PFIX vs. VOO
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 17.72%/yr vs 13.13%/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
Loading charts...
Returns By Period
In the year-to-date period, PFIX achieves a -6.98% return, which is significantly lower than VOO's 8.19% return.
PFIX
- 1D
- -0.61%
- 1M
- -11.02%
- YTD
- -6.98%
- 6M
- -6.81%
- 1Y
- -12.36%
- 3Y*
- 15.87%
- 5Y*
- 17.72%
- 10Y*
- —
VOO
- 1D
- -1.42%
- 1M
- -1.34%
- YTD
- 8.19%
- 6M
- 7.24%
- 1Y
- 23.69%
- 3Y*
- 20.78%
- 5Y*
- 13.13%
- 10Y*
- 15.61%
PFIX vs. VOO - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | |
|---|---|---|---|---|---|---|
PFIX Simplify Interest Rate Hedge ETF | -6.98% | 0.42% | 35.94% | 5.67% | 92.05% | -24.98% |
VOO Vanguard S&P 500 ETF | 8.19% | 17.82% | 24.98% | 26.32% | -18.17% | 14.80% |
Correlation
The correlation between PFIX and VOO is -0.25, 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 | -0.25 |
Correlation (3Y) Calculated over the trailing 3-year period | -0.17 |
Correlation (5Y) Calculated over the trailing 5-year period | -0.10 |
Correlation (All Time) Calculated using the full available price history since May 11, 2021 | -0.10 |
The correlation between PFIX and VOO shifts across timeframes, from -0.25 (1 year) to -0.10 (all time), reflecting how their relationship changes across market environments.
Compare stocks, funds, or ETFs
Search for stocks, ETFs, and funds for a quick comparison or use the comparison tool for more options.
Return for Risk
PFIX vs. VOO — Risk / Return Rank
PFIX
VOO
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.
Values are calculated on a 1-year rolling basis and updated daily. Risk-adjusted metrics are more stable over longer periods — use the period switch above to explore them.
| PFIX | VOO | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -2.34 | ||
| Sortino ratioReturn per unit of downside risk | -3.05 | ||
| Omega ratioGain probability vs. loss probability | 0.95 | 1.35 | -0.40 |
| Calmar ratioReturn relative to maximum drawdown | -0.48 | 2.67 | -3.16 |
| Martin ratioReturn relative to average drawdown | -0.74 | 11.96 | -12.70 |
Loading charts...
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.
Loading charts...
Drawdown Indicators
| PFIX | VOO | Difference | |
|---|---|---|---|
Max DrawdownLargest 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 DrawdownCurrent decline from peak | -23.31% | -3.14% | -20.17% |
Average DrawdownAverage peak-to-trough decline | -17.15% | -3.68% | -13.47% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 16.70% | 1.99% | +14.71% |
Volatility
PFIX vs. VOO - Volatility Comparison
Simplify Interest Rate Hedge ETF (PFIX) has a higher volatility of 6.85% compared to Vanguard S&P 500 ETF (VOO) at 4.83%. 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.
Loading charts...
Volatility by Period
| PFIX | VOO | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 6.85% | 4.83% | +2.02% |
Volatility (6M)Calculated over the trailing 6-month period | 21.31% | 9.82% | +11.49% |
Volatility (1Y)Calculated over the trailing 1-year period | 29.19% | 12.46% | +16.73% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 38.46% | 16.91% | +21.55% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 38.23% | 18.02% | +20.21% |
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 10.44%, more than VOO's 1.05% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
PFIX Simplify Interest Rate Hedge ETF | 10.44% | 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 | 1.05% | 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
PFIX and VOO have a correlation of -0.25, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
PFIX has higher volatility (6.85%) compared to VOO (4.83%). In terms of maximum drawdown, PFIX dropped -36.17% vs VOO's -33.99%.
On 5-year performance, PFIX leads with 17.72% vs 13.13% for VOO. On fees, VOO is cheaper at 0.03% per year. On volatility, VOO has been the lower-risk option at 4.83%. The better choice depends on whether you care most about return, fees, risk, or income.
Over the 5-year period, PFIX has performed better with a 17.72% return vs 13.13%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.
VOO is cheaper with a 0.03% expense ratio, compared with 0.50% for PFIX.
PFIX has the higher dividend yield at 10.44%, compared with 1.05% for 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.
VOO currently has the higher Sharpe Ratio (1.91 vs -0.43), 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.
Find the right allocation for PFIX and VOO
Add both to a portfolio and optimize allocations for your target — whether that's maximizing returns, minimizing drawdowns, or balancing risk across holdings.
Open Portfolio Optimizer