Allspring Core Bond Portfolio

ALLSPRING MASTER TRUST

Actively managed U.S. bond fund
$4.60B NAV
987 positions · as of 2026-04-30 · filed 2026-06-24

Fund classification

Classified from what the fund holds · as of 2026 Q2

Allspring Core Bond Portfolio is an actively managed U.S. bond fund.

Asset class
Bonds
Region
United States
Management
Actively managed
Fund type
Open-end fund
Credit quality
Investment grade
Rate sensitivity
Intermediate duration
Features
Master-feeder

Fund profile

This fund files no prospectus profile. Unit investment trusts and closed-end funds register on forms that carry no objective or fee tagging, and some fund families file without it — a gap in what was filed, not a fund without an objective or without fees.

Allocation

Asset groups · long / short shown separately, never netted · 2026 Q2

103.37%
of net assets
Bonds56.45%
Securitized46.23%
Cash & short-term0.69%

Sector allocation

The same holdings as Allocation above, grouped by market sector instead of asset type · as of 2026 Q2

100%
of net assets
Securitized44.7%
Government27.4%
Financials5.6%
Other5.1%
12 smaller17.2%

Government, Securitized and Cash are non-corporate buckets; International is foreign holdings we don’t sector-classify, and Other is the residual (held funds, unresolved names).

Latest quarter

What changed since the fund's previous filing

2026Q2 vs 2026Q1: 204 new195 exited

Largest new: United States Treasury ×6, UMBS, TBA ×2

Largest exited: United States Treasury ×5, UMBS, TBA, Government National Mortgage Association ×2

Return profile

Total return as filed — price change plus distributions reinvested · trailing figures to Apr 2026

1-year
+4.29%
3-year
+11.78%
5-year
+13.10%
Volatility
3.51%
Worst 3-yr fall
-6.01%
Cumulative return· May 2023 – Apr 2026

Debt profile

What this fund holds — value-weighted across its bond and securitized long positions · as of 2026-04-30

Avg coupon
4.02%
Avg maturity
15.70 yr
Coupon type

Share of the fund's debt by how its coupon behaves — the fact that decides whether a rate move reaches this portfolio at all.

7%
floating
Fixed rate92.8%
Floating rate7.2%
Maturity ladder

Share of the fund's debt value in each maturity band, shortest first.

<1y10y+
<1y0.2%
1-3y10.2%
3-5y16.4%
5-10y16.0%
10y+57.2%
Flagged holdings
Defaulted: none reported
In arrears: none reported
Paid in kind: none reported

Based on what filers reported; a filer that never reported a flag also reads as none.

Risk profile

Interest-rate and credit-spread sensitivity, both in years · as of 2026Q2

Most of this fund’s sensitivity is to interest rates, with credit spreads carrying about half as much.

Interest-rate duration
6.01 yr
approx. move per 100bp
Credit-spread duration
2.17 yr
approx. move per 100bp
If rates and spreads both rise 100bp

Where the loss would come from. The two shocks are the same size, so this is the balance of the fund's two sensitivities rather than a bet on one moving more.

≈ -8.0%
of value
Interest rates74%
Credit spreads26%

Filers report the impact of a 0.01% move only, so the total is our own scaling of that one number and overstates the loss on most bonds — read it as approximate, never as precise. The two sensitivities overlap rather than add up: they measure the same positions against different shocks, which is why the durations above are shown side by side and never summed.

Credit risk by quality

Share of the fund's spread duration carried by each credit tier.

+2.17
yrs total
Investment grade+2.16 yr
High yield+0.00 yr
Where the risk sits on the curve

Share of duration at each point, shortest first. A positive figure loses value when spreads widen; a negative one offsets — a credit hedge.

Interest rate6.01 yr total
3 mo30 yr
3 mo0.02 yr0%
1 yr0.58 yr10%
5 yr1.71 yr28%
10 yr2.46 yr41%
30 yr1.24 yr21%
Credit spread2.17 yr total
3 mo30 yr
3 mo0.01 yr0%
1 yr0.22 yr10%
5 yr0.72 yr33%
10 yr0.81 yr38%
30 yr0.41 yr19%

The two bands measure the same positions against different shocks and do not add — a Treasury carries rate duration and no spread duration, a floating-rate credit the reverse. Rate tenors are also summed across every currency the fund discloses.

Show the numbers
TenorRate yrsIG yrsHY yrsIG $/bpHY $/bp
3 mo+0.02+0.01+0.00$2.9k$4
1 yr+0.58+0.22+0.00$101.4k$84
5 yr+1.71+0.72+0.00$330.8k$318
10 yr+2.46+0.81+0.00$373.2k$773
30 yr+1.24+0.41+0.00$186.9k$123

Dollar change per 1bp of spread movement, as filed and sign-anchored. A blank cell was not filed; a zero was.

Holdings

By % of NAV · equity positions carry filed share counts · every resolvable issuer links to its company page

Issuer%NAVValue
United States Treasury3.63% · due 2030-08-312.44%$112.24M
United States Treasury3.88% · due 2031-03-312.05%$94.12M
UMBS, TBA5.50% · due 2056-06-012.00%$92.06M
United States Treasury4.63% · due 2046-02-151.81%$83.49M
United States Treasury4.63% · due 2055-11-151.78%$82.01M
United States Treasury4.13% · due 2027-10-311.68%$77.22M
United States Treasury3.88% · due 2030-04-301.66%$76.35M
United States Treasury3.88% · due 2031-04-301.63%$75.03M
UMBS, TBA5.00% · due 2056-05-011.44%$66.30M
United States Treasury4.13% · due 2036-02-151.27%$58.65M
Showing 10 of 987Sign in to see more

Top 10 positions are 17.77% of net assets, top 25 30.44%, across 239 issuers.

See more of this fund's book

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