ISPY vs. PAPI

Last updated Apr 1, 2026

Compare and contrast key facts about ProShares S&P 500 High Income ETF (ISPY) and Parametric Equity Premium Income ETF (PAPI).

ISPY and PAPI are both exchange-traded funds (ETFs), meaning they are traded on stock exchanges and can be bought and sold throughout the day. ISPY is a passively managed fund by ProShares that tracks the performance of the S&P 500 Daily Covered Call Index. It was launched on Dec 18, 2023. PAPI is an actively managed fund by Morgan Stanley. It was launched on Oct 16, 2023.

Performance

ISPY vs. PAPI - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in ProShares S&P 500 High Income ETF (ISPY) and Parametric Equity Premium Income ETF (PAPI). The values are adjusted to include any dividend payments, if applicable.

ISPY vs. PAPI - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023
ISPY ProShares S&P 500 High Income ETF	-4.08%	13.15%	21.31%	1.65%
PAPI Parametric Equity Premium Income ETF	8.31%	6.33%	8.90%	1.32%

Returns By Period

In the year-to-date period, ISPY achieves a -4.08% return, which is significantly lower than PAPI's 8.31% return.

ISPY

• 1D: 2.41%
• 1M: -4.58%
• YTD: -4.08%
• 6M: -1.91%
• 1Y: 12.93%
• 3Y*: —
• 5Y*: —
• 10Y*: —

PAPI

• 1D: 0.54%
• 1M: -2.62%
• YTD: 8.31%
• 6M: 9.20%
• 1Y: 11.50%
• 3Y*: —
• 5Y*: —
• 10Y*: —

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

ISPY vs. PAPI - Expense Ratio Comparison

ISPY has a 0.55% expense ratio, which is higher than PAPI's 0.29% expense ratio.

ISPY

ProShares S&P 500 High Income ETF

PAPI

Parametric Equity Premium Income ETF

Return for Risk

ISPY vs. PAPI — Risk / Return Rank

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

ISPY

ISPY Risk / Return Rank: 49
ISPY Sharpe Ratio Rank: 50
ISPY Sortino Ratio Rank: 44
ISPY Omega Ratio Rank: 48
ISPY Calmar Ratio Rank: 52
ISPY Martin Ratio Rank: 52

PAPI

PAPI Risk / Return Rank: 46
PAPI Sharpe Ratio Rank: 47
PAPI Sortino Ratio Rank: 46
PAPI Omega Ratio Rank: 43
PAPI Calmar Ratio Rank: 44
PAPI Martin Ratio Rank: 50

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.

ISPY vs. PAPI - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for ProShares S&P 500 High Income ETF (ISPY) and Parametric Equity Premium Income ETF (PAPI). 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.

	ISPY	PAPI	Difference
Sharpe ratio Return per unit of total volatility	0.84	0.82	+0.03
Sortino ratio Return per unit of downside risk	1.15	1.23	-0.08
Omega ratio Gain probability vs. loss probability	1.17	1.16	+0.01
Calmar ratio Return relative to maximum drawdown	1.21	1.08	+0.13
Martin ratio Return relative to average drawdown	4.68	4.62	+0.06
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

ISPY vs. PAPI - Sharpe Ratio Comparison

The current ISPY Sharpe Ratio is 0.84, which is comparable to the PAPI Sharpe Ratio of 0.82. The chart below compares the historical Sharpe Ratios of ISPY and PAPI, 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

	ISPY	PAPI	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	0.84	0.82	+0.03
Sharpe Ratio (All Time) Calculated using the full available price history	1.01	1.02	-0.01

Correlation

The correlation between ISPY and PAPI is 0.40, which is considered to be low. This implies their price changes are not closely related. A low correlation is generally favorable for portfolio diversification, as it helps to reduce overall risk by spreading it across multiple assets with different performance patterns.

Dividends

ISPY vs. PAPI - Dividend Comparison

ISPY's dividend yield for the trailing twelve months is around 8.86%, more than PAPI's 7.50% yield.

	TTM	2025	2024	2023
ISPY ProShares S&P 500 High Income ETF	8.86%	8.56%	9.84%	0.00%
PAPI Parametric Equity Premium Income ETF	7.50%	7.59%	7.07%	1.45%

Drawdowns

ISPY vs. PAPI - Drawdown Comparison

The maximum ISPY drawdown since its inception was -16.88%, which is greater than PAPI's maximum drawdown of -14.27%. Use the drawdown chart below to compare losses from any high point for ISPY and PAPI.

Drawdown Indicators

	ISPY	PAPI	Difference
Max Drawdown Largest peak-to-trough decline	-16.88%	-14.27%	-2.61%
Max Drawdown (1Y) Largest decline over 1 year	-11.17%	-11.59%	+0.42%
Current Drawdown Current decline from peak	-6.20%	-2.82%	-3.38%
Average Drawdown Average peak-to-trough decline	-2.16%	-2.57%	+0.41%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.89%	2.72%	+0.17%

Volatility

ISPY vs. PAPI - Volatility Comparison

ProShares S&P 500 High Income ETF (ISPY) has a higher volatility of 5.10% compared to Parametric Equity Premium Income ETF (PAPI) at 3.21%. This indicates that ISPY's price experiences larger fluctuations and is considered to be riskier than PAPI based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	ISPY	PAPI	Difference
Volatility (1M) Calculated over the trailing 1-month period	5.10%	3.21%	+1.89%
Volatility (6M) Calculated over the trailing 6-month period	9.05%	7.51%	+1.54%
Volatility (1Y) Calculated over the trailing 1-year period	15.38%	14.14%	+1.24%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	13.71%	11.96%	+1.75%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	13.71%	11.96%	+1.75%