PST vs. PFIX
PST (ProShares UltraShort 7-10 Year Treasury) and PFIX (Simplify Interest Rate Hedge ETF) are both Inverse Bonds funds. PST is passively managed, while PFIX is actively managed. Over the past 5 years, PST returned 11.11%/yr vs 23.20%/yr for PFIX. Their 0.76 correlation means they have sometimes moved together and sometimes differently. PST charges 0.95%/yr vs 0.50%/yr for PFIX.
Performance
PST vs. PFIX - Performance Comparison
Loading charts...
Returns By Period
In the year-to-date period, PST achieves a 7.74% return, which is significantly lower than PFIX's 10.66% return.
PST
- 1D
- 0.55%
- 1M
- 3.24%
- 6M
- 6.90%
- YTD
- 7.74%
- 1Y
- 7.92%
- 3Y*
- 4.59%
- 5Y*
- 11.11%
- 10Y*
- 3.13%
- ALL TIME*
- -4.97%
PFIX
- 1D
- 3.06%
- 1M
- 17.72%
- 6M
- 11.49%
- YTD
- 10.66%
- 1Y
- 7.25%
- 3Y*
- 17.57%
- 5Y*
- 23.20%
- 10Y*
- —
- ALL TIME*
- 17.29%
Liquidity Comparison
| Position | Avg. Volume Value (2W) | Avg. Volume Value (1M) | Avg. Volume Value (3M) |
|---|---|---|---|
| $6.29M | $5.62M | $16.95M | |
| $115.25K | $150.97K | $186.50K |
PST vs. PFIX - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | |
|---|---|---|---|---|---|---|
PST ProShares UltraShort 7-10 Year Treasury | 7.74% | -4.42% | 12.27% | 3.17% | 38.55% | -4.34% |
PFIX Simplify Interest Rate Hedge ETF | 10.66% | 0.42% | 35.94% | 5.67% | 92.05% | -24.98% |
Correlation
The correlation between PST and PFIX is 0.62, which is moderate. They have sometimes moved together and sometimes differently, sharing some price drivers without tracking each other closely.
| Correlation | |
|---|---|
Correlation (1Y) Focuses on recent behavior, but can change the most. | 0.62 |
Correlation (3Y) Balances recent behavior with more history. | 0.79 |
Correlation (5Y) Shows whether the relationship held over a longer period. | 0.76 |
Correlation (All Time) Calculated using the full available price history since May 11, 2021 | 0.76 |
The correlation between PST and PFIX shifts across timeframes, from 0.62 (1 year) to 0.79 (3 years), 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
PST vs. PFIX — Risk / Return Rank
PST
PFIX
PST vs. PFIX - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for ProShares UltraShort 7-10 Year Treasury (PST) and Simplify Interest Rate Hedge ETF (PFIX). 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.
| PST | PFIX | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | +0.51 | ||
| Sortino ratioReturn per unit of downside risk | +0.56 | ||
| Omega ratioGain probability vs. loss probability | 1.10 | 1.04 | +0.07 |
| Calmar ratioReturn relative to maximum drawdown | 1.17 | 0.10 | +1.07 |
| Martin ratioReturn relative to average drawdown | 2.40 | 0.15 | +2.25 |
Loading charts...
Drawdowns
PST vs. PFIX - Drawdown Comparison
The maximum PST drawdown since its inception was -79.25%, which is greater than PFIX's maximum drawdown of -36.17%. Use the drawdown chart below to compare losses from any high point for PST and PFIX.
Loading charts...
Drawdown Indicators
| PST | PFIX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -79.25% | -36.17% | -43.08% |
Max Drawdown (1Y)Largest decline over 1 year | -4.73% | -23.71% | +18.98% |
Max Drawdown (3Y)Largest decline over 3 years | -16.19% | -36.17% | +19.98% |
Max Drawdown (5Y)Largest decline over 5 years | -16.19% | -36.17% | +19.98% |
Max Drawdown (10Y)Largest decline over 10 years | -36.07% | — | — |
Current DrawdownCurrent decline from peak | -63.04% | -8.76% | -54.28% |
Average DrawdownAverage peak-to-trough decline | -61.49% | -17.19% | -44.30% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 2.73% | 15.42% | -12.69% |
Volatility
PST vs. PFIX - Volatility Comparison
The current volatility for ProShares UltraShort 7-10 Year Treasury (PST) is 2.53%, while Simplify Interest Rate Hedge ETF (PFIX) has a volatility of 7.75%. This indicates that PST experiences smaller price fluctuations and is considered to be less risky than PFIX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
Loading charts...
Volatility by Period
| PST | PFIX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 2.53% | 7.75% | -5.22% |
Volatility (6M)Calculated over the trailing 6-month period | 7.32% | 21.92% | -14.60% |
Volatility (1Y)Calculated over the trailing 1-year period | 9.39% | 29.31% | -19.92% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 15.56% | 38.61% | -23.05% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 13.29% | 38.13% | -24.84% |
PST vs. PFIX - Expense Ratio Comparison
PST has a 0.95% expense ratio, which is higher than PFIX's 0.50% expense ratio.
Dividends
PST vs. PFIX - Dividend Comparison
PST's dividend yield for the trailing twelve months is around 2.78%, less than PFIX's 7.82% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 |
|---|---|---|---|---|---|---|---|---|---|
PFIX Simplify Interest Rate Hedge ETF | 7.82% | 9.92% | 3.40% | 87.92% | 0.63% | 0.00% | 0.00% | 0.00% | 0.00% |
PST ProShares UltraShort 7-10 Year Treasury | 2.78% | 3.47% | 3.61% | 3.69% | 0.02% | 0.00% | 0.11% | 1.85% | 0.66% |
Frequently Asked Questions
PST and PFIX have a correlation of 0.62, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
PFIX has higher volatility (7.75%) compared to PST (2.53%). In terms of maximum drawdown, PST dropped -79.25% vs PFIX's -36.17%.
On 5-year performance, PFIX leads with 23.20% vs 11.11% for PST. On fees, PFIX is cheaper at 0.50% per year. On volatility, PST has been the lower-risk option at 2.53%. 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 23.20% return vs 11.11%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.
PFIX is cheaper with a 0.50% expense ratio, compared with 0.95% for PST.
PFIX has the higher dividend yield at 7.82%, compared with 2.78% for PST.
They also come from different issuers: ProShares and Simplify. Their fees differ too: 0.95% for PST and 0.50% for PFIX.
PST currently has the higher Sharpe Ratio (0.59 vs 0.08), 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 PST and PFIX
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