (0–100) uses a weighted average of the Sharpe, Sortino, Omega, Calmar, and Martin percentile ranks for the trailing 12 months. Higher means stronger historical risk-adjusted performance within the peer group.

PBD vs. ARKK - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Invesco Global Clean Energy ETF (PBD) and ARK Innovation ETF (ARKK). 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.

	PBD	ARKK	Difference
Sharpe ratio: Return per unit of total volatility	1.23	-0.15	+1.38
Sortino ratio: Return per unit of downside risk	1.72	0.05	+1.68
Omega ratio: Gain probability vs. loss probability	1.22	1.01	+0.21
Calmar ratio: Return relative to maximum drawdown	1.28	-0.17	+1.45
Martin ratio: Return relative to average drawdown	4.50	-0.35	+4.85

PBD vs. ARKK - Sharpe Ratio Comparison

The current PBD Sharpe Ratio is 1.23, which is higher than the ARKK Sharpe Ratio of -0.15. The chart below compares the historical Sharpe Ratios of PBD and ARKK, 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

PBD vs. ARKK - Drawdown Comparison

The maximum PBD drawdown since its inception was -78.60%, roughly equal to the maximum ARKK drawdown of -80.97%. Use the drawdown chart below to compare losses from any high point for PBD and ARKK.

Drawdown Indicators

	PBD	ARKK	Difference
Max Drawdown Largest peak-to-trough decline	-78.60%	-80.97%	+2.37%
Max Drawdown (1Y) Largest decline over 1 year	-25.18%	-31.35%	+6.17%
Max Drawdown (3Y) Largest decline over 3 years	-48.69%	-39.56%	-9.13%
Max Drawdown (5Y) Largest decline over 5 years	-69.15%	-76.27%	+7.12%
Max Drawdown (10Y) Largest decline over 10 years	-75.40%	-80.97%	+5.57%
Current Drawdown Current decline from peak	-52.36%	-53.87%	+1.51%
Average Drawdown Average peak-to-trough decline	-53.34%	-30.38%	-22.96%
Ulcer Index Depth and duration of drawdowns from previous peaks	7.13%	15.57%	-8.44%

Volatility

PBD vs. ARKK - Volatility Comparison

The current volatility for Invesco Global Clean Energy ETF (PBD) is 8.52%, while ARK Innovation ETF (ARKK) has a volatility of 10.19%. This indicates that PBD experiences smaller price fluctuations and is considered to be less risky than ARKK based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	PBD	ARKK	Difference
Volatility (1M) Calculated over the trailing 1-month period	8.52%	10.19%	-1.67%
Volatility (6M) Calculated over the trailing 6-month period	20.91%	27.72%	-6.81%
Volatility (1Y) Calculated over the trailing 1-year period	26.04%	36.83%	-10.79%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	28.77%	46.55%	-17.78%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	27.41%	40.48%	-13.07%

PBD vs. ARKK - Expense Ratio Comparison

Both PBD and ARKK have an expense ratio of 0.75%.

Dividends

PBD vs. ARKK - Dividend Comparison

PBD's dividend yield for the trailing twelve months is around 1.76%, while ARKK has not paid dividends to shareholders.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
ARKK ARK Innovation ETF	0.00%	0.00%	0.00%	0.70%	0.00%	0.55%	1.64%	0.38%	3.14%	1.32%	0.00%	2.27%
PBD Invesco Global Clean Energy ETF	1.76%	2.71%	1.81%	2.85%	2.98%	0.67%	0.48%	1.83%	1.86%	1.76%	2.04%	1.24%

Frequently Asked Questions

Can I hold both PBD and ARKK in my portfolio?

PBD and ARKK have a correlation of 0.67, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, PBD or ARKK?

ARKK has higher volatility (10.19%) compared to PBD (8.52%). In terms of maximum drawdown, PBD dropped -78.60% vs ARKK's -80.97%.

Which ETF is better, PBD or ARKK?

On 10-year performance, ARKK leads with 14.31% vs 6.75% for PBD. Both ETFs have the same 0.75% expense ratio. On volatility, PBD has been the lower-risk option at 8.52%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, PBD or ARKK?

Over the 10-year period, ARKK has performed better with a 14.31% return vs 6.75%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, PBD or ARKK?

PBD and ARKK have the same expense ratio: 0.75% per year.

Which ETF pays a higher dividend yield, PBD or ARKK?

PBD has the higher dividend yield at 1.76%, compared with 0.00% for ARKK.

What is the main difference between PBD and ARKK?

PBD is categorized as Alternative Energy Equities, while ARKK is Technology Equities. They also come from different issuers: Invesco and ARK.

Which has better risk-adjusted returns?

PBD currently has the higher Sharpe Ratio (1.23 vs -0.15), 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.