NRG Energy, Inc.
MX ˙ BMV ˙ US6293775085
SecurityMX:NRG / NRG Energy, Inc.
InstitutionCapital Fund Management S.a.
Latest Disclosed Ownership181,076 shares
Latest Disclosed Value $ 26,462,446
Capital Fund Management S.a. ownership in NRG / NRG Energy, Inc.

On May 14, 2026 - Capital Fund Management S.a. filed a 13F-HR form disclosing ownership of 181,076 shares of NRG Energy, Inc. (MX:NRG) valued at $26,462,446 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 164,746 shares of NRG Energy, Inc.. This represents a change in shares of 9.91% during the quarter.

Capital Fund Management S.a. has a history of taking positions in derivatives of the underlying security (NRG) in the form of stock options. The firm currently holds call options representing 0 of underlying shares valued at $0 USD and put 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.

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Institutional Put/Call Ratios
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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.

MX:NRG / NRG 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)
2026-05-14 2026-03-31 13F NRG ENERGY INC COM NRG ENERGY INC COM NEW 629377508 181,076 16,330 9.91 26,462 0.87 0.1196
2026-02-17 2025-12-31 13F NRG ENERGY INC COM NRG ENERGY INC COM NEW 629377508 164,746 -124,774 -43.10 26,234 -44.05 0.0729
2025-11-13 2025-09-30 13F NRG ENERGY COM NEW 629377508 289,520 165,172 132.83 46,888 134.82 0.1229
2025-08-13 2025-06-30 13F NRG ENERGY COM NEW 629377508 124,348 36,061 40.85 19,968 136.94 0.0550
2025-05-14 2025-03-31 13F NRG ENERGY COM NEW 629377508 88,287 88,287 8,428 0.0243
2024-05-15 2024-03-31 13F NRG ENERGY COM NEW 629377508 0 -40,051 -100.00 0 -100.00
2024-02-14 2023-12-31 13F NRG ENERGY COM NEW 629377508 40,051 40,051 2,071 0.0056
2023-08-14 2023-06-30 13F NRG ENERGY COM NEW 629377508 0 -30,429 -100.00 0 -100.00
2023-05-15 2023-03-31 13F NRG ENERGY COM NEW 629377508 30,429 -24,135 -44.23 1,043 -39.92 0.0050
2023-02-13 2022-12-31 13F NRG ENERGY COM NEW 629377508 54,564 54,564 1,736 0.0117
2021-08-12 2021-06-30 13F NRG ENERGY COM NEW 629377508 0 -25,039 -100.00 0 -100.00
2021-05-14 2021-03-31 13F NRG ENERGY COM NEW 629377508 25,039 -154,262 -86.04 945 -85.98 0.0104
2021-02-12 2020-12-31 13F NRG ENERGY COM NEW 629377508 179,301 -421,135 -70.14 6,733 -63.53 0.0635
2020-11-13 2020-09-30 13F NRG ENERGY COM NEW 629377508 600,436 -42,471 -6.61 18,457 -11.83 0.2279
2020-08-13 2020-06-30 13F NRG ENERGY COM NEW 629377508 642,907 -359,575 -35.87 20,933 -23.40 0.3322
2020-05-13 2020-03-31 13F NRG Energy COM NEW 629377508 1,002,482 695,790 226.87 27,328 124.17 0.4228
2020-02-13 2019-12-31 13F NRG Energy COM NEW 629377508 306,692 28,036 10.06 12,191 10.48 0.0959
2019-11-13 2019-09-30 13F NRG Energy COM NEW 629377508 278,656 152,882 121.55 11,035 149.83 0.0993
2019-08-12 2019-06-30 13F NRG Energy COM NEW 629377508 125,774 114,594 1,024.99 4,417 829.89 0.0402
2019-05-13 2019-03-31 13F/A-1 NRG Energy COM NEW 629377508 11,180 -52,247 -82.37 475 -81.09 0.0042
2019-05-13 2019-03-31 13F NRG Energy COM NEW 629377508 63,427 0 2,512
2019-02-13 2018-12-31 13F NRG Energy COM NEW 629377508 63,427 -257,991 -80.27 2,512 -79.10 0.0222
2018-11-14 2018-09-30 13F NRG Energy COM NEW 629377508 321,418 162,500 102.25 12,021 146.38 0.0655
2018-08-14 2018-06-30 13F NRG Energy COM NEW 629377508 158,918 -289,800 -64.58 4,879 -64.38 0.0255
2018-05-15 2018-03-31 13F NRG Energy COM NEW 629377508 448,718 448,718 13,699 0.0822
2017-11-13 2017-09-30 13F NRG Energy COM NEW 629377508 0 -270,689 -100.00 0 -100.00
2017-08-10 2017-06-30 13F NRG Energy COM NEW 629377508 270,689 -522,963 -65.89 4,661 -68.59 0.0376
2017-05-03 2017-03-31 13F NRG Energy COM NEW 629377508 793,652 745,277 1,540.62 14,841 2,402.70 0.1238
2017-02-08 2016-12-31 13F NRG Energy COM NEW 629377508 48,375 -77,663 -61.62 593 -58.03 0.0051
2016-10-31 2016-09-30 13F NRG Energy COM NEW 629377508 126,038 126,038 0.00 1,413 0.0130
2015-07-28 2015-06-30 13F NRG Energy COM NEW 629377508 0 -86,891 -100.00 0 -100.00
2015-04-28 2015-03-31 13F NRG Energy COM NEW 629377508 86,891 86,891 0.00 2,189 0.0299
2014-10-31 2014-09-30 13F NRG Energy COM NEW 629377508 0 -322,725 -100.00 0 -100.00
2014-08-01 2014-06-30 13F NRG Energy COM NEW 629377508 322,725 96,756 42.82 12,005 67.06 0.1268
2014-05-14 2014-03-31 13F NRG Energy COM NEW 629377508 225,969 216,821 2,370.15 7,186 2,632.32 0.0879
2014-01-31 2013-12-31 13F NRG Energy COM NEW 629377508 9,148 -118,998 -92.86 263 -92.31 0.0033
2013-07-31 2013-06-30 13F NRG Energy COM NEW 629377508 128,146 128,146 3,421 0.0522
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
(%)
2026-05-14 2026-03-31 13F NRG ENERGY INC COM NRG ENERGY INC COM NEW Call 0 -100.00 0 -100.00 n/a n/a n/a
2026-02-17 2025-12-31 13F NRG ENERGY INC COM NRG ENERGY INC COM NEW Call 69,500 -54.00 11,067 -54.77 n/a n/a n/a
2025-11-13 2025-09-30 13F NRG ENERGY COM NEW Call 151,100 97.00 24,471 98.68 n/a n/a n/a
2025-08-13 2025-06-30 13F NRG ENERGY COM NEW Call 76,700 -35.98 12,316 7.69 n/a n/a n/a
2025-05-14 2025-03-31 13F NRG ENERGY COM NEW Call 119,800 -44.15 11,436 -40.91 n/a n/a n/a
2025-02-13 2024-12-31 13F NRG ENERGY COM NEW Call 214,500 -44.37 19,352 -44.91 n/a n/a n/a
2024-11-13 2024-09-30 13F NRG ENERGY COM NEW Call 385,600 -20.92 35,128 -7.47 n/a n/a n/a
2024-08-13 2024-06-30 13F NRG ENERGY COM NEW Call 487,600 218.48 37,965 266.34 n/a n/a n/a
2024-05-15 2024-03-31 13F NRG ENERGY COM NEW Call 153,100 219.62 10,363 318.54 n/a n/a n/a
2024-02-14 2023-12-31 13F NRG ENERGY COM NEW Call 47,900 40.47 2,476 88.58 n/a n/a n/a
2023-11-14 2023-09-30 13F NRG ENERGY COM NEW Call 34,100 -38.67 1,314 -36.81 n/a n/a n/a
2023-08-14 2023-06-30 13F NRG ENERGY COM NEW Call 55,600 -52.80 2,079 -48.55 n/a n/a n/a
2023-05-15 2023-03-31 13F NRG ENERGY COM NEW Call 117,800 4,039 n/a n/a n/a
2023-02-13 2022-12-31 13F NRG ENERGY COM NEW Call 0 -100.00 0 -100.00 n/a n/a n/a
2022-11-14 2022-09-30 13F NRG ENERGY COM NEW Call 12,900 -11.03 494 -10.85 n/a n/a n/a
2022-08-12 2022-06-30 13F NRG ENERGY COM NEW Call 14,500 -80.64 553 -80.75 n/a n/a n/a
2022-05-12 2022-03-31 13F NRG ENERGY COM NEW Call 74,900 -38.40 2,873 -45.15 n/a n/a n/a
2022-02-10 2021-12-31 13F NRG ENERGY COM NEW Call 121,600 66.80 5,239 76.01 n/a n/a n/a
2021-11-12 2021-09-30 13F NRG ENERGY COM NEW Call 72,900 2,977 n/a n/a n/a
2020-05-13 2020-03-31 13F NRG Energy COM NEW Call 0 -100.00 0 -100.00 n/a n/a n/a
2020-02-13 2019-12-31 13F NRG Energy COM NEW Call 13,800 549 n/a n/a n/a
2018-05-15 2018-03-31 13F NRG Energy COM NEW Call 0 -100.00 0 -100.00 n/a n/a n/a
2018-02-09 2017-12-31 13F NRG Energy COM NEW Call 22,300 -28.75 635 -20.72 n/a n/a n/a
2017-11-13 2017-09-30 13F NRG Energy COM NEW Call 31,300 801 n/a n/a n/a
2016-05-02 2016-03-31 13F NRG Energy COM NEW Call 0 -100.00 0 -100.00 n/a n/a n/a
2016-01-28 2015-12-31 13F NRG Energy COM NEW Call 49,400 581 n/a n/a n/a
2015-07-28 2015-06-30 13F NRG Energy COM NEW Call 0 -100.00 0 -100.00 n/a n/a n/a
2015-04-28 2015-03-31 13F NRG Energy COM NEW Call 34,400 867 n/a n/a n/a
2015-01-28 2014-12-31 13F NRG Energy COM NEW Call 0 -100.00 0 -100.00 n/a n/a n/a
2014-10-31 2014-09-30 13F NRG Energy COM NEW Call 34,300 -27.64 1,045 -40.73 n/a n/a n/a
2014-08-01 2014-06-30 13F NRG Energy COM NEW Call 47,400 27.08 1,763 64.61 n/a n/a n/a
2014-01-31 2013-12-31 13F NRG Energy COM NEW Call 37,300 0.00 1,071 5.10 n/a n/a n/a
2013-10-31 2013-09-30 13F NRG Energy COM NEW Call 37,300 0.00 1,019 2.31 n/a n/a n/a
2013-07-31 2013-06-30 13F NRG Energy COM NEW Call 37,300 996 n/a n/a n/a
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
(%)
2026-05-14 2026-03-31 13F NRG ENERGY INC COM NRG ENERGY INC COM NEW Put 0 -100.00 0 -100.00 n/a n/a n/a
2026-02-17 2025-12-31 13F NRG ENERGY INC COM NRG ENERGY INC COM NEW Put 76,400 -37.68 12,166 -38.73 n/a n/a n/a
2025-11-13 2025-09-30 13F NRG ENERGY COM NEW Put 122,600 84.64 19,855 86.22 n/a n/a n/a
2025-08-13 2025-06-30 13F NRG ENERGY COM NEW Put 66,400 -39.42 10,663 1.91 n/a n/a n/a
2025-05-14 2025-03-31 13F NRG ENERGY COM NEW Put 109,600 -25.34 10,462 -21.01 n/a n/a n/a
2025-02-13 2024-12-31 13F NRG ENERGY COM NEW Put 146,800 -36.70 13,244 -37.31 n/a n/a n/a
2024-11-13 2024-09-30 13F NRG ENERGY COM NEW Put 231,900 -21.23 21,126 -7.83 n/a n/a n/a
2024-08-13 2024-06-30 13F NRG ENERGY COM NEW Put 294,400 397.30 22,922 472.02 n/a n/a n/a
2024-05-15 2024-03-31 13F NRG ENERGY COM NEW Put 59,200 38.32 4,007 81.15 n/a n/a n/a
2024-02-14 2023-12-31 13F NRG ENERGY COM NEW Put 42,800 151.76 2,213 238.23 n/a n/a n/a
2023-11-14 2023-09-30 13F NRG ENERGY COM NEW Put 17,000 -33.07 655 -31.09 n/a n/a n/a
2023-08-14 2023-06-30 13F NRG ENERGY COM NEW Put 25,400 -78.33 950 -76.38 n/a n/a n/a
2023-05-15 2023-03-31 13F NRG ENERGY COM NEW Put 117,200 4,019 n/a n/a n/a
2022-08-12 2022-06-30 13F NRG ENERGY COM NEW Put 0 -100.00 0 -100.00 n/a n/a n/a
2022-05-12 2022-03-31 13F NRG ENERGY COM NEW Put 17,100 -53.66 656 -58.78 n/a n/a n/a
2022-02-10 2021-12-31 13F NRG ENERGY COM NEW Put 36,900 138.06 1,590 151.42 n/a n/a n/a
2021-11-12 2021-09-30 13F NRG ENERGY COM NEW Put 15,500 633 n/a n/a n/a
2020-05-13 2020-03-31 13F NRG Energy COM NEW Put 0 -100.00 0 -100.00 n/a n/a n/a
2020-02-13 2019-12-31 13F NRG Energy COM NEW Put 5,500 219 n/a n/a n/a
2018-05-15 2018-03-31 13F NRG Energy COM NEW Put 0 -100.00 0 -100.00 n/a n/a n/a
2018-02-09 2017-12-31 13F NRG Energy COM NEW Put 34,400 -19.06 980 -9.93 n/a n/a n/a
2017-11-13 2017-09-30 13F NRG Energy COM NEW Put 42,500 1,088 n/a n/a n/a
2016-05-02 2016-03-31 13F NRG Energy COM NEW Put 0 -100.00 0 -100.00 n/a n/a n/a
2016-01-28 2015-12-31 13F NRG Energy COM NEW Put 33,400 39.17 393 10.39 n/a n/a n/a
2015-10-27 2015-09-30 13F NRG Energy COM NEW Put 24,000 356 n/a n/a n/a
2015-07-28 2015-06-30 13F NRG Energy COM NEW Put 0 -100.00 0 -100.00 n/a n/a n/a
2015-04-28 2015-03-31 13F NRG Energy COM NEW Put 25,800 650 n/a n/a n/a
2014-10-31 2014-09-30 13F NRG Energy COM NEW Put 0 -100.00 0 -100.00 n/a n/a n/a
2014-08-01 2014-06-30 13F NRG Energy COM NEW Put 21,100 785 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.