PY vs. CSTK

Last updated Apr 1, 2026

Compare and contrast key facts about Principal Value ETF (PY) and Invesco Comstock Contrarian Equity ETF (CSTK).

PY and CSTK are both exchange-traded funds (ETFs), meaning they are traded on stock exchanges and can be bought and sold throughout the day. PY is an actively managed fund by Principal. It was launched on Mar 21, 2016. CSTK is an actively managed fund by Invesco. It was launched on May 5, 2025.

Performance

PY vs. CSTK - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Principal Value ETF (PY) and Invesco Comstock Contrarian Equity ETF (CSTK). The values are adjusted to include any dividend payments, if applicable.

PY vs. CSTK - Yearly Performance Comparison

	2026 (YTD)	2025
PY Principal Value ETF	-1.34%	13.69%
CSTK Invesco Comstock Contrarian Equity ETF	0.02%	18.33%

Returns By Period

In the year-to-date period, PY achieves a -1.34% return, which is significantly lower than CSTK's 0.02% return.

PY

• 1D: 1.59%
• 1M: -4.13%
• YTD: -1.34%
• 6M: -0.79%
• 1Y: 7.25%
• 3Y*: 11.03%
• 5Y*: 7.67%
• 10Y*: 10.38%

CSTK

• 1D: 2.30%
• 1M: -5.52%
• YTD: 0.02%
• 6M: 4.52%
• 1Y: —
• 3Y*: —
• 5Y*: —
• 10Y*: —

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

PY vs. CSTK - Expense Ratio Comparison

PY has a 0.15% expense ratio, which is lower than CSTK's 0.35% expense ratio.

CSTK

Invesco Comstock Contrarian Equity ETF

PY

Principal Value ETF

Return for Risk

PY vs. CSTK — Risk / Return Rank

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

PY

PY Risk / Return Rank: 28
PY Sharpe Ratio Rank: 25
PY Sortino Ratio Rank: 25
PY Omega Ratio Rank: 28
PY Calmar Ratio Rank: 28
PY Martin Ratio Rank: 32

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.

PY vs. CSTK - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Principal Value ETF (PY) and Invesco Comstock Contrarian Equity ETF (CSTK). 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.

	PY	CSTK	Difference
Sharpe ratio Return per unit of total volatility	0.42	—	—
Sortino ratio Return per unit of downside risk	0.71	—	—
Omega ratio Gain probability vs. loss probability	1.11	—	—
Calmar ratio Return relative to maximum drawdown	0.64	—	—
Martin ratio Return relative to average drawdown	2.77	—	—
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

Sharpe Ratios by Period

	PY	CSTK	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	0.42	—	—
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.49	—	—
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.52	—	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.51	1.78	-1.27

Correlation

The correlation between PY and CSTK is 0.93, 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

PY vs. CSTK - Dividend Comparison

PY's dividend yield for the trailing twelve months is around 2.17%, more than CSTK's 1.97% yield.

	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016
PY Principal Value ETF	2.17%	2.14%	2.22%	2.68%	3.02%	2.83%	2.95%	2.25%	2.34%	1.68%	1.85%
CSTK Invesco Comstock Contrarian Equity ETF	1.97%	1.44%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%

Drawdowns

PY vs. CSTK - Drawdown Comparison

The maximum PY drawdown since its inception was -45.44%, which is greater than CSTK's maximum drawdown of -8.87%. Use the drawdown chart below to compare losses from any high point for PY and CSTK.

Drawdown Indicators

	PY	CSTK	Difference
Max Drawdown Largest peak-to-trough decline	-45.44%	-8.87%	-36.57%
Max Drawdown (1Y) Largest decline over 1 year	-13.27%	—	—
Max Drawdown (5Y) Largest decline over 5 years	-17.84%	—	—
Max Drawdown (10Y) Largest decline over 10 years	-45.44%	—	—
Current Drawdown Current decline from peak	-4.54%	-6.78%	+2.24%
Average Drawdown Average peak-to-trough decline	-5.12%	-1.26%	-3.86%
Ulcer Index Depth and duration of drawdowns from previous peaks	3.08%	—	—

Volatility

Volatility by Period

	PY	CSTK	Difference
Volatility (1M) Calculated over the trailing 1-month period	3.54%	—	—
Volatility (6M) Calculated over the trailing 6-month period	7.99%	—	—
Volatility (1Y) Calculated over the trailing 1-year period	17.19%	11.70%	+5.49%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	15.89%	11.70%	+4.19%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	20.10%	11.70%	+8.40%