RFIX vs. BUCK

Last updated Apr 1, 2026

Compare and contrast key facts about Simplify Bond Bull ETF (RFIX) and Simplify Stable Income ETF (BUCK).

RFIX and BUCK are both exchange-traded funds (ETFs), meaning they are traded on stock exchanges and can be bought and sold throughout the day. RFIX is an actively managed fund by Simplify. It was launched on Dec 9, 2024. BUCK is an actively managed fund by Simplify. It was launched on Oct 27, 2022.

Performance

RFIX vs. BUCK - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Simplify Bond Bull ETF (RFIX) and Simplify Stable Income ETF (BUCK). The values are adjusted to include any dividend payments, if applicable.

RFIX vs. BUCK - Yearly Performance Comparison

	2026 (YTD)	2025	2024
RFIX Simplify Bond Bull ETF	12.33%	-28.43%	-12.32%
BUCK Simplify Stable Income ETF	0.97%	4.13%	0.16%

Returns By Period

In the year-to-date period, RFIX achieves a 12.33% return, which is significantly higher than BUCK's 0.97% return.

RFIX

• 1D: -3.21%
• 1M: -3.42%
• YTD: 12.33%
• 6M: -3.00%
• 1Y: -20.93%
• 3Y*: —
• 5Y*: —
• 10Y*: —

BUCK

• 1D: 0.02%
• 1M: 0.13%
• YTD: 0.97%
• 6M: 2.27%
• 1Y: 2.66%
• 3Y*: 5.30%
• 5Y*: —
• 10Y*: —

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

RFIX vs. BUCK - Expense Ratio Comparison

RFIX has a 0.50% expense ratio, which is higher than BUCK's 0.35% expense ratio.

RFIX

Simplify Bond Bull ETF

BUCK

Simplify Stable Income ETF

Return for Risk

RFIX vs. BUCK — Risk / Return Rank

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

RFIX

RFIX Risk / Return Rank: 3
RFIX Sharpe Ratio Rank: 2
RFIX Sortino Ratio Rank: 2
RFIX Omega Ratio Rank: 3
RFIX Calmar Ratio Rank: 4
RFIX Martin Ratio Rank: 6

BUCK

BUCK Risk / Return Rank: 27
BUCK Sharpe Ratio Rank: 31
BUCK Sortino Ratio Rank: 26
BUCK Omega Ratio Rank: 30
BUCK Calmar Ratio Rank: 25
BUCK Martin Ratio Rank: 23

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.

RFIX vs. BUCK - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Simplify Bond Bull ETF (RFIX) and Simplify Stable Income ETF (BUCK). 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.

	RFIX	BUCK	Difference
Sharpe ratio Return per unit of total volatility	-0.65	0.55	-1.21
Sortino ratio Return per unit of downside risk	-0.79	0.72	-1.51
Omega ratio Gain probability vs. loss probability	0.91	1.12	-0.20
Calmar ratio Return relative to maximum drawdown	-0.52	0.51	-1.03
Martin ratio Return relative to average drawdown	-0.79	1.35	-2.14
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

RFIX vs. BUCK - Sharpe Ratio Comparison

The current RFIX Sharpe Ratio is -0.65, which is lower than the BUCK Sharpe Ratio of 0.55. The chart below compares the historical Sharpe Ratios of RFIX and BUCK, 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

	RFIX	BUCK	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	-0.65	0.55	-1.21
Sharpe Ratio (All Time) Calculated using the full available price history	-0.74	1.44	-2.18

Correlation

The correlation between RFIX and BUCK is 0.27, 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

RFIX vs. BUCK - Dividend Comparison

RFIX's dividend yield for the trailing twelve months is around 4.67%, less than BUCK's 7.57% yield.

	TTM	2025	2024	2023	2022
RFIX Simplify Bond Bull ETF	4.67%	5.07%	0.00%	0.00%	0.00%
BUCK Simplify Stable Income ETF	7.57%	7.59%	8.84%	4.84%	0.59%

Drawdowns

RFIX vs. BUCK - Drawdown Comparison

The maximum RFIX drawdown since its inception was -38.79%, which is greater than BUCK's maximum drawdown of -5.43%. Use the drawdown chart below to compare losses from any high point for RFIX and BUCK.

Drawdown Indicators

	RFIX	BUCK	Difference
Max Drawdown Largest peak-to-trough decline	-38.79%	-5.43%	-33.36%
Max Drawdown (1Y) Largest decline over 1 year	-36.01%	-5.43%	-30.58%
Current Drawdown Current decline from peak	-29.52%	-0.13%	-29.39%
Average Drawdown Average peak-to-trough decline	-23.03%	-0.52%	-22.51%
Ulcer Index Depth and duration of drawdowns from previous peaks	23.79%	2.04%	+21.75%

Volatility

RFIX vs. BUCK - Volatility Comparison

Simplify Bond Bull ETF (RFIX) has a higher volatility of 13.53% compared to Simplify Stable Income ETF (BUCK) at 0.33%. This indicates that RFIX's price experiences larger fluctuations and is considered to be riskier than BUCK based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	RFIX	BUCK	Difference
Volatility (1M) Calculated over the trailing 1-month period	13.53%	0.33%	+13.20%
Volatility (6M) Calculated over the trailing 6-month period	22.63%	1.68%	+20.95%
Volatility (1Y) Calculated over the trailing 1-year period	32.19%	4.83%	+27.36%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	32.27%	3.55%	+28.72%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	32.27%	3.55%	+28.72%