CSTK vs. PY

Last updated Apr 1, 2026

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

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

Performance

CSTK vs. PY - Performance Comparison

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

CSTK vs. PY - Yearly Performance Comparison

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

Returns By Period

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

CSTK

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

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%

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

CSTK vs. PY - Expense Ratio Comparison

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

CSTK

Invesco Comstock Contrarian Equity ETF

PY

Principal Value ETF

Return for Risk

CSTK vs. PY — 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.

CSTK vs. PY - Risk-Adjusted Trends Comparison

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

Risk / return metrics aren't available yet — we need at least 12 months of trading data to calculate them.

Sharpe Ratios by Period

	CSTK	PY	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	1.78	0.51	+1.27

Correlation

The correlation between CSTK and PY 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

CSTK vs. PY - Dividend Comparison

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

	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016
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%
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%

Drawdowns

CSTK vs. PY - Drawdown Comparison

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

Drawdown Indicators

	CSTK	PY	Difference
Max Drawdown Largest peak-to-trough decline	-8.87%	-45.44%	+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	-6.78%	-4.54%	-2.24%
Average Drawdown Average peak-to-trough decline	-1.26%	-5.12%	+3.86%
Ulcer Index Depth and duration of drawdowns from previous peaks	—	3.08%	—

Volatility

Volatility by Period

	CSTK	PY	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	11.70%	17.19%	-5.49%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	11.70%	15.89%	-4.19%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	11.70%	20.10%	-8.40%