PSFO vs. IVVB

Last updated Apr 1, 2026

Compare and contrast key facts about Pacer Swan SOS Flex (October) ETF (PSFO) and iShares Large Cap Deep Buffer ETF (IVVB).

PSFO and IVVB 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. IVVB is an actively managed fund by iShares. It was launched on Jun 28, 2023.

Performance

PSFO vs. IVVB - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Pacer Swan SOS Flex (October) ETF (PSFO) and iShares Large Cap Deep Buffer ETF (IVVB). The values are adjusted to include any dividend payments, if applicable.

PSFO vs. IVVB - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023
PSFO Pacer Swan SOS Flex (October) ETF	-2.20%	12.93%	10.78%	5.64%
IVVB iShares Large Cap Deep Buffer ETF	-3.11%	9.60%	18.66%	2.60%

Returns By Period

In the year-to-date period, PSFO achieves a -2.20% return, which is significantly higher than IVVB's -3.11% return.

PSFO

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

IVVB

• 1D: 1.06%
• 1M: -3.96%
• YTD: -3.11%
• 6M: -0.88%
• 1Y: 10.61%
• 3Y*: —
• 5Y*: —
• 10Y*: —

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

PSFO vs. IVVB - Expense Ratio Comparison

PSFO has a 0.60% expense ratio, which is higher than IVVB's 0.50% expense ratio.

PSFO

Pacer Swan SOS Flex (October) ETF

IVVB

iShares Large Cap Deep Buffer ETF

Return for Risk

PSFO vs. IVVB — 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

IVVB

IVVB Risk / Return Rank: 63
IVVB Sharpe Ratio Rank: 59
IVVB Sortino Ratio Rank: 60
IVVB Omega Ratio Rank: 62
IVVB Calmar Ratio Rank: 64
IVVB Martin Ratio Rank: 72

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. IVVB - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Pacer Swan SOS Flex (October) ETF (PSFO) and iShares Large Cap Deep Buffer ETF (IVVB). 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	IVVB	Difference
Sharpe ratio Return per unit of total volatility	1.04	1.00	+0.04
Sortino ratio Return per unit of downside risk	1.61	1.49	+0.12
Omega ratio Gain probability vs. loss probability	1.25	1.22	+0.03
Calmar ratio Return relative to maximum drawdown	1.51	1.57	-0.05
Martin ratio Return relative to average drawdown	8.25	7.14	+1.12
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. IVVB - Sharpe Ratio Comparison

The current PSFO Sharpe Ratio is 1.04, which is comparable to the IVVB Sharpe Ratio of 1.00. The chart below compares the historical Sharpe Ratios of PSFO and IVVB, 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	IVVB	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.04	1.00	+0.04
Sharpe Ratio (All Time) Calculated using the full available price history	0.99	1.04	-0.05

Correlation

The correlation between PSFO and IVVB is 0.85, 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

PSFO vs. IVVB - Dividend Comparison

PSFO has not paid dividends to shareholders, while IVVB's dividend yield for the trailing twelve months is around 1.26%.

	TTM	2025	2024
PSFO Pacer Swan SOS Flex (October) ETF	0.00%	0.00%	0.00%
IVVB iShares Large Cap Deep Buffer ETF	1.26%	1.22%	0.87%

Drawdowns

PSFO vs. IVVB - Drawdown Comparison

The maximum PSFO drawdown since its inception was -12.09%, smaller than the maximum IVVB drawdown of -13.08%. Use the drawdown chart below to compare losses from any high point for PSFO and IVVB.

Drawdown Indicators

	PSFO	IVVB	Difference
Max Drawdown Largest peak-to-trough decline	-12.09%	-13.08%	+0.99%
Max Drawdown (1Y) Largest decline over 1 year	-8.55%	-6.90%	-1.65%
Current Drawdown Current decline from peak	-3.39%	-4.75%	+1.36%
Average Drawdown Average peak-to-trough decline	-1.80%	-1.66%	-0.14%
Ulcer Index Depth and duration of drawdowns from previous peaks	1.57%	1.51%	+0.06%

Volatility

PSFO vs. IVVB - Volatility Comparison

Pacer Swan SOS Flex (October) ETF (PSFO) has a higher volatility of 3.72% compared to iShares Large Cap Deep Buffer ETF (IVVB) at 2.68%. This indicates that PSFO's price experiences larger fluctuations and is considered to be riskier than IVVB based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	PSFO	IVVB	Difference
Volatility (1M) Calculated over the trailing 1-month period	3.72%	2.68%	+1.04%
Volatility (6M) Calculated over the trailing 6-month period	5.99%	6.26%	-0.27%
Volatility (1Y) Calculated over the trailing 1-year period	12.00%	10.63%	+1.37%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	10.17%	9.47%	+0.70%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	10.17%	9.47%	+0.70%