PSFO vs. TLTW

Last updated Apr 1, 2026

Compare and contrast key facts about Pacer Swan SOS Flex (October) ETF (PSFO) and iShares 20+ Year Treasury Bond BuyWrite Strategy ETF (TLTW).

PSFO and TLTW 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. TLTW is a passively managed fund by iShares that tracks the performance of the CBOE TLT 2% OTM Buywrite Index (USD). It was launched on Jun 18, 2022.

Performance

PSFO vs. TLTW - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Pacer Swan SOS Flex (October) ETF (PSFO) and iShares 20+ Year Treasury Bond BuyWrite Strategy ETF (TLTW). The values are adjusted to include any dividend payments, if applicable.

PSFO vs. TLTW - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022
PSFO Pacer Swan SOS Flex (October) ETF	-2.20%	12.93%	10.78%	20.03%	5.71%
TLTW iShares 20+ Year Treasury Bond BuyWrite Strategy ETF	1.44%	11.36%	-2.18%	0.73%	-11.09%

Returns By Period

In the year-to-date period, PSFO achieves a -2.20% return, which is significantly lower than TLTW's 1.44% return.

PSFO

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

TLTW

• 1D: 0.22%
• 1M: -2.98%
• YTD: 1.44%
• 6M: 2.22%
• 1Y: 7.46%
• 3Y*: 0.70%
• 5Y*: —
• 10Y*: —

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

PSFO vs. TLTW - Expense Ratio Comparison

PSFO has a 0.60% expense ratio, which is higher than TLTW's 0.35% expense ratio.

PSFO

Pacer Swan SOS Flex (October) ETF

TLTW

iShares 20+ Year Treasury Bond BuyWrite Strategy ETF

Return for Risk

PSFO vs. TLTW — 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

TLTW

TLTW Risk / Return Rank: 48
TLTW Sharpe Ratio Rank: 50
TLTW Sortino Ratio Rank: 45
TLTW Omega Ratio Rank: 42
TLTW Calmar Ratio Rank: 61
TLTW Martin Ratio Rank: 42

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. TLTW - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Pacer Swan SOS Flex (October) ETF (PSFO) and iShares 20+ Year Treasury Bond BuyWrite Strategy ETF (TLTW). 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	TLTW	Difference
Sharpe ratio Return per unit of total volatility	1.04	0.84	+0.20
Sortino ratio Return per unit of downside risk	1.61	1.17	+0.44
Omega ratio Gain probability vs. loss probability	1.25	1.15	+0.10
Calmar ratio Return relative to maximum drawdown	1.51	1.42	+0.09
Martin ratio Return relative to average drawdown	8.25	3.74	+4.52
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. TLTW - Sharpe Ratio Comparison

The current PSFO Sharpe Ratio is 1.04, which is comparable to the TLTW Sharpe Ratio of 0.84. The chart below compares the historical Sharpe Ratios of PSFO and TLTW, 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	TLTW	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.04	0.84	+0.20
Sharpe Ratio (All Time) Calculated using the full available price history	0.99	-0.03	+1.01

Correlation

The correlation between PSFO and TLTW is 0.15, 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

PSFO vs. TLTW - Dividend Comparison

PSFO has not paid dividends to shareholders, while TLTW's dividend yield for the trailing twelve months is around 13.66%.

	TTM	2025	2024	2023	2022
PSFO Pacer Swan SOS Flex (October) ETF	0.00%	0.00%	0.00%	0.00%	0.00%
TLTW iShares 20+ Year Treasury Bond BuyWrite Strategy ETF	13.66%	14.82%	14.47%	19.59%	8.71%

Drawdowns

PSFO vs. TLTW - Drawdown Comparison

The maximum PSFO drawdown since its inception was -12.09%, smaller than the maximum TLTW drawdown of -18.61%. Use the drawdown chart below to compare losses from any high point for PSFO and TLTW.

Drawdown Indicators

	PSFO	TLTW	Difference
Max Drawdown Largest peak-to-trough decline	-12.09%	-18.61%	+6.52%
Max Drawdown (1Y) Largest decline over 1 year	-8.55%	-5.80%	-2.75%
Current Drawdown Current decline from peak	-3.39%	-2.98%	-0.41%
Average Drawdown Average peak-to-trough decline	-1.80%	-8.49%	+6.69%
Ulcer Index Depth and duration of drawdowns from previous peaks	1.57%	2.20%	-0.63%

Volatility

PSFO vs. TLTW - Volatility Comparison

Pacer Swan SOS Flex (October) ETF (PSFO) has a higher volatility of 3.72% compared to iShares 20+ Year Treasury Bond BuyWrite Strategy ETF (TLTW) at 3.46%. This indicates that PSFO's price experiences larger fluctuations and is considered to be riskier than TLTW based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	PSFO	TLTW	Difference
Volatility (1M) Calculated over the trailing 1-month period	3.72%	3.46%	+0.26%
Volatility (6M) Calculated over the trailing 6-month period	5.99%	5.80%	+0.19%
Volatility (1Y) Calculated over the trailing 1-year period	12.00%	8.91%	+3.09%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	10.17%	11.55%	-1.38%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	10.17%	11.55%	-1.38%