BFIX vs. AFIX

Last updated Apr 1, 2026

Compare and contrast key facts about Build Bond Innovation ETF (BFIX) and Allspring Broad Market Core Bond ETF (AFIX).

BFIX and AFIX are both exchange-traded funds (ETFs), meaning they are traded on stock exchanges and can be bought and sold throughout the day. BFIX is an actively managed fund by Build. It was launched on Feb 9, 2022. AFIX is an actively managed fund by Allspring. It was launched on Dec 4, 2024.

Performance

BFIX vs. AFIX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Build Bond Innovation ETF (BFIX) and Allspring Broad Market Core Bond ETF (AFIX). The values are adjusted to include any dividend payments, if applicable.

BFIX vs. AFIX - Yearly Performance Comparison

	2026 (YTD)	2025	2024
BFIX Build Bond Innovation ETF	1.25%	5.91%	-0.70%
AFIX Allspring Broad Market Core Bond ETF	0.29%	7.52%	-1.67%

Returns By Period

In the year-to-date period, BFIX achieves a 1.25% return, which is significantly higher than AFIX's 0.29% return.

BFIX

• 1D: 0.17%
• 1M: -0.41%
• YTD: 1.25%
• 6M: 2.16%
• 1Y: 5.26%
• 3Y*: 7.75%
• 5Y*: —
• 10Y*: —

AFIX

• 1D: 0.26%
• 1M: -1.90%
• YTD: 0.29%
• 6M: 1.31%
• 1Y: 4.99%
• 3Y*: —
• 5Y*: —
• 10Y*: —

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

BFIX vs. AFIX - Expense Ratio Comparison

BFIX has a 0.45% expense ratio, which is higher than AFIX's 0.20% expense ratio.

BFIX

Build Bond Innovation ETF

AFIX

Allspring Broad Market Core Bond ETF

Return for Risk

BFIX vs. AFIX — Risk / Return Rank

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

BFIX

BFIX Risk / Return Rank: 89
BFIX Sharpe Ratio Rank: 86
BFIX Sortino Ratio Rank: 91
BFIX Omega Ratio Rank: 83
BFIX Calmar Ratio Rank: 96
BFIX Martin Ratio Rank: 91

AFIX

AFIX Risk / Return Rank: 58
AFIX Sharpe Ratio Rank: 61
AFIX Sortino Ratio Rank: 58
AFIX Omega Ratio Rank: 52
AFIX Calmar Ratio Rank: 70
AFIX Martin Ratio Rank: 51

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.

BFIX vs. AFIX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Build Bond Innovation ETF (BFIX) and Allspring Broad Market Core Bond ETF (AFIX). 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.

	BFIX	AFIX	Difference
Sharpe ratio Return per unit of total volatility	1.74	1.10	+0.63
Sortino ratio Return per unit of downside risk	2.66	1.54	+1.12
Omega ratio Gain probability vs. loss probability	1.33	1.20	+0.13
Calmar ratio Return relative to maximum drawdown	4.49	1.83	+2.66
Martin ratio Return relative to average drawdown	12.08	5.07	+7.01
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

BFIX vs. AFIX - Sharpe Ratio Comparison

The current BFIX Sharpe Ratio is 1.74, which is higher than the AFIX Sharpe Ratio of 1.10. The chart below compares the historical Sharpe Ratios of BFIX and AFIX, 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

	BFIX	AFIX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.74	1.10	+0.63
Sharpe Ratio (All Time) Calculated using the full available price history	0.87	1.00	-0.13

Correlation

The correlation between BFIX and AFIX is 0.36, 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

BFIX vs. AFIX - Dividend Comparison

BFIX's dividend yield for the trailing twelve months is around 3.58%, less than AFIX's 5.15% yield.

	TTM	2025	2024	2023	2022
BFIX Build Bond Innovation ETF	3.58%	3.73%	4.38%	4.30%	1.58%
AFIX Allspring Broad Market Core Bond ETF	5.15%	4.94%	0.38%	0.00%	0.00%

Drawdowns

BFIX vs. AFIX - Drawdown Comparison

The maximum BFIX drawdown since its inception was -8.03%, which is greater than AFIX's maximum drawdown of -3.33%. Use the drawdown chart below to compare losses from any high point for BFIX and AFIX.

Drawdown Indicators

	BFIX	AFIX	Difference
Max Drawdown Largest peak-to-trough decline	-8.03%	-3.33%	-4.70%
Max Drawdown (1Y) Largest decline over 1 year	-1.22%	-2.81%	+1.59%
Current Drawdown Current decline from peak	-0.42%	-1.90%	+1.48%
Average Drawdown Average peak-to-trough decline	-2.85%	-0.85%	-2.00%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.46%	1.01%	-0.55%

Volatility

BFIX vs. AFIX - Volatility Comparison

The current volatility for Build Bond Innovation ETF (BFIX) is 0.62%, while Allspring Broad Market Core Bond ETF (AFIX) has a volatility of 1.72%. This indicates that BFIX experiences smaller price fluctuations and is considered to be less risky than AFIX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	BFIX	AFIX	Difference
Volatility (1M) Calculated over the trailing 1-month period	0.62%	1.72%	-1.10%
Volatility (6M) Calculated over the trailing 6-month period	2.24%	2.67%	-0.43%
Volatility (1Y) Calculated over the trailing 1-year period	3.05%	4.54%	-1.49%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	4.84%	4.60%	+0.24%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	4.84%	4.60%	+0.24%