PSFO vs. CALF

Last updated Apr 1, 2026

Compare and contrast key facts about Pacer Swan SOS Flex (October) ETF (PSFO) and Pacer US Small Cap Cash Cows 100 ETF (CALF).

PSFO and CALF are both exchange-traded funds (ETFs), meaning they are traded on stock exchanges and can be bought and sold throughout the day. PSFO is an actively managed fund by Pacer. It was launched on Sep 30, 2021. CALF is a passively managed fund by Pacer that tracks the performance of the Pacer US Small Cap Cash Cows Index. It was launched on Jun 16, 2017.

Performance

PSFO vs. CALF - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Pacer Swan SOS Flex (October) ETF (PSFO) and Pacer US Small Cap Cash Cows 100 ETF (CALF). The values are adjusted to include any dividend payments, if applicable.

PSFO vs. CALF - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021
PSFO Pacer Swan SOS Flex (October) ETF	-2.20%	12.93%	10.78%	20.03%	-0.34%	4.75%
CALF Pacer US Small Cap Cash Cows 100 ETF	1.28%	2.33%	-7.41%	35.43%	-15.20%	1.55%

Returns By Period

In the year-to-date period, PSFO achieves a -2.20% return, which is significantly lower than CALF's 1.28% return.

PSFO

• 1D: 1.92%
• 1M: -2.82%
• YTD: -2.20%
• 6M: -0.27%
• 1Y: 12.48%
• 3Y*: 11.45%
• 5Y*: —
• 10Y*: —

CALF

• 1D: 1.93%
• 1M: -2.56%
• YTD: 1.28%
• 6M: 3.41%
• 1Y: 21.42%
• 3Y*: 6.95%
• 5Y*: 3.17%
• 10Y*: —

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

PSFO vs. CALF - Expense Ratio Comparison

PSFO has a 0.60% expense ratio, which is higher than CALF's 0.59% expense ratio.

PSFO

Pacer Swan SOS Flex (October) ETF

CALF

Pacer US Small Cap Cash Cows 100 ETF

Return for Risk

PSFO vs. CALF — Risk / Return Rank

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

PSFO

PSFO Risk / Return Rank: 65
PSFO Sharpe Ratio Rank: 58
PSFO Sortino Ratio Rank: 62
PSFO Omega Ratio Rank: 68
PSFO Calmar Ratio Rank: 59
PSFO Martin Ratio Rank: 77

CALF

CALF Risk / Return Rank: 59
CALF Sharpe Ratio Rank: 56
CALF Sortino Ratio Rank: 59
CALF Omega Ratio Rank: 60
CALF Calmar Ratio Rank: 56
CALF Martin Ratio Rank: 64

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.

PSFO vs. CALF - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Pacer Swan SOS Flex (October) ETF (PSFO) and Pacer US Small Cap Cash Cows 100 ETF (CALF). 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.

	PSFO	CALF	Difference
Sharpe ratio Return per unit of total volatility	1.04	0.95	+0.10
Sortino ratio Return per unit of downside risk	1.61	1.46	+0.15
Omega ratio Gain probability vs. loss probability	1.25	1.21	+0.04
Calmar ratio Return relative to maximum drawdown	1.51	1.32	+0.20
Martin ratio Return relative to average drawdown	8.25	6.03	+2.22
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

PSFO vs. CALF - Sharpe Ratio Comparison

The current PSFO Sharpe Ratio is 1.04, which is comparable to the CALF Sharpe Ratio of 0.95. The chart below compares the historical Sharpe Ratios of PSFO and CALF, 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

	PSFO	CALF	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.04	0.95	+0.10
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	—	0.13	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.99	0.32	+0.66

Correlation

The correlation between PSFO and CALF is 0.68, 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

PSFO vs. CALF - Dividend Comparison

PSFO has not paid dividends to shareholders, while CALF's dividend yield for the trailing twelve months is around 1.43%.

	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017
PSFO Pacer Swan SOS Flex (October) ETF	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%
CALF Pacer US Small Cap Cash Cows 100 ETF	1.43%	1.43%	1.07%	1.18%	0.85%	2.63%	0.82%	0.99%	1.39%	0.70%

Drawdowns

PSFO vs. CALF - Drawdown Comparison

The maximum PSFO drawdown since its inception was -12.09%, smaller than the maximum CALF drawdown of -47.58%. Use the drawdown chart below to compare losses from any high point for PSFO and CALF.

Drawdown Indicators

	PSFO	CALF	Difference
Max Drawdown Largest peak-to-trough decline	-12.09%	-47.58%	+35.49%
Max Drawdown (1Y) Largest decline over 1 year	-8.55%	-16.47%	+7.92%
Max Drawdown (5Y) Largest decline over 5 years	—	-34.22%	—
Current Drawdown Current decline from peak	-3.39%	-6.40%	+3.01%
Average Drawdown Average peak-to-trough decline	-1.80%	-10.92%	+9.12%
Ulcer Index Depth and duration of drawdowns from previous peaks	1.57%	3.60%	-2.03%

Volatility

PSFO vs. CALF - Volatility Comparison

The current volatility for Pacer Swan SOS Flex (October) ETF (PSFO) is 3.72%, while Pacer US Small Cap Cash Cows 100 ETF (CALF) has a volatility of 4.25%. This indicates that PSFO experiences smaller price fluctuations and is considered to be less risky than CALF based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	PSFO	CALF	Difference
Volatility (1M) Calculated over the trailing 1-month period	3.72%	4.25%	-0.53%
Volatility (6M) Calculated over the trailing 6-month period	5.99%	11.14%	-5.15%
Volatility (1Y) Calculated over the trailing 1-year period	12.00%	22.66%	-10.66%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	10.17%	23.68%	-13.51%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	10.17%	26.18%	-16.01%