PST vs. TBX

Last updated Jun 4, 2026

PST (ProShares UltraShort 7-10 Year Treasury) and TBX (ProShares Short 7-10 Year Treasury) are both Inverse Bonds funds from ProShares - PST tracks the ICE U.S. Treasury 7-10 Year Bond Index while TBX tracks the ICE BofA US Treasury (7-10 Y) (-100%). Both are passively managed. Over the past 10 years, PST returned 2.47%/yr vs 1.97%/yr for TBX. Their correlation of 0.89 suggests significant overlap in exposure. Both charge a 0.95% expense ratio.

Performance

PST vs. TBX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in ProShares UltraShort 7-10 Year Treasury (PST) and ProShares Short 7-10 Year Treasury (TBX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, PST achieves a 4.57% return, which is significantly higher than TBX's 3.03% return. Over the past 10 years, PST has outperformed TBX with an annualized return of 2.47%, while TBX has yielded a comparatively lower 1.97% annualized return.

PST

• 1D: 0.51%
• 1M: 0.80%
• YTD: 4.57%
• 6M: 6.73%
• 1Y: 1.08%
• 3Y*: 5.59%
• 5Y*: 9.21%
• 10Y*: 2.47%

TBX

• 1D: 0.26%
• 1M: 0.55%
• YTD: 3.03%
• 6M: 4.03%
• 1Y: 2.10%
• 3Y*: 4.79%
• 5Y*: 5.98%
• 10Y*: 1.97%

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

PST vs. TBX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
PST ProShares UltraShort 7-10 Year Treasury	4.57%	-4.42%	12.27%	3.17%	38.55%	4.01%	-18.67%	-11.03%	1.72%	-4.52%
TBX ProShares Short 7-10 Year Treasury	3.03%	-1.15%	8.52%	3.99%	18.31%	1.70%	-9.96%	-5.20%	1.25%	-2.61%

Correlation

The correlation between PST and TBX is 0.97 - these two move nearly in lockstep. At this level, holding both provides almost no diversification benefit. If you already own one, adding the other does little to reduce portfolio risk.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.97
Correlation (3Y) Calculated over the trailing 3-year period	0.91
Correlation (5Y) Calculated over the trailing 5-year period	0.94
Correlation (10Y) Calculated over the trailing 10-year period	0.93
Correlation (All Time) Calculated using the full available price history since Apr 6, 2011	0.89

The correlation between PST and TBX has been stable across timeframes, ranging from 0.89 to 0.97 - a consistent structural relationship.

PST vs. TBX - Sectors Allocation Comparison

Sectors	PST	TBX
Financial Services	69.6%	55.0%
Basic Materials	-	-
Communication Services	-	-
Consumer Cyclical	-	-
Consumer Defensive	-	-
Energy	-	-
Healthcare	-	-
Industrials	-	-
Real Estate	-	-
Technology	-	-
Utilities	-	-

Return for Risk

PST vs. TBX — Risk / Return Rank

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

PST

PST Risk / Return Rank: 10
PST Sharpe Ratio Rank: 10
PST Sortino Ratio Rank: 9
PST Omega Ratio Rank: 9
PST Calmar Ratio Rank: 10
PST Martin Ratio Rank: 10

TBX

TBX Risk / Return Rank: 14
TBX Sharpe Ratio Rank: 15
TBX Sortino Ratio Rank: 13
TBX Omega Ratio Rank: 13
TBX Calmar Ratio Rank: 16
TBX Martin Ratio Rank: 14

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.

PST vs. TBX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for ProShares UltraShort 7-10 Year Treasury (PST) and ProShares Short 7-10 Year Treasury (TBX). 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.

	PST	TBX	Difference
Sharpe ratio: Return per unit of total volatility	0.11	0.42	-0.31
Sortino ratio: Return per unit of downside risk	0.23	0.62	-0.40
Omega ratio: Gain probability vs. loss probability	1.03	1.07	-0.05
Calmar ratio: Return relative to maximum drawdown	0.15	0.62	-0.47
Martin ratio: Return relative to average drawdown	0.26	1.17	-0.91
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

PST vs. TBX - Sharpe Ratio Comparison

The current PST Sharpe Ratio is 0.11, which is lower than the TBX Sharpe Ratio of 0.42. The chart below compares the historical Sharpe Ratios of PST and TBX, 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

	PST	TBX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	0.11	0.42	-0.31
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.59	0.71	-0.12
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.19	0.28	-0.09
Sharpe Ratio (All Time) Calculated using the full available price history	-0.37	-0.16	-0.22

Drawdowns

PST vs. TBX - Drawdown Comparison

The maximum PST drawdown since its inception was -79.25%, which is greater than TBX's maximum drawdown of -41.04%. Use the drawdown chart below to compare losses from any high point for PST and TBX.

Drawdown Indicators

	PST	TBX	Difference
Max Drawdown Largest peak-to-trough decline	-79.25%	-41.04%	-38.21%
Max Drawdown (1Y) Largest decline over 1 year	-7.25%	-3.39%	-3.86%
Max Drawdown (3Y) Largest decline over 3 years	-16.19%	-7.77%	-8.42%
Max Drawdown (5Y) Largest decline over 5 years	-16.19%	-7.77%	-8.42%
Max Drawdown (10Y) Largest decline over 10 years	-36.07%	-19.46%	-16.61%
Current Drawdown Current decline from peak	-64.13%	-17.13%	-47.00%
Average Drawdown Average peak-to-trough decline	-61.48%	-26.64%	-34.84%
Ulcer Index Depth and duration of drawdowns from previous peaks	4.16%	1.80%	+2.36%

Volatility

PST vs. TBX - Volatility Comparison

ProShares UltraShort 7-10 Year Treasury (PST) has a higher volatility of 3.19% compared to ProShares Short 7-10 Year Treasury (TBX) at 1.68%. This indicates that PST's price experiences larger fluctuations and is considered to be riskier than TBX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	PST	TBX	Difference
Volatility (1M) Calculated over the trailing 1-month period	3.19%	1.68%	+1.51%
Volatility (6M) Calculated over the trailing 6-month period	6.75%	3.39%	+3.36%
Volatility (1Y) Calculated over the trailing 1-year period	9.62%	4.97%	+4.65%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	15.60%	8.44%	+7.16%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	13.32%	7.14%	+6.18%

PST vs. TBX - Expense Ratio Comparison

Both PST and TBX have an expense ratio of 0.95%.

Dividends

PST vs. TBX - Dividend Comparison

PST's dividend yield for the trailing twelve months is around 3.08%, more than TBX's 3.04% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018
PST ProShares UltraShort 7-10 Year Treasury	3.08%	3.47%	3.61%	3.69%	0.02%	0.00%	0.11%	1.85%	0.66%
TBX ProShares Short 7-10 Year Treasury	3.04%	3.45%	6.58%	4.07%	0.40%	0.00%	0.10%	1.53%	0.72%

Frequently Asked Questions

Can I hold both PST and TBX in my portfolio?

With a correlation of 0.97, PST and TBX move almost identically. Holding both adds very little diversification - you're essentially doubling your position in the same market segment. Choosing one is usually more capital-efficient.

Which is riskier, PST or TBX?

PST has higher volatility (3.19%) compared to TBX (1.68%). In terms of maximum drawdown, PST dropped -79.25% vs TBX's -41.04%.

Which ETF is better, PST or TBX?

On 10-year performance, PST leads with 2.47% vs 1.97% for TBX. Both ETFs have the same 0.95% expense ratio. On volatility, TBX has been the lower-risk option at 1.68%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, PST or TBX?

Over the 10-year period, PST has performed better with a 2.47% return vs 1.97%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, PST or TBX?

PST and TBX have the same expense ratio: 0.95% per year.

Which ETF pays a higher dividend yield, PST or TBX?

PST has the higher dividend yield at 3.08%, compared with 3.04% for TBX.

What is the main difference between PST and TBX?

PST tracks ICE U.S. Treasury 7-10 Year Bond Index, while TBX tracks ICE BofA US Treasury (7-10 Y) (-100%).

Which has better risk-adjusted returns?

TBX currently has the higher Sharpe Ratio (0.42 vs 0.11), 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.