Diamondback Energy, Inc.
US ˙ NasdaqGS ˙ US25278X1090

SecurityFANG / Diamondback Energy, Inc.
InstitutionAdvisor Group Holdings, Inc.
Latest Disclosed Ownership47,317 shares
Latest Disclosed Value $ 9,367,092
Advisor Group Holdings, Inc. ownership in FANG / Diamondback Energy, Inc.

On May 15, 2026 - Advisor Group Holdings, Inc. filed a 13F-HR form disclosing ownership of 47,317 shares of Diamondback Energy, Inc. (US:FANG) valued at $9,358,829 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 42,451 shares of Diamondback Energy, Inc.. This represents a change in shares of 11.46% during the quarter. The current value of the position is $9,114,201 USD.

Advisor Group Holdings, Inc. has a history of taking positions in derivatives of the underlying security (FANG) in the form of stock options. The firm currently holds call options representing 0 of underlying shares valued at $0 USD .

Note: prior versions of this page mistakenly stated that the share values represented the number of options, not the number of underlying shares. For more information on the data backing these reports, please see the SEC document Frequently Asked Questions About Form 13F.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

Upgrade to unlock premium data and export to Excel .

Institutional Put/Call Ratios
(Premium Subscription Required)

In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

FANG / Diamondback Energy, Inc. Historical Put/Call Ratio
Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-15 2026-03-31 13F DIAMONDBACK ENERGY COM 25278X109 47,317 4,866 11.46 9,367 46.63 0.0080
2026-02-17 2025-12-31 13F DIAMONDBACK ENERGY COM 25278X109 42,451 -29,453 -40.96 6,389 -39.22 0.0093
2025-11-14 2025-09-30 13F DIAMONDBACK ENERGY COM 25278X109 71,904 128 0.18 10,511 3.25 0.0147
2025-09-04 2025-06-30 13F/A-1 IAMONDBACK ENERGY COM 25278X109 71,776 19,263 36.68 10,179 21.15 0.0181
2025-08-13 2025-06-30 13F IAMONDBACK ENERGY COM 25278X109 54,207 1,694 8,495 0.0098
2025-05-12 2025-03-31 13F DIAMONDBACK ENERGY COM 25278X109 52,513 13,417 34.32 8,402 39.24 0.0187
2025-06-06 2024-12-31 13F/A-1 DIAMONDBACK ENERGY COM 25278X109 39,096 -5,954 -13.22 6,035 -22.38 0.0135
2025-02-07 2024-12-31 13F DIAMONDBACK ENERGY COM 25278X109 42,500 -2,550 6,861 0.0175
2024-11-13 2024-09-30 13F DIAMONDBACK ENERGY COM 25278X109 45,050 6,464 16.75 7,774 0.30 0.0175
2024-08-13 2024-06-30 13F DIAMONDBACK ENERGY COM 25278X109 38,586 -7,949 -17.08 7,751 -16.04 0.0183
2024-05-10 2024-03-31 13F DIAMONDBACK ENERGY COM 25278X109 46,535 -41,518 -47.15 9,232 -32.43 0.0206
2024-02-12 2023-12-31 13F DIAMONDBACK ENERGY COM 25278X109 88,053 1,327 1.53 13,664 1.66 0.0239
2023-11-13 2023-09-30 13F DIAMONDBACK ENERGY COM 25278X109 86,726 14,523 20.11 13,440 41.27 0.0199
2023-08-21 2023-06-30 13F/A-1 DIAMONDBACK ENERGY COM 25278X109 72,203 -24,969 -25.70 9,514 -28.02 0.0171
2023-08-10 2023-06-30 13F DIAMONDBACK ENERGY COM 25278X109 72,203 -24,969 9,514 0.0026
2023-05-12 2023-03-31 13F DIAMONDBACK ENERGY COM 25278X109 97,172 2,774 2.94 13,218 2.32 0.0249
2023-02-10 2022-12-31 13F DIAMONDBACK ENERGY COM 25278X109 94,398 2,864 3.13 12,919 17.10 0.0262
2022-11-14 2022-09-30 13F DIAMONDBACK ENERGY COM 25278X109 91,534 -5,626 -5.79 11,032 -6.30 0.0252
2022-08-10 2022-06-30 13F DIAMONDBACK ENERGY COM 25278X109 97,160 7,318 8.15 11,774 15.00 0.0260
2022-05-04 2022-03-31 13F DIAMONDBACK ENERGY COM 25278X109 89,842 -10,791 -10.72 10,238 -6.04 0.0199
2022-02-03 2021-12-31 13F DIAMONDBACK ENERGY COM 25278X109 100,633 35,736 55.07 10,896 76.40 0.0206
2021-11-05 2021-09-30 13F DIAMONDBACK ENERGY COM 25278X109 64,897 -8,386 -11.44 6,177 -10.50 0.0129
2021-08-02 2021-06-30 13F DIAMONDBACK ENERGY COM 25278X109 73,283 -1,214 -1.63 6,902 25.38 0.0149
2021-05-13 2021-03-31 13F DIAMONDBACK ENERGY COM 25278X109 74,497 47,468 175.62 5,505 320.87 0.0132
2021-02-10 2020-12-31 13F DIAMONDBACK ENERGY COM 25278X109 27,029 -2,008 -6.92 1,308 44.53 0.0035
2020-11-12 2020-09-30 13F DIAMONDBACK ENERGY COM 25278X109 29,037 -9,801 -25.24 905 -44.34 0.0027
2020-08-14 2020-06-30 13F DIAMONDBACK ENERGY COM 25278X109 38,838 3,542 10.04 1,626 74.09 0.0055
2020-05-18 2020-03-31 13F DIAMONDBACK ENERGY COM 25278X109 35,296 35,296 934 0.0038
Disclosed Call Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share
Price
Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2024-02-12 2023-12-31 13F DIAMONDBACK ENERGY INC CALL COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2023-11-13 2023-09-30 13F DIAMONDBACK ENERGY INC CALL COM Call 1 0.00 6 50.00 n/a n/a n/a
2023-08-21 2023-06-30 13F/A DIAMONDBACK ENERGY INC CALL COM Call 1 0.00 4 0.00 n/a n/a n/a
2023-08-10 2023-06-30 13F DIAMONDBACK ENERGY INC CALL COM Call 1 4 n/a n/a n/a
2023-05-12 2023-03-31 13F DIAMONDBACK ENERGY INC CALL COM Call 1 0.00 5 -20.00 n/a n/a n/a
2023-02-10 2022-12-31 13F DIAMONDBACK ENERGY INC CALL COM Call 1 0.00 5 25.00 n/a n/a n/a
2022-11-14 2022-09-30 13F DIAMONDBACK ENERGY INC CALL COM Call 1 0.00 4 0.00 n/a n/a n/a
2022-08-10 2022-06-30 13F DIAMONDBACK ENERGY INC CALL COM Call 1 0.00 4 -20.00 n/a n/a n/a
2022-05-04 2022-03-31 13F DIAMONDBACK ENERGY INC CALL COM Call 1 5 n/a n/a n/a
2021-08-02 2021-06-30 13F DIAMONDBACK ENERGY INC CALL COM Call 0 -100.00 0 n/a n/a n/a
2021-05-13 2021-03-31 13F DIAMONDBACK ENERGY INC CALL COM Call 6 0 n/a n/a n/a
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.