PKW vs. VEGI

Last updated Apr 2, 2026

Compare and contrast key facts about Invesco BuyBack Achievers™ ETF (PKW) and iShares MSCI Agriculture Producers ETF (VEGI).

PKW and VEGI 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. VEGI is a passively managed fund by iShares that tracks the performance of the MSCI ACWI Select Agriculture Producers Investable Market Index. It was launched on Jan 31, 2012. Both PKW and VEGI 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. VEGI - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Invesco BuyBack Achievers™ ETF (PKW) and iShares MSCI Agriculture Producers ETF (VEGI). The values are adjusted to include any dividend payments, if applicable.

PKW vs. VEGI - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
PKW Invesco BuyBack Achievers™ ETF	-1.51%	17.92%	17.33%	17.24%	-10.21%	32.62%	8.41%	34.09%	-10.53%	17.75%
VEGI iShares MSCI Agriculture Producers ETF	18.25%	11.34%	-4.85%	-8.59%	6.34%	21.56%	20.06%	13.52%	-9.76%	19.79%

Returns By Period

In the year-to-date period, PKW achieves a -1.51% return, which is significantly lower than VEGI's 18.25% return. Over the past 10 years, PKW has outperformed VEGI with an annualized return of 12.61%, while VEGI has yielded a comparatively lower 9.60% annualized return.

PKW

• 1D: 0.63%
• 1M: -4.00%
• YTD: -1.51%
• 6M: 0.25%
• 1Y: 17.80%
• 3Y*: 16.98%
• 5Y*: 10.34%
• 10Y*: 12.61%

VEGI

• 1D: 0.82%
• 1M: -1.79%
• YTD: 18.25%
• 6M: 19.35%
• 1Y: 24.93%
• 3Y*: 5.26%
• 5Y*: 4.71%
• 10Y*: 9.60%

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

PKW vs. VEGI - Expense Ratio Comparison

PKW has a 0.62% expense ratio, which is higher than VEGI's 0.39% expense ratio.

PKW

Invesco BuyBack Achievers™ ETF

VEGI

iShares MSCI Agriculture Producers ETF

Return for Risk

PKW vs. VEGI — Risk / Return Rank

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

PKW

PKW Risk / Return Rank: 51
PKW Sharpe Ratio Rank: 50
PKW Sortino Ratio Rank: 50
PKW Omega Ratio Rank: 52
PKW Calmar Ratio Rank: 49
PKW Martin Ratio Rank: 56

VEGI

VEGI Risk / Return Rank: 75
VEGI Sharpe Ratio Rank: 76
VEGI Sortino Ratio Rank: 82
VEGI Omega Ratio Rank: 72
VEGI Calmar Ratio Rank: 82
VEGI Martin Ratio Rank: 66

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. VEGI - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Invesco BuyBack Achievers™ ETF (PKW) and iShares MSCI Agriculture Producers ETF (VEGI). 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	VEGI	Difference
Sharpe ratio Return per unit of total volatility	0.93	1.44	-0.51
Sortino ratio Return per unit of downside risk	1.39	2.20	-0.80
Omega ratio Gain probability vs. loss probability	1.21	1.28	-0.07
Calmar ratio Return relative to maximum drawdown	1.33	2.43	-1.10
Martin ratio Return relative to average drawdown	5.67	7.06	-1.39
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. VEGI - Sharpe Ratio Comparison

The current PKW Sharpe Ratio is 0.93, which is lower than the VEGI Sharpe Ratio of 1.44. The chart below compares the historical Sharpe Ratios of PKW and VEGI, 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	VEGI	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	0.93	1.44	-0.51
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.59	0.26	+0.33
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.64	0.51	+0.13
Sharpe Ratio (All Time) Calculated using the full available price history	0.51	0.35	+0.16

Correlation

The correlation between PKW and VEGI is 0.70, which is considered to be moderate. This suggests that the two assets have some degree of positive relationship in their price movements. Moderate correlation can be acceptable for portfolio diversification, offering a balance between risk and potential returns.

Dividends

PKW vs. VEGI - Dividend Comparison

PKW's dividend yield for the trailing twelve months is around 0.94%, less than VEGI's 1.97% 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%
VEGI iShares MSCI Agriculture Producers ETF	1.97%	2.33%	2.62%	2.54%	1.49%	1.46%	1.55%	1.84%	2.02%	1.75%	2.13%	2.49%

Drawdowns

PKW vs. VEGI - Drawdown Comparison

The maximum PKW drawdown since its inception was -54.59%, which is greater than VEGI's maximum drawdown of -37.37%. Use the drawdown chart below to compare losses from any high point for PKW and VEGI.

Drawdown Indicators

	PKW	VEGI	Difference
Max Drawdown Largest peak-to-trough decline	-54.59%	-37.37%	-17.22%
Max Drawdown (1Y) Largest decline over 1 year	-13.82%	-10.60%	-3.22%
Max Drawdown (5Y) Largest decline over 5 years	-23.51%	-28.86%	+5.35%
Max Drawdown (10Y) Largest decline over 10 years	-40.93%	-37.37%	-3.56%
Current Drawdown Current decline from peak	-5.24%	-3.29%	-1.95%
Average Drawdown Average peak-to-trough decline	-8.01%	-9.89%	+1.88%
Ulcer Index Depth and duration of drawdowns from previous peaks	3.24%	3.65%	-0.41%

Volatility

PKW vs. VEGI - Volatility Comparison

The current volatility for Invesco BuyBack Achievers™ ETF (PKW) is 4.79%, while iShares MSCI Agriculture Producers ETF (VEGI) has a volatility of 5.37%. This indicates that PKW experiences smaller price fluctuations and is considered to be less risky than VEGI based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	PKW	VEGI	Difference
Volatility (1M) Calculated over the trailing 1-month period	4.79%	5.37%	-0.58%
Volatility (6M) Calculated over the trailing 6-month period	10.17%	11.29%	-1.12%
Volatility (1Y) Calculated over the trailing 1-year period	19.15%	17.38%	+1.77%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	17.47%	17.86%	-0.39%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	19.77%	18.92%	+0.85%