# DIAMONDBACK ENERGY INC

DIAMONDBACK ENERGY INC is a security (CUSIP 25278XBA6) tracked across SEC portfolio filings. 27 registered fund positions totaling $105.6M via N-PORT as of 2026-05-31.

## Summary

- Issuer: DIAMONDBACK ENERGY INC
- CUSIP: 25278XBA6
- Asset category: DBT
- 13F holders: 0
- N-PORT fund positions: 27
- N-PORT value: $105.6M
- N-PORT report: 2026-05-31

## Top fund holders (N-PORT)

_Showing 15 of 27 fund positions by value._

| Fund | Registrant | Value | % of fund |
| --- | --- | --- | --- |
| [T. Rowe Price New Income Fund, Inc.](https://search.stillhousedata.com/fund/S000002136) | T. ROWE PRICE NEW INCOME FUND, INC. | $30.1M | 17.22% |
| [Master Total Return Portfolio](https://search.stillhousedata.com/fund/S000004067) | Master Bond LLC | $19.0M | 10.07% |
| [American Balanced Fund](https://search.stillhousedata.com/fund/S000008801) | American Balanced Fund | $10.2M | 0.39% |
| [American Funds Multi-Sector Income Fund](https://search.stillhousedata.com/fund/S000065032) | American Funds Multi-Sector Income Fund | $9.4M | 4.43% |
| [Bond Fund of America](https://search.stillhousedata.com/fund/S000009231) | Bond Fund of America | $7.1M | 0.71% |
| [Federated Hermes Total Return Bond Fund](https://search.stillhousedata.com/fund/S000010897) | Federated Hermes Total Return Series, Inc. | $6.1M | 4.05% |
| [American Funds Strategic Bond Fund](https://search.stillhousedata.com/fund/S000052313) | American Funds Strategic Bond Fund | $4.5M | 2.13% |
| [Income Fund of America](https://search.stillhousedata.com/fund/S000008814) | Income Fund of America | $4.3M | 0.29% |
| [Nomura Diversified Income Fund](https://search.stillhousedata.com/fund/S000003911) | Delaware Group Adviser Funds | $3.1M | 13.48% |
| [Nomura Extended Duration Bond Fund](https://search.stillhousedata.com/fund/S000003923) | Delaware Group Income Funds | $2.0M | 76.45% |
| [Federated Hermes Corporate Bond Fund](https://search.stillhousedata.com/fund/S000009106) | Federated Hermes Investment Series Funds, Inc. | $1.7M | 17.23% |
| [VANGUARD BALANCED INDEX FUND](https://search.stillhousedata.com/fund/S000002560) | VANGUARD VALLEY FORGE FUNDS | $1.2M | 0.20% |
| [T. Rowe Price Credit Opportunities Fund, Inc.](https://search.stillhousedata.com/fund/S000045403) | T. ROWE PRICE CREDIT OPPORTUNITIES FUND, INC. | $1.1M | 28.82% |
| [T. Rowe Price Corporate Income Fund, Inc.](https://search.stillhousedata.com/fund/S000002128) | T. ROWE PRICE CORPORATE INCOME FUND, INC. | $998K | 35.09% |
| [T. Rowe Price Total Return Fund](https://search.stillhousedata.com/fund/S000055582) | T. ROWE PRICE TOTAL RETURN FUND, INC. | $996K | 16.37% |

## More

- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/security/25278XBA6.md)
- [Search all SEC filings, advisers and people on Adviser Search](https://search.stillhousedata.com/)

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Source: public SEC filing data via Adviser Search (https://search.stillhousedata.com).
Agents: this data is also queryable via MCP tools and read-only SQL — see https://search.stillhousedata.com/llms.txt.