Fixed Income

CoreBuilder® Core Plus SMA

Bloomberg U.S. Aggregate Bond Index
Benchmark name
2/1/2016
Inception date
Plus Fixed Income Team
Team
$2.2B
Strategy assetsInclusive of assets under advisement
Data as of 3/31/2026
SMA overview

Foundational fixed income portfolio focusing on our best global ideas

The CoreBuilder® Core Plus SMA aims to deliver total return in excess of the benchmark by using a risk-conscious, relative value approach to pursue upside potential, produce income for shareholders, and manage downside risk.

Increasingly integrated fixed income markets coupled with segmented investor bases can create substantial opportunities to generate attractive returns by allocating across global sectors. 
 
Key differentiators

  • Uses a six-month investment horizon to anticipate market inflection points
  • Allocates up to 35% in Plus sectors and a minimum of 65% to Aggregate sectors
  • Seeks diversified and unbiased sources of alpha to generate compelling returns over market cycle
  • Innovative portfolio structure of the CoreBuilder, captures the benefits of both mutual fund and SMA investing into one hybrid vehicle 

General facts

Current yield

6.02%

(as of 3/31/2026)

Effective duration

6.25

(as of 4/16/2026)

Yield to worst

5.27

(as of 4/16/2026)

Average credit quality

A

Quick resources

Q1 review and Q2 outlook

Janet Rilling, Senior Portfolio Manager and Head of the Plus Fixed Income team, gives an overview of fixed income markets in Q1 and insight into the team’s outlook and positioning going into Q2.

Transcript

What stood out to you during the first quarter in fixed income?
What really stood out in the first quarter was how quickly the market moved from complacency to complexity. Prior to March, the market seemed to be settled in a very comfortable consensus on growth, monetary policy, and really the overall direction of financial markets. But with the onset of the Iranian conflict that was shattered, we saw the energy shock triggering reignited inflation concerns, which pushed sovereign yield curves much higher across major developed markets. At the same time, credit spreads experienced markedly less dislocation, widening only modestly and remaining near historical tights. This dichotomy between rates and credit suggests to us that the market has greater concern around higher inflation than a sustained growth downturn. Still, the situation remains highly fluid. Ultimately, the dynamic nature of the current market environment has reinforced the important role of active management in navigating uncertainty.

What are you most focused on as we move into the next quarter? 
As we look forward, we are emphasizing flexibility, diversification, and discipline in the second quarter. In an environment where risks are more complex and outcomes more dispersed, the ability to use multiple levers to actively shift portfolios toward the most compelling opportunities is paramount. Today, we are focused on broad diversification and up-in-quality tilt, given historically tight credit spreads and strong liquidity. From a positioning perspective, near-term rate sell-offs created attractive opportunities to selectively and incrementally add duration, leading us to modestly overweight diversified across U.S. and non-U.S. curves. Our credit exposure is skewed toward higher-quality, shorter-dated U.S. dollar investment-grade corporates and has increased just above our long-term averages. This increase was funded by trimming European credit and selected securitized exposures where strong performance had diminished relative value. We will continue to be selective and opportunistic, taking what the market gives us while maintaining optionality as prices evolve.

What’s your playbook for managing geopolitical shocks like the Iran conflict?
The name of the game is separating prices from headlines. A rapidly shifting geopolitical landscape can create the temptation to act on impulse and without complete information. Our relative-value-focused process is designed to resist this temptation. We are prepared to capitalize should volatility ramp up or dislocation in relative values become more meaningful, but only when the compensation for doing so justifies such action. This disciplined approach is guided by our six-month outlook, which not only frees us from having to predict increasingly hazy long-term outcomes but also allows us to cut through the noise created by constant and often conflicting headlines. We believe leaning into our process will allow us to successfully navigate this uncertain backdrop while locking in compelling income for our clients.

Performance

Average annual returns

Average annual returns

(as of 3/31/2026)
2/1/2016
1M
3M
YTD
1Y
3Y
5Y
10Y
Inception
Composite (Pure Gross)
-2.03
-0.06
-0.06
4.85
4.45
1.00
3.31
3.54
Composite (Net)
-2.15
-0.44
-0.44
3.28
2.89
-0.51
1.77
2.00
Bloomberg U.S. Aggregate Bond Index
-1.76
-0.05
-0.05
4.35
3.63
0.31
1.70
1.86

One-month, three-month and year-to-date returns are not annualized.

Performance is historical and does not guarantee future results. For more information, please refer to the GIPS composite report found in the documents section.

Calendar year

Calendar year

(as of 12/31/2025)
2025
2024
2023
2022
2021
2020
2019
2018
2017
Composite
7.64
2.38
7.13
-13.41
0.58
12.08
9.89
0.21
6.09
Benchmark
7.30
1.25
5.53
-13.01
-1.54
7.51
8.72
0.01
3.54

Performance is historical and does not guarantee future results. For more information, please refer to the GIPS composite report found in the documents section.

Performance and volatility metrics

Performance and volatility metrics

(as of 3/31/2026)
3 Year 5 Year 10 Year
Alpha 87.35 85.17 164.01
Beta 1.05 1.05 1.04
Sharpe Ratio -0.05 -0.35 0.19
Standard Deviation 584.43 671.91 551.60
R2 0.99 0.99 0.92
Information Ratio 1.34 0.81 1.02
Upside Market Capture Ratio 107.09 108.69 125.52
Downside Market Capture Ratio 96.72 99.24 95.65
Tracking Error 61.19 85.90 159.14
Correlation 1.00 0.99 0.96

Composition

Portfolio statistics

Portfolio statistics

(as of 3/31/2026)
SMA Benchmark
AMT 0.00 -
Effective Duration 6.33 5.88
Weighted Average Effective Maturity 9.04 Years 8.14 Years
Average Current Yield 6.02 3.96
Yield to Worst 5.36 4.57

Portfolio holdings, credit quality, and characteristics are based on a representative account. CoreBuilder Shares are a series of investment options within the separately managed accounts advised or subadvised by Allspring Funds Management, LLC. The shares are fee-waived mutual funds that enable certain separately managed account investors to achieve greater diversification than smaller managed accounts might otherwise achieve. Allspring Global Investments, LLC, provides the sub advisory services for the Allspring Funds Management retail managed account product.

Credit quality

Credit quality

(as of 3/31/2026)
Type
SMA
Benchmark
AAA/Aaa
5.66% 3.15%
AA/Aa
44.91% 73.80%
A/A
21.09% 11.48%
BBB/Baa
16.11% 11.57%
BB/Ba
6.46% -
B/B
1.82% -
CCC/Caa and below
0.05% -
Not rated
3.13% -
Other
0.49% -
Cash & equivalents
0.29% -

The ratings indicated are from Standard & Poor's, Fitch Ratings Ltd., and/or Moody's Investors Service. The percentages of the fund's portfolio with the ratings depicted in the chart are calculated based on total investments of the fund. If a security was rated by all three rating agencies, the middle rating was used. If rated by two of three rating agencies, the lower rating was used, and if rated by one of the agencies, that rating was used. Credit quality is subject to change and may have changed since the date specified. Percent total may not add to 100% due to rounding.

Maturity

Maturity

(as of 3/31/2026)
Maturity Range
SMA
0 - 1 year
1.90%
1 - 3 years
12.91%
3 - 5 years
25.25%
5 - 10 years
44.54%
10 - 20 years
7.35%
20+ years
7.76%
Other
0.01%

Duration distribution is subject to change and may have changed since the date specified. Percent total may not add to 100% due to rounding.

Portfolio composition

Portfolio composition

(as of 3/31/2026)
Credit Assets
Allocation
Benchmark
Corporate bonds
38.15% 23.91%
Government-related
1.76% 4.26%
Securitized
41.86% 25.73%
Treasuries
18.23% 46.10%

Portfolio composition is subject to change and may have changed since the date specified. Percent total may not add to 100% due to rounding.

Documents

Literature Date
Fact Sheet 3/31/2026 Download
GIPS Report 3/31/2026 Download
Our team

Meet the investment team

The team employs a sector specialist model whereby tenured investment professionals are supported by rigorous credit research to source opportunities across global fixed income markets.

Contact us

We look forward to helping you with your investment needs

 

Bond values fluctuate in response to the financial condition of individual issuers, general market and economic conditions, and changes in interest rates. Changes in market conditions and government policies may lead to periods of heightened volatility in the bond market and reduced liquidity for certain bonds held by the fund. In general, when interest rates rise, bond values fall and investors may lose principal value. Interest-rate changes and their impact on the fund and its share price can be sudden and unpredictable. Loans are subject to risks similar to those associated with other below-investment-grade bond investments, such as credit risk (for example, risk of issuer default), below-investment-grade bond risk (for example, risk of greater volatility in value), and risk that the loan may become illiquid or difficult to price. The use of derivatives may reduce returns and/or increase volatility. Certain investment strategies tend to increase the total risk of an investment (relative to the broader market). This fund is exposed to foreign investment risk, high-yield securities risk, and mortgage- and asset-backed securities risk. Consult the fund's prospectus for additional information on these and other risks.

Allspring Managed Account Services (the firm) is a unit within Allspring Global Investments and is responsible for the management and administration of the Allspring Funds Management, LLC, retail separately managed account portfolios (wrap portfolios). Allspring Funds Management acts as a discretionary manager for separately managed accounts ("SMA") and as a non-discretionary model provider in a variety of managed account or wrap fee programs (“MA Programs”) sponsored by third party investment advisers, broker-dealers, or other financial services firms (a “Sponsor”). When acting as non-discretionary model provider, Allspring Funds Management responsibility is limited to providing non-discretionary investment recommendations (in the form of model portfolios) to the Sponsor. The Sponsor may use these recommendations in connection with its management of MA Program accounts. In these “model-based” programs, the Sponsor serves as the investment manager and maintains trade implementation responsibility.