PFIX vs. VOO

Last updated Jun 4, 2026

PFIX (Simplify Interest Rate Hedge ETF) and VOO (Vanguard S&P 500 ETF) are both exchange-traded funds - PFIX is a Hedge Fund fund actively managed by Simplify, while VOO is a S&P 500 fund tracking the S&P 500 Index. PFIX is actively managed, while VOO is passively managed. Over the past 5 years, PFIX returned 16.86%/yr vs 13.90%/yr for VOO. At a correlation of -0.10, they often move in opposite directions. PFIX charges 0.50%/yr vs 0.03%/yr for VOO.

Performance

PFIX vs. VOO - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Simplify Interest Rate Hedge ETF (PFIX) and Vanguard S&P 500 ETF (VOO). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, PFIX achieves a -2.55% return, which is significantly lower than VOO's 10.91% return.

PFIX

• 1D: 0.36%
• 1M: -3.76%
• YTD: -2.55%
• 6M: 1.53%
• 1Y: -15.57%
• 3Y*: 14.54%
• 5Y*: 16.86%
• 10Y*: —

VOO

• 1D: -0.70%
• 1M: 5.04%
• YTD: 10.91%
• 6M: 10.93%
• 1Y: 28.04%
• 3Y*: 22.44%
• 5Y*: 13.90%
• 10Y*: 15.56%

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

PFIX vs. VOO - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021
PFIX Simplify Interest Rate Hedge ETF	-2.55%	0.42%	35.94%	5.67%	92.05%	-24.95%
VOO Vanguard S&P 500 ETF	10.91%	17.82%	24.98%	26.32%	-18.17%	15.82%

Correlation

The correlation between PFIX and VOO is -0.23, meaning they tend to move in opposite directions. This is especially valuable for risk management - when one declines, the other has historically tended to hold steady or rise.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	-0.23
Correlation (3Y) Calculated over the trailing 3-year period	-0.17
Correlation (5Y) Calculated over the trailing 5-year period	-0.09
Correlation (All Time) Calculated using the full available price history since May 12, 2021	-0.10

The correlation between PFIX and VOO shifts across timeframes, from -0.23 (1 year) to -0.09 (5 years), reflecting how their relationship changes across market environments.

PFIX vs. VOO - Sectors Allocation Comparison

Sectors	PFIX	VOO
Financial Services	32.2%	11.6%
Basic Materials	-	1.8%
Communication Services	-	11.3%
Consumer Cyclical	-	10.2%
Consumer Defensive	-	4.9%
Energy	-	3.5%
Healthcare	-	8.5%
Industrials	-	8.3%
Real Estate	-	1.9%
Technology	-	35.7%
Utilities	-	2.4%

Return for Risk

PFIX vs. VOO — Risk / Return Rank

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

PFIX

PFIX Risk / Return Rank: 4
PFIX Sharpe Ratio Rank: 4
PFIX Sortino Ratio Rank: 4
PFIX Omega Ratio Rank: 4
PFIX Calmar Ratio Rank: 4
PFIX Martin Ratio Rank: 4

VOO

VOO Risk / Return Rank: 70
VOO Sharpe Ratio Rank: 71
VOO Sortino Ratio Rank: 70
VOO Omega Ratio Rank: 70
VOO Calmar Ratio Rank: 62
VOO Martin Ratio Rank: 75

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.

PFIX vs. VOO - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Simplify Interest Rate Hedge ETF (PFIX) and Vanguard S&P 500 ETF (VOO). 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.

	PFIX	VOO	Difference
Sharpe ratio: Return per unit of total volatility	-0.52	2.39	-2.90
Sortino ratio: Return per unit of downside risk	-0.58	3.25	-3.84
Omega ratio: Gain probability vs. loss probability	0.93	1.43	-0.50
Calmar ratio: Return relative to maximum drawdown	-0.61	3.16	-3.77
Martin ratio: Return relative to average drawdown	-0.96	14.73	-15.68
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

PFIX vs. VOO - Sharpe Ratio Comparison

The current PFIX Sharpe Ratio is -0.52, which is lower than the VOO Sharpe Ratio of 2.39. The chart below compares the historical Sharpe Ratios of PFIX and VOO, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Sharpe Ratios by Period

	PFIX	VOO	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	-0.52	2.39	-2.90
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.44	0.83	-0.39
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	—	0.87	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.39	0.89	-0.50

Drawdowns

PFIX vs. VOO - Drawdown Comparison

The maximum PFIX drawdown since its inception was -36.17%, which is greater than VOO's maximum drawdown of -33.99%. Use the drawdown chart below to compare losses from any high point for PFIX and VOO.

Drawdown Indicators

	PFIX	VOO	Difference
Max Drawdown Largest peak-to-trough decline	-36.17%	-33.99%	-2.18%
Max Drawdown (1Y) Largest decline over 1 year	-25.64%	-8.90%	-16.74%
Max Drawdown (3Y) Largest decline over 3 years	-36.17%	-18.69%	-17.48%
Max Drawdown (5Y) Largest decline over 5 years	-36.17%	-24.52%	-11.65%
Max Drawdown (10Y) Largest decline over 10 years	—	-33.99%	—
Current Drawdown Current decline from peak	-19.65%	-0.70%	-18.95%
Average Drawdown Average peak-to-trough decline	-17.13%	-3.69%	-13.44%
Ulcer Index Depth and duration of drawdowns from previous peaks	16.35%	1.91%	+14.44%

Volatility

PFIX vs. VOO - Volatility Comparison

Simplify Interest Rate Hedge ETF (PFIX) has a higher volatility of 7.51% compared to Vanguard S&P 500 ETF (VOO) at 2.84%. This indicates that PFIX's price experiences larger fluctuations and is considered to be riskier than VOO based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	PFIX	VOO	Difference
Volatility (1M) Calculated over the trailing 1-month period	7.51%	2.84%	+4.67%
Volatility (6M) Calculated over the trailing 6-month period	20.89%	8.90%	+11.99%
Volatility (1Y) Calculated over the trailing 1-year period	30.32%	11.80%	+18.52%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	38.50%	16.81%	+21.69%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	38.35%	18.01%	+20.34%

PFIX vs. VOO - Expense Ratio Comparison

PFIX has a 0.50% expense ratio, which is higher than VOO's 0.03% expense ratio.

Dividends

PFIX vs. VOO - Dividend Comparison

PFIX's dividend yield for the trailing twelve months is around 9.96%, more than VOO's 1.03% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
PFIX Simplify Interest Rate Hedge ETF	9.96%	9.92%	3.40%	87.92%	0.63%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%
VOO Vanguard S&P 500 ETF	1.03%	1.13%	1.24%	1.46%	1.69%	1.25%	1.54%	1.88%	2.06%	1.78%	2.02%	2.10%

Frequently Asked Questions

Can I hold both PFIX and VOO in my portfolio?

PFIX and VOO have a correlation of -0.23, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, PFIX or VOO?

PFIX has higher volatility (7.51%) compared to VOO (2.84%). In terms of maximum drawdown, PFIX dropped -36.17% vs VOO's -33.99%.

Which ETF is better, PFIX or VOO?

On 5-year performance, PFIX leads with 16.86% vs 13.90% for VOO. On fees, VOO is cheaper at 0.03% per year. On volatility, VOO has been the lower-risk option at 2.84%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, PFIX or VOO?

Over the 5-year period, PFIX has performed better with a 16.86% return vs 13.90%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, PFIX or VOO?

VOO is cheaper with a 0.03% expense ratio, compared with 0.50% for PFIX.

Which ETF pays a higher dividend yield, PFIX or VOO?

PFIX has the higher dividend yield at 9.96%, compared with 1.03% for VOO.

What is the main difference between PFIX and VOO?

PFIX is categorized as Hedge Fund, while VOO is S&P 500. They also come from different issuers: Simplify and Vanguard. Their fees differ too: 0.50% for PFIX and 0.03% for VOO.

Which has better risk-adjusted returns?

VOO currently has the higher Sharpe Ratio (2.39 vs -0.52), meaning it's delivered slightly more return per unit of risk over the trailing 12 months. However, this ranking shifts over time - use the Risk/Return Score above for a more comprehensive view that combines Sharpe, Sortino, and other measures used by quantitative funds.