PKW vs. SPHD

Last updated Apr 1, 2026

Compare and contrast key facts about Invesco BuyBack Achievers™ ETF (PKW) and Invesco S&P 500® High Dividend Low Volatility ETF (SPHD).

PKW and SPHD are both exchange-traded funds (ETFs), meaning they are traded on stock exchanges and can be bought and sold throughout the day. PKW is a passively managed fund by Invesco that tracks the performance of the NASDAQ US BuyBack Achievers Index. It was launched on Dec 20, 2006. SPHD is a passively managed fund by Invesco that tracks the performance of the S&P Low Volatility High Dividend index. It was launched on Oct 18, 2012. Both PKW and SPHD are passive ETFs, meaning that they are not actively managed but aim to replicate the performance of the underlying index as closely as possible.

Performance

PKW vs. SPHD - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Invesco BuyBack Achievers™ ETF (PKW) and Invesco S&P 500® High Dividend Low Volatility ETF (SPHD). The values are adjusted to include any dividend payments, if applicable.

PKW vs. SPHD - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
PKW Invesco BuyBack Achievers™ ETF	-2.12%	17.92%	17.33%	17.24%	-10.21%	32.62%	8.41%	34.09%	-10.53%	17.75%
SPHD Invesco S&P 500® High Dividend Low Volatility ETF	4.64%	3.41%	18.08%	1.32%	0.58%	24.98%	-9.98%	20.26%	-6.17%	11.90%

Returns By Period

In the year-to-date period, PKW achieves a -2.12% return, which is significantly lower than SPHD's 4.64% return. Over the past 10 years, PKW has outperformed SPHD with an annualized return of 12.54%, while SPHD has yielded a comparatively lower 7.24% annualized return.

PKW

• 1D: 2.20%
• 1M: -4.59%
• YTD: -2.12%
• 6M: -0.56%
• 1Y: 17.63%
• 3Y*: 16.74%
• 5Y*: 10.21%
• 10Y*: 12.54%

SPHD

• 1D: 0.55%
• 1M: -4.99%
• YTD: 4.64%
• 6M: 2.81%
• 1Y: 3.20%
• 3Y*: 9.99%
• 5Y*: 7.05%
• 10Y*: 7.24%

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

PKW vs. SPHD - Expense Ratio Comparison

PKW has a 0.62% expense ratio, which is higher than SPHD's 0.30% expense ratio.

PKW

Invesco BuyBack Achievers™ ETF

SPHD

Invesco S&P 500® High Dividend Low Volatility ETF

Return for Risk

PKW vs. SPHD — Risk / Return Rank

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

PKW

PKW Risk / Return Rank: 57
PKW Sharpe Ratio Rank: 54
PKW Sortino Ratio Rank: 55
PKW Omega Ratio Rank: 57
PKW Calmar Ratio Rank: 56
PKW Martin Ratio Rank: 60

SPHD

SPHD Risk / Return Rank: 20
SPHD Sharpe Ratio Rank: 19
SPHD Sortino Ratio Rank: 18
SPHD Omega Ratio Rank: 18
SPHD Calmar Ratio Rank: 22
SPHD Martin Ratio Rank: 22

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.

PKW vs. SPHD - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Invesco BuyBack Achievers™ ETF (PKW) and Invesco S&P 500® High Dividend Low Volatility ETF (SPHD). 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.

	PKW	SPHD	Difference
Sharpe ratio Return per unit of total volatility	0.92	0.22	+0.70
Sortino ratio Return per unit of downside risk	1.38	0.41	+0.97
Omega ratio Gain probability vs. loss probability	1.20	1.05	+0.15
Calmar ratio Return relative to maximum drawdown	1.33	0.38	+0.94
Martin ratio Return relative to average drawdown	5.70	1.22	+4.47
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

PKW vs. SPHD - Sharpe Ratio Comparison

The current PKW Sharpe Ratio is 0.92, which is higher than the SPHD Sharpe Ratio of 0.22. The chart below compares the historical Sharpe Ratios of PKW and SPHD, offering insights into how both investments have performed under varying market conditions. These values are calculated using daily returns over the previous 12 months.

Sharpe Ratios by Period

	PKW	SPHD	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	0.92	0.22	+0.70
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.59	0.50	+0.09
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.64	0.41	+0.22
Sharpe Ratio (All Time) Calculated using the full available price history	0.51	0.59	-0.08

Correlation

The correlation between PKW and SPHD is 0.76, which is considered to be high. That indicates a strong positive relationship between their price movements. Having highly-correlated positions in a portfolio may signal a lack of diversification, potentially leading to increased risk during market downturns.

Dividends

PKW vs. SPHD - Dividend Comparison

PKW's dividend yield for the trailing twelve months is around 0.94%, less than SPHD's 4.31% yield.

	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
PKW Invesco BuyBack Achievers™ ETF	0.94%	0.99%	0.86%	1.17%	1.22%	0.72%	1.48%	1.30%	1.30%	0.65%	1.59%	1.14%
SPHD Invesco S&P 500® High Dividend Low Volatility ETF	4.31%	4.02%	3.41%	4.48%	3.89%	3.45%	4.89%	4.07%	4.40%	3.14%	3.83%	3.49%

Drawdowns

PKW vs. SPHD - Drawdown Comparison

The maximum PKW drawdown since its inception was -54.59%, which is greater than SPHD's maximum drawdown of -41.39%. Use the drawdown chart below to compare losses from any high point for PKW and SPHD.

Drawdown Indicators

	PKW	SPHD	Difference
Max Drawdown Largest peak-to-trough decline	-54.59%	-41.39%	-13.20%
Max Drawdown (1Y) Largest decline over 1 year	-13.82%	-11.33%	-2.49%
Max Drawdown (5Y) Largest decline over 5 years	-23.51%	-19.50%	-4.01%
Max Drawdown (10Y) Largest decline over 10 years	-40.93%	-41.39%	+0.46%
Current Drawdown Current decline from peak	-5.83%	-5.14%	-0.69%
Average Drawdown Average peak-to-trough decline	-8.01%	-4.70%	-3.31%
Ulcer Index Depth and duration of drawdowns from previous peaks	3.22%	3.67%	-0.45%

Volatility

PKW vs. SPHD - Volatility Comparison

Invesco BuyBack Achievers™ ETF (PKW) has a higher volatility of 4.73% compared to Invesco S&P 500® High Dividend Low Volatility ETF (SPHD) at 3.21%. This indicates that PKW's price experiences larger fluctuations and is considered to be riskier than SPHD based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	PKW	SPHD	Difference
Volatility (1M) Calculated over the trailing 1-month period	4.73%	3.21%	+1.52%
Volatility (6M) Calculated over the trailing 6-month period	10.16%	7.91%	+2.25%
Volatility (1Y) Calculated over the trailing 1-year period	19.15%	14.51%	+4.64%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	17.47%	14.20%	+3.27%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	19.78%	17.65%	+2.13%