Diamondback Energy, Inc.
US ˙ NasdaqGS ˙ US25278X1090

SecurityFANG / Diamondback Energy, Inc.
InstitutionCommerzbank Aktiengesellschaft /fi
Latest Disclosed Ownership7,661 shares
Latest Disclosed Value $ 1,515
Commerzbank Aktiengesellschaft /fi ownership in FANG / Diamondback Energy, Inc.

On May 7, 2026 - Commerzbank Aktiengesellschaft /fi filed a 13F-HR form disclosing ownership of 7,661 shares of Diamondback Energy, Inc. (US:FANG) valued at $1,515,269 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 5, 2026 disclosing 12,673 shares of Diamondback Energy, Inc.. This represents a change in shares of -39.55% during the quarter. The current value of the position is $1,475,662 USD.

Commerzbank Aktiengesellschaft /fi has a history of taking positions in derivatives of the underlying security (FANG) in the form of stock options.

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)
2026-05-07 2026-03-31 13F DIAMONDBACK ENERGY COM 25278X109 7,661 -5,012 -39.55 2 0.00 0.0317
2026-02-05 2025-12-31 13F DIAMONDBACK ENERGY COM 25278X109 12,673 0 0.00 2 0.00 0.0388
2025-10-31 2025-09-30 13F DIAMONDBACK ENERGY COM 25278X109 12,673 8,877 233.85 2 0.0377
2025-07-24 2025-06-30 13F DIAMONDBACK ENERGY COM 25278X109 3,796 2,500 192.90 1 0.0120
2025-05-02 2025-03-31 13F DIAMONDBACK ENERGY COM 25278X109 1,296 0 0.00 0 0.0048
2025-02-06 2024-12-31 13F DIAMONDBACK ENERGY COM 25278X109 1,296 1,296 0 0.0050
2024-10-03 2019-12-31 13F/A-1 DIAMONDBACK ENERGY COM 25278X109 0 -121,968 -100.00 0 -100.00
2020-01-17 2019-12-31 13F DIAMONDBACK ENERGY COM 25278X109 0 -121,968 0
2024-10-03 2019-09-30 13F/A-1 DIAMONDBACK ENERGY COM 25278X109 121,968 338 0.28 11 -23.08 0.0839
2019-10-17 2019-09-30 13F DIAMONDBACK ENERGY COM 25278X109 121,968 338 10,966 0.0892
2024-10-03 2019-06-30 13F/A-1 DIAMONDBACK ENERGY COM 25278X109 121,630 -17,610 -12.65 13 -7.14 0.1049
2019-07-23 2019-06-30 13F DIAMONDBACK ENERGY COM 25278X109 121,630 -17,610 13,254 0.0933
2024-10-03 2019-03-31 13F/A-1 DIAMONDBACK ENERGY COM 25278X109 139,240 -5,418 -3.75 14 7.69 0.1289
2019-05-13 2019-03-31 13F DIAMONDBACK ENERGY COM 25278X109 139,240 -5,418 14,137 0.1428
2024-10-03 2018-12-31 13F/A-1 DIAMONDBACK ENERGY COM 25278X109 144,658 32,828 29.36 13 -13.33 0.1370
2019-02-06 2018-12-31 13F DIAMONDBACK ENERGY COM 25278X109 144,658 32,828 13,410 0.1461
2024-10-04 2018-09-30 13F/A-1 DIAMONDBACK ENERGY COM 25278X109 111,830 -1,030 -0.91 15 7.14 0.1310
2018-11-13 2018-09-30 13F DIAMONDBACK ENERGY COM 25278X109 111,830 -1,030 15,118 0.1429
2024-10-04 2018-06-30 13F/A-1 DIAMONDBACK ENERGY COM 25278X109 112,860 21,760 23.89 15 27.27 0.1407
2024-10-04 2018-06-30 13F/A-1 DIAMONDBACK ENERGY COM 25278X109 112,860 21,760 15 0.1407
2018-08-10 2018-06-30 13F DIAMONDBACK ENERGY COM 25278X109 112,860 21,760 14,849 0.1517
2024-10-04 2018-03-31 13F/A-1 DIAMONDBACK ENERGY COM 25278X109 91,100 -400 -0.44 12 0.00 0.1185
2018-05-01 2018-03-31 13F DIAMONDBACK ENERGY COM 25278X109 91,100 -400 11,526 0.1283
2024-10-04 2017-12-31 13F/A-1 DIAMONDBACK ENERGY COM 25278X109 91,500 -2,600 -2.76 12 -99.88 0.1325
2018-01-26 2017-12-31 13F DIAMONDBACK ENERGY COM 25278X109 91,500 -2,600 11,552 0.1432
2017-11-13 2017-09-30 13F DIAMONDBACK ENERGY COM 25278X109 94,100 88,450 1,565.49 9,218 1,736.25 0.1214
2017-08-09 2017-06-30 13F DIAMONDBACK ENERGY COM 25278X109 5,650 -1,533 -21.34 502 -32.62 0.0084
2017-05-01 2017-03-31 13F DIAMONDBACK ENERGY COM 25278X109 7,183 3,114 76.53 745 81.27 0.0110
2017-02-07 2016-12-31 13F DIAMONDBACK ENERGY COM 25278X109 4,069 4,069 411 0.0060
Disclosed Put 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
(%)
2024-10-03 2019-09-30 13F/A DIAMONDBACK ENERGY COM Put 0 -100.00 0 n/a n/a n/a
2019-10-17 2019-09-30 13F DIAMONDBACK ENERGY PUT Put 0 0 n/a n/a n/a
2024-10-03 2019-06-30 13F/A DIAMONDBACK ENERGY COM Put 36,500 1 n/a n/a n/a
2019-07-23 2019-06-30 13F DIAMONDBACK ENERGY PUT Put 36,500 3,977 n/a n/a n/a
2024-10-03 2019-03-31 13F/A DIAMONDBACK ENERGY COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2024-10-03 2018-12-31 13F/A DIAMONDBACK ENERGY COM Put 32,600 0.00 1 n/a n/a n/a
2024-10-04 2018-09-30 13F/A DIAMONDBACK ENERGY COM Put 32,600 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.