# Portfolio overlap — AABOX vs MBOAX

Comparing **Bond Fund** (2026-02-28) and **Madison Core Bond Fund** (2026-04-30).

- Shared positions: 4
- Bond Fund covered by Madison Core Bond Fund: 0.03403071079322194782200376328
- Madison Core Bond Fund covered by Bond Fund: 0.03403071079322194782200376328

## Bond Fund — top positions

| Security | Weight | Shared |
|----------|--------|--------|
| US TREASURY N/B | 0.104963 |  |
| US TREASURY N/B | 0.035790 |  |
| US TREASURY N/B | 0.028570 | ✓ |
| US TREASURY N/B | 0.026579 | ✓ |
| CAVANAL HILL GOVERNMENT SECURITIES MONEY MARKET | 0.023152 |  |
| UNIV OF OKLAHOMA OK TXBL REF UNIV | 0.015095 |  |
| FEDERAL NATIONAL MORTGAGE ASSOCIATION | 0.014870 |  |
| BANK OF AMER CRP | 0.014453 |  |
| HELMERICH & PAYN | 0.013663 |  |
| HI-FI MUSIC IP ISSUER LP HIFI 2022 1A A2 144A | 0.013652 |  |
| JPMORGAN CHASE | 0.013345 |  |
| ONEOK INC | 0.012921 |  |
| TX ELECTRIC MRKT | 0.012580 |  |
| TX NATURAL GAS SECZ | 0.012427 |  |
| HUMANA INC | 0.011822 | ✓ |
| WELLS FARGO CO | 0.011820 |  |
| AMERICAN HONDA F | 0.011799 |  |
| PUB SVC OKLAHOMA | 0.011712 |  |
| HNGRY 2024-1A A2 | 0.011680 |  |
| JPMCC 2017-JP5 A5 | 0.011411 |  |
| VIRGINIA POWER | 0.011344 |  |
| GEN MOTORS FIN | 0.011245 |  |
| MORGAN STANLEY | 0.011231 |  |
| SWTCH Energy Inc. 6.28%, Due 03/25/2054 | 0.011149 |  |
| BROADCOM INC | 0.010843 |  |
| INDIANA ST FIN AUTH REVENUE INSFIN 02/39 FIXED 6.596 | 0.010648 |  |
| Freddie Mac Pool | 0.010540 |  |
| GOVERNMENT NATIONAL MORTGAGE ASSOCIATION | 0.010481 |  |
| UNITEDHEALTH GRP | 0.010478 |  |
| TX NATURAL GAS SECZ | 0.010405 |  |
| FEDERAL NATIONAL MORTGAGE ASSOCIATION | 0.010379 |  |
| Saudi Arabian Oil Company | 0.010197 |  |
| FEDERAL HOME LOAN MORTGAGE CORPORATION | 0.010185 |  |
| Banc of America Merrill Lynch Commercial Mortgage Series 2020-BOC, Class A | 0.010174 |  |
| International Business Machines Corp. | 0.010153 |  |
| FEDERAL NATIONAL MORTGAGE ASSOCIATION | 0.010125 |  |
| FR SD8382 | 0.010004 |  |
| UMBS | 0.009960 |  |
| FINANCE OF AMERICA STRUCTURED SECURITIES RMF TRUST | 0.009939 |  |
| FEDERAL HOME LOAN MORTGAGE CORP | 0.009934 |  |
| META PLATFORMS | 0.009878 |  |
| DataBank Issuer, Series 2024-1A, Class A2 | 0.009795 |  |
| FEDERAL NATIONAL MORTGAGE ASSOCIATION | 0.009759 |  |
| ALTRIA GROUP INC | 0.009644 |  |
| FEDERAL NATIONAL MORTGAGE ASSOCIATION | 0.009610 |  |
| FR SD8431 | 0.009425 |  |
| FEDERAL NATIONAL MORTGAGE ASSOCIATION | 0.009343 |  |
| COREVEST AMERICAN FINANCE 2021 2 TRUST | 0.009086 |  |
| ENTERGY MISSISSIPPI LLC | 0.009030 |  |
| GOVERNMENT NATIONAL MORTGAGE ASSOCIATION | 0.009009 |  |

## Madison Core Bond Fund — top positions

| Security | Weight | Shared |
|----------|--------|--------|
| US TREASURY N/B | 0.024677 |  |
| US TREASURY N/B | 0.024277 |  |
| US TREASURY N/B | 0.022272 |  |
| US TREASURY N/B | 0.019985 |  |
| US TREASURY N/B | 0.018794 |  |
| US TREASURY N/B | 0.017605 |  |
| US TREASURY N/B | 0.017599 | ✓ |
| US TREASURY N/B | 0.017344 |  |
| US TREASURY N/B | 0.016981 |  |
| US TREASURY N/B | 0.016607 |  |
| US TREASURY N/B | 0.013678 | ✓ |
| US TREASURY N/B | 0.013358 |  |
| US TREASURY N/B | 0.013225 |  |
| FNMA UMBS, 30 Year | 0.012628 |  |
| FN MA4841 | 0.011754 |  |
| FR SD7552 | 0.011365 |  |
| State Street Navigator Securities Lending Government Money Market Portfolio | 0.011353 |  |
| Government National Mortgage Association REMICS | 0.010769 |  |
| FR SD8267 | 0.009890 |  |
| FR SD8266 | 0.009639 |  |
| US TREASURY N/B | 0.009583 |  |
| US TREASURY N/B | 0.009342 |  |
| State Street Navigator Securities Lending Portfolio II | 0.009262 |  |
| FN MA4785 | 0.009246 |  |
| US TREASURY N/B | 0.009031 |  |
| FR SD8257 | 0.007954 |  |
| US TREASURY N/B | 0.007653 |  |
| FN MA4571 | 0.007391 |  |
| UMBS | 0.007264 |  |
| FR SD8276 | 0.007003 |  |
| Government National Mortgage Association 6.00 | 0.006466 |  |
| TPMT 2024-4 A1A | 0.005748 |  |
| VZMT 2024-3 B | 0.005580 |  |
| FN MA4842 | 0.005559 |  |
| US TREASURY N/B | 0.005522 |  |
| FR SD8268 | 0.005501 |  |
| Federal National Mortgage Association | 0.005320 |  |
| FR SD2875 | 0.005170 |  |
| FR RA8278 | 0.005004 |  |
| FR SD7556 | 0.004898 |  |
| FNA 2022-M1 A2 | 0.004806 |  |
| FR SD8277 | 0.004738 |  |
| Freddie Mac Pool | 0.004515 |  |
| Fannie Mae Pool | 0.004367 |  |
| FNMA UMBS, 30 Year | 0.004241 |  |
| FNMA 30YR 4% 05/01/2052#CB3627 | 0.004223 |  |
| FREDDIE MAC POOL FR 04/52 FIXED 3.5 | 0.004191 |  |
| FN MA4334 | 0.004019 |  |
| FN MA5585 | 0.003923 |  |
| Federal National Mortgage Association | 0.003837 |  |


## Sources

- N-PORT (fund A) — accession `0001004726-26-002943` (as of 2026-02-28)
  <https://www.sec.gov/Archives/edgar/data/864508/000100472626002943/0001004726-26-002943-index.htm>
- N-PORT (fund B) — accession `0001410368-26-064089` (as of 2026-04-30)
  <https://www.sec.gov/Archives/edgar/data/1040612/000141036826064089/0001410368-26-064089-index.htm>

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_Data sourced from U.S. SEC EDGAR filings (Forms N-PORT, N-CEN, and prospectus Risk/Return summaries). FundWatcher is not affiliated with the SEC._

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