FPAS vs. SPAX

Last updated Jun 3, 2026

FPAS (FPA Short Duration Government ETF) and SPAX (Robinson Alternative Yield Pre-merger SPAC ETF) are both exchange-traded funds - FPAS is a Government Bonds fund actively managed by FPA, while SPAX is a Event Driven fund actively managed by Toroso Investments. Both are actively managed. At a 0.07 correlation, their price movements are largely independent. FPAS charges 0.09%/yr vs 0.85%/yr for SPAX.

Performance

FPAS vs. SPAX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in FPA Short Duration Government ETF (FPAS) and Robinson Alternative Yield Pre-merger SPAC ETF (SPAX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

FPAS

• 1D: 0.11%
• 1M: -0.33%
• YTD: -0.61%
• 6M: -0.44%
• 1Y: 3.02%
• 3Y*: —
• 5Y*: —
• 10Y*: —

SPAX

• 1D: —
• 1M: —
• YTD: —
• 6M: —
• 1Y: —
• 3Y*: —
• 5Y*: —
• 10Y*: —

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

FPAS vs. SPAX - Yearly Performance Comparison

	2026 (YTD)	2025	2024
FPAS FPA Short Duration Government ETF	-0.61%	7.15%	-0.03%
SPAX Robinson Alternative Yield Pre-merger SPAC ETF	0.00%	0.02%	1.92%

Correlation

The correlation between FPAS and SPAX is 0.07, meaning there is essentially no relationship between their price movements. Each responds to its own set of market drivers, making them strong candidates for combining in a diversified portfolio.

	Correlation
Correlation (All Time) Calculated using the full available price history since Nov 4, 2024	0.07

Return for Risk

FPAS vs. SPAX — Risk / Return Rank

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

FPAS

FPAS Risk / Return Rank: 25
FPAS Sharpe Ratio Rank: 26
FPAS Sortino Ratio Rank: 25
FPAS Omega Ratio Rank: 24
FPAS Calmar Ratio Rank: 24
FPAS Martin Ratio Rank: 26

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.

FPAS vs. SPAX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for FPA Short Duration Government ETF (FPAS) and Robinson Alternative Yield Pre-merger SPAC ETF (SPAX). 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.

	FPAS	SPAX	Difference
Sharpe ratio Return per unit of total volatility	0.93	—	—
Sortino ratio Return per unit of downside risk	1.40	—	—
Omega ratio Gain probability vs. loss probability	1.16	—	—
Calmar ratio Return relative to maximum drawdown	1.18	—	—
Martin ratio Return relative to average drawdown	3.60	—	—
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

Sharpe Ratios by Period

	FPAS	SPAX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	0.93	—	—
Sharpe Ratio (All Time) Calculated using the full available price history	1.00	—	—

Drawdowns

Drawdown Indicators

	FPAS	SPAX	Difference
Max Drawdown Largest peak-to-trough decline	-2.47%	—	—
Max Drawdown (1Y) Largest decline over 1 year	-2.47%	—	—
Current Drawdown Current decline from peak	-1.71%	—	—
Average Drawdown Average peak-to-trough decline	-0.67%	—	—
Ulcer Index Depth and duration of drawdowns from previous peaks	0.81%	—	—

Volatility

Volatility by Period

	FPAS	SPAX	Difference
Volatility (1M) Calculated over the trailing 1-month period	1.12%	—	—
Volatility (6M) Calculated over the trailing 6-month period	2.25%	—	—
Volatility (1Y) Calculated over the trailing 1-year period	3.25%	—	—
Volatility (5Y) Calculated over the trailing 5-year period, annualized	4.10%	—	—
Volatility (10Y) Calculated over the trailing 10-year period, annualized	4.10%	—	—

FPAS vs. SPAX - Expense Ratio Comparison

FPAS has a 0.09% expense ratio, which is lower than SPAX's 0.85% expense ratio.

Dividends

FPAS vs. SPAX - Dividend Comparison

FPAS's dividend yield for the trailing twelve months is around 4.77%, while SPAX has not paid dividends to shareholders.

Position	TTM	2025	2024	2023	2022
FPAS FPA Short Duration Government ETF	4.77%	4.75%	0.68%	0.00%	0.00%
SPAX Robinson Alternative Yield Pre-merger SPAC ETF	0.00%	0.00%	5.50%	7.54%	0.97%

Frequently Asked Questions

Can I hold both FPAS and SPAX in my portfolio?

FPAS and SPAX have a correlation of 0.07, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which ETF is better, FPAS or SPAX?

On fees, FPAS is cheaper at 0.09% per year. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF is cheaper, FPAS or SPAX?

FPAS is cheaper with a 0.09% expense ratio, compared with 0.85% for SPAX.

Which ETF pays a higher dividend yield, FPAS or SPAX?

FPAS has the higher dividend yield at 4.77%, compared with 0.00% for SPAX.

What is the main difference between FPAS and SPAX?

FPAS is categorized as Government Bonds, while SPAX is Event Driven. They also come from different issuers: FPA and Toroso Investments. Their fees differ too: 0.09% for FPAS and 0.85% for SPAX.