아담스 천연 자원 기금, Inc.
US ˙ NYSE ˙ US00548F1057

SecurityPEO / Adams Natural Resources Fund, Inc.
InstitutionCss Llc/il
Latest Disclosed Ownership74,495 shares
Latest Disclosed Value $ 2,070,961
Css Llc/il ownership in PEO / Adams Natural Resources Fund, Inc.

On May 15, 2026 - Css Llc/il filed a 13F-HR form disclosing ownership of 74,495 shares of Adams Natural Resources Fund, Inc. (US:PEO) valued at $2,070,961 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 99,468 shares of Adams Natural Resources Fund, Inc.. This represents a change in shares of -25.11% during the quarter. The current value of the position is $1,977,097 USD.

Css Llc/il has a history of taking positions in derivatives of the underlying security (PEO) 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.

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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.

PEO / Adams Natural Resources Fund, 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 ADAM NAT RES FD COM 00548F105 74,495 -24,973 -25.11 2,071 -4.26 0.0992
2026-02-17 2025-12-31 13F ADAM NAT RES FD COM 00548F105 99,468 -13,821 -12.20 2,162 -11.28 0.0961
2025-11-13 2025-09-30 13F ADAM NAT RES FD COM 00548F105 113,289 -5,904 -4.95 2,438 -4.32 0.1094
2025-08-14 2025-06-30 13F ADAM NAT RES FD COM 00548F105 119,193 -3,327 -2.72 2,547 -8.84 0.1188
2025-05-15 2025-03-31 13F ADAM NAT RES FD COM 00548F105 122,520 -33,167 -21.30 2,795 -17.43 0.1534
2025-02-18 2024-12-31 13F ADAM NAT RES FD COM 00548F105 155,687 -39,333 -20.17 3,385 -25.27 0.1494
2024-11-14 2024-09-30 13F ADAM NAT RES FD COM 00548F105 195,020 -111,637 -36.40 4,528 -37.46 0.2072
2024-08-14 2024-06-30 13F ADAM NAT RES FD COM 00548F105 306,657 -31,894 -9.42 7,240 -7.25 0.3702
2024-05-15 2024-03-31 13F ADAM NAT RES FD COM 00548F105 338,551 -16,228 -4.57 7,807 6.65 0.4507
2024-02-14 2023-12-31 13F ADAM NAT RES FD COM 00548F105 354,779 -40,245 -10.19 7,319 -19.85 0.4230
2023-11-14 2023-09-30 13F ADAM NAT RES FD COM 00548F105 395,024 -140,597 -26.25 9,133 -18.11 0.5992
2023-08-14 2023-06-30 13F ADAM NAT RES FD COM 00548F105 535,621 -12,847 -2.34 11,152 -1.11 0.6901
2023-05-15 2023-03-31 13F ADAM NAT RES FD COM 00548F105 548,468 4,061 0.75 11,277 -4.99 0.7443
2023-02-14 2022-12-31 13F ADAM NAT RES FD COM 00548F105 544,407 47,509 9.56 11,868 22.73 0.6717
2022-11-14 2022-09-30 13F ADAM NAT RES FD COM 00548F105 496,898 -50,899 -9.29 9,670 -9.34 0.4547
2022-08-15 2022-06-30 13F ADAM NAT RES FD COM 00548F105 547,797 11,391 2.12 10,666 -5.00 0.4349
2022-05-16 2022-03-31 13F ADAM NAT RES FD COM 00548F105 536,406 6,321 1.19 11,227 28.21 0.4065
2022-02-14 2021-12-31 13F ADAM NAT RES FD COM 00548F105 530,085 -3,290 -0.62 8,757 4.64 0.3112
2021-11-15 2021-09-30 13F ADAM NAT RES FD COM 00548F105 533,375 -4,799 -0.89 8,369 -4.00 0.3561
2021-08-16 2021-06-30 13F ADAM NAT RES FD COM 00548F105 538,174 -44,085 -7.57 8,718 1.79 0.3609
2021-05-17 2021-03-31 13F ADAM NAT RES FD COM 00548F105 582,259 1,488 0.26 8,565 29.71 0.3523
2021-02-16 2020-12-31 13F ADAM NAT RES FD COM 00548F105 580,771 89,969 18.33 6,603 37.56 0.2530
2020-11-16 2020-09-30 13F ADAM NAT RES FD COM 00548F105 490,802 211,341 75.62 4,800 51.18 0.2269
2020-08-14 2020-06-30 13F ADAM NAT RES FD COM 00548F105 279,461 240,008 608.34 3,175 870.95 0.1798
2020-05-15 2020-03-31 13F ADAM NAT RES FD COM 00548F105 39,453 -24,779 -38.58 327 -69.06 0.0258
2020-02-14 2019-12-31 13F ADAM NAT RES FD COM 00548F105 64,232 -33,968 -34.59 1,057 -32.03 0.0585
2019-11-14 2019-09-30 13F ADAM NAT RES FD COM 00548F105 98,200 -644 -0.65 1,555 -4.89 0.0999
2019-08-14 2019-06-30 13F ADAM NAT RES FD COM 00548F105 98,844 -3,432 -3.36 1,635 -4.66 0.0940
2019-05-15 2019-03-31 13F ADAM NAT RES FD COM 00548F105 102,276 2,608 2.62 1,715 18.11 0.1029
2019-02-14 2018-12-31 13F ADAM NAT RES FD COM 00548F105 99,668 29,244 41.53 1,452 3.42 0.0973
2018-11-14 2018-09-30 13F ADAM NAT RES FD COM 00548F105 70,424 7,531 11.97 1,404 11.16 0.0598
2018-08-14 2018-06-30 13F ADAM NAT RES FD COM 00548F105 62,893 308 0.49 1,263 10.89 0.0591
2018-05-15 2018-03-31 13F ADAM NAT RES FD COM 00548F105 62,585 337 0.54 1,139 -7.77 0.0566
2018-02-14 2017-12-31 13F ADAM NAT RES FD COM 00548F105 62,248 2,787 4.69 1,235 5.74 0.0607
2017-11-14 2017-09-30 13F ADAM NAT RES FD COM 00548F105 59,461 -2,040 -3.32 1,168 1.57 0.0571
2017-08-14 2017-06-30 13F ADAM NAT RES FD COM 00548F105 61,501 -400 -0.65 1,150 -4.33 0.0558
2017-05-15 2017-03-31 13F ADAM NAT RES FD COM 00548F105 61,901 10,879 21.32 1,202 16.81 0.0720
2017-02-14 2016-12-31 13F ADAM NAT RES FD COM 00548F105 51,022 17,910 54.09 1,029 55.91 0.0562
2016-11-14 2016-09-30 13F ADAM NAT RES FD COM 00548F105 33,112 0 0.00 660 -0.90 0.0319
2016-08-15 2016-06-30 13F ADAM NAT RES FD COM 00548F105 33,112 -7,307 -18.08 666 -8.39 0.0445
2016-05-16 2016-03-31 13F ADAM NAT RES FD COM 00548F105 40,419 7,307 22.07 727 23.85 0.0447
2016-02-16 2015-12-31 13F ADAM NAT RES FD COM 00548F105 33,112 1,881 6.02 587 3.53 0.0349
2015-11-16 2015-09-30 13F ADAM NAT RES FD COM 00548F105 31,231 0 0.00 567 -18.65 0.0334
2015-08-14 2015-06-30 13F ADAM NAT RES FD COM 00548F105 31,231 0 0.00 697 -3.60 0.0325
2015-05-15 2015-03-31 13F ADAM NAT RES FD COM 00548F105 31,231 31,231 723 0.0367
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
(%)
2021-02-16 2020-12-31 13F ADAM NAT RES FD COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2020-11-16 2020-09-30 13F ADAM NAT RES FD COM Put 5,000 49 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.