ZROZ vs. RVER

Last updated Apr 1, 2026

Compare and contrast key facts about PIMCO 25+ Year Zero Coupon US Treasury Index Fund (ZROZ) and Trenchless Fund ETF (RVER).

ZROZ and RVER are both exchange-traded funds (ETFs), meaning they are traded on stock exchanges and can be bought and sold throughout the day. ZROZ is a passively managed fund by PIMCO that tracks the performance of the BofA Merrill Lynch Long Treasury Principal STRIPS Index. It was launched on Oct 30, 2009. RVER is an actively managed fund by River1. It was launched on Apr 2, 2024.

Performance

ZROZ vs. RVER - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in PIMCO 25+ Year Zero Coupon US Treasury Index Fund (ZROZ) and Trenchless Fund ETF (RVER). The values are adjusted to include any dividend payments, if applicable.

ZROZ vs. RVER - Yearly Performance Comparison

	2026 (YTD)	2025	2024
ZROZ PIMCO 25+ Year Zero Coupon US Treasury Index Fund	-0.37%	-1.84%	-5.87%
RVER Trenchless Fund ETF	-11.21%	5.68%	17.75%

Returns By Period

In the year-to-date period, ZROZ achieves a -0.37% return, which is significantly higher than RVER's -11.21% return.

ZROZ

• 1D: -0.61%
• 1M: -6.35%
• YTD: -0.37%
• 6M: -3.49%
• 1Y: -6.32%
• 3Y*: -8.90%
• 5Y*: -11.00%
• 10Y*: -3.82%

RVER

• 1D: 4.11%
• 1M: -5.96%
• YTD: -11.21%
• 6M: -14.57%
• 1Y: 4.29%
• 3Y*: —
• 5Y*: —
• 10Y*: —

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

ZROZ vs. RVER - Expense Ratio Comparison

ZROZ has a 0.15% expense ratio, which is lower than RVER's 0.65% expense ratio.

RVER

Trenchless Fund ETF

ZROZ

PIMCO 25+ Year Zero Coupon US Treasury Index Fund

Return for Risk

ZROZ vs. RVER — Risk / Return Rank

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

ZROZ

ZROZ Risk / Return Rank: 7
ZROZ Sharpe Ratio Rank: 6
ZROZ Sortino Ratio Rank: 6
ZROZ Omega Ratio Rank: 6
ZROZ Calmar Ratio Rank: 7
ZROZ Martin Ratio Rank: 8

RVER

RVER Risk / Return Rank: 16
RVER Sharpe Ratio Rank: 15
RVER Sortino Ratio Rank: 17
RVER Omega Ratio Rank: 17
RVER Calmar Ratio Rank: 16
RVER Martin Ratio Rank: 16

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.

ZROZ vs. RVER - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for PIMCO 25+ Year Zero Coupon US Treasury Index Fund (ZROZ) and Trenchless Fund ETF (RVER). 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.

	ZROZ	RVER	Difference
Sharpe ratio Return per unit of total volatility	-0.33	0.15	-0.48
Sortino ratio Return per unit of downside risk	-0.34	0.44	-0.78
Omega ratio Gain probability vs. loss probability	0.96	1.06	-0.10
Calmar ratio Return relative to maximum drawdown	-0.30	0.20	-0.50
Martin ratio Return relative to average drawdown	-0.53	0.61	-1.14
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

ZROZ vs. RVER - Sharpe Ratio Comparison

The current ZROZ Sharpe Ratio is -0.33, which is lower than the RVER Sharpe Ratio of 0.15. The chart below compares the historical Sharpe Ratios of ZROZ and RVER, 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

	ZROZ	RVER	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	-0.33	0.15	-0.48
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	-0.46	—	—
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	-0.17	—	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.09	0.20	-0.10

Correlation

The correlation between ZROZ and RVER is 0.08, which is considered to be low. This implies their price changes are not closely related. A low correlation is generally favorable for portfolio diversification, as it helps to reduce overall risk by spreading it across multiple assets with different performance patterns.

Dividends

ZROZ vs. RVER - Dividend Comparison

ZROZ's dividend yield for the trailing twelve months is around 4.98%, more than RVER's 1.92% yield.

	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
ZROZ PIMCO 25+ Year Zero Coupon US Treasury Index Fund	4.98%	4.96%	4.58%	3.52%	2.76%	1.60%	1.68%	2.22%	2.06%	2.53%	3.00%	2.98%
RVER Trenchless Fund ETF	1.92%	1.71%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%

Drawdowns

ZROZ vs. RVER - Drawdown Comparison

The maximum ZROZ drawdown since its inception was -62.93%, which is greater than RVER's maximum drawdown of -26.21%. Use the drawdown chart below to compare losses from any high point for ZROZ and RVER.

Drawdown Indicators

	ZROZ	RVER	Difference
Max Drawdown Largest peak-to-trough decline	-62.93%	-26.21%	-36.72%
Max Drawdown (1Y) Largest decline over 1 year	-15.63%	-21.61%	+5.98%
Max Drawdown (5Y) Largest decline over 5 years	-57.98%	—	—
Max Drawdown (10Y) Largest decline over 10 years	-62.93%	—	—
Current Drawdown Current decline from peak	-59.65%	-18.39%	-41.26%
Average Drawdown Average peak-to-trough decline	-23.66%	-5.72%	-17.94%
Ulcer Index Depth and duration of drawdowns from previous peaks	8.99%	7.01%	+1.98%

Volatility

ZROZ vs. RVER - Volatility Comparison

The current volatility for PIMCO 25+ Year Zero Coupon US Treasury Index Fund (ZROZ) is 5.79%, while Trenchless Fund ETF (RVER) has a volatility of 8.51%. This indicates that ZROZ experiences smaller price fluctuations and is considered to be less risky than RVER based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	ZROZ	RVER	Difference
Volatility (1M) Calculated over the trailing 1-month period	5.79%	8.51%	-2.72%
Volatility (6M) Calculated over the trailing 6-month period	10.85%	17.04%	-6.19%
Volatility (1Y) Calculated over the trailing 1-year period	19.16%	28.27%	-9.11%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	23.93%	26.29%	-2.36%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	22.09%	26.29%	-4.20%