United States Natural Gas Fund, LP - Limited Partnership
US ˙ ARCA

SecurityUNG / United States Natural Gas Fund, LP - Limited Partnership
InstitutionCitadel Advisors Llc
ManagerKen Griffin
Latest Disclosed Ownership0 shares
Latest Disclosed Value $ 0
Citadel Advisors Llc ownership in UNG / United States Natural Gas Fund, LP - Limited Partnership

On November 14, 2025 - Citadel Advisors Llc filed a 13F-HR form disclosing ownership of 0 shares of United States Natural Gas Fund, LP - Limited Partnership (US:UNG) valued at $0 USD as of September 30, 2025. The entity filed a previous 13F-HR on August 14, 2025 disclosing 147,317 shares of United States Natural Gas Fund, LP - Limited Partnership. This represents a change in shares of -100.00% during the quarter. The current value of the position is $0 USD.

Citadel Advisors Llc has a history of taking positions in derivatives of the underlying security (UNG) in the form of stock options. The firm currently holds call options representing 2,013,200 of underlying shares valued at $23,614,836 USD and put options representing 1,177,600 of underlying shares valued at $13,813,248 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.

UNG / United States Natural Gas Fund, LP - Limited Partnership 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)
2025-11-14 2025-09-30 13F UNITED STS NAT GAS FD UNIT PAR 912318409 0 -147,317 -100.00 0 -100.00
2025-08-14 2025-06-30 13F UNITED STS NAT GAS FD UNIT PAR 912318409 147,317 -256,149 -63.49 2,251 -74.18 0.0004
2025-05-15 2025-03-31 13F UNITED STS NAT GAS FD UNIT PAR 912318409 403,466 289,401 253.72 8,719 354.77 0.0017
2025-02-14 2024-12-31 13F UNITED STS NAT GAS FD UNIT PAR 912318409 114,065 -980,281 -89.58 1,917 -89.27 0.0003
2024-11-14 2024-09-30 13F UNITED STS NAT GAS FD UNIT PAR 912318409 1,094,346 1,094,346 17,871 0.0034
2024-08-14 2024-06-30 13F UNITED STS NAT GAS FD UNIT PAR 912318409 0 -2,214 -100.00 0 -100.00
2024-05-15 2024-03-31 13F UNITED STS NAT GAS FD UNIT PAR 912318409 2,214 2,214 32 0.0000
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
(%)
2026-05-15 2026-03-31 13F UNITED STS NAT GAS FD UNIT PAR Call 2,013,200 -4.84 23,615 -8.95 n/a n/a n/a
2026-02-17 2025-12-31 13F UNITED STS NAT GAS FD UNIT PAR Call 2,115,575 85.22 25,937 73.74 n/a n/a n/a
2025-11-14 2025-09-30 13F UNITED STS NAT GAS FD UNIT PAR Call 1,142,200 19.61 14,929 2.32 n/a n/a n/a
2025-08-14 2025-06-30 13F UNITED STS NAT GAS FD UNIT PAR Call 954,900 78.05 14,591 25.90 n/a n/a n/a
2025-05-15 2025-03-31 13F UNITED STS NAT GAS FD UNIT PAR Call 536,325 11.32 11,590 43.09 n/a n/a n/a
2025-02-14 2024-12-31 13F UNITED STS NAT GAS FD UNIT PAR Call 481,800 3.81 8,099 6.88 n/a n/a n/a
2024-11-14 2024-09-30 13F UNITED STS NAT GAS FD UNIT PAR Call 464,100 -36.89 7,579 -40.88 n/a n/a n/a
2024-08-14 2024-06-30 13F UNITED STS NAT GAS FD UNIT PAR Call 735,400 0.76 12,818 20.54 n/a n/a n/a
2024-05-15 2024-03-31 13F UNITED STS NAT GAS FD UNIT PAR Call 729,875 10,634 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
(%)
2026-05-15 2026-03-31 13F UNITED STS NAT GAS FD UNIT PAR Put 1,177,600 -13.92 13,813 -17.64 n/a n/a n/a
2026-02-17 2025-12-31 13F UNITED STS NAT GAS FD UNIT PAR Put 1,367,975 44.92 16,771 35.94 n/a n/a n/a
2025-11-14 2025-09-30 13F UNITED STS NAT GAS FD UNIT PAR Put 943,950 66.33 12,337 42.28 n/a n/a n/a
2025-08-14 2025-06-30 13F UNITED STS NAT GAS FD UNIT PAR Put 567,525 23.07 8,672 -12.98 n/a n/a n/a
2025-05-15 2025-03-31 13F UNITED STS NAT GAS FD UNIT PAR Put 461,125 29.91 9,965 67.01 n/a n/a n/a
2025-02-14 2024-12-31 13F UNITED STS NAT GAS FD UNIT PAR Put 354,950 -57.93 5,967 -56.70 n/a n/a n/a
2024-11-14 2024-09-30 13F UNITED STS NAT GAS FD UNIT PAR Put 843,750 141.66 13,778 126.43 n/a n/a n/a
2024-08-14 2024-06-30 13F UNITED STS NAT GAS FD UNIT PAR Put 349,150 -34.63 6,086 -21.80 n/a n/a n/a
2024-05-15 2024-03-31 13F UNITED STS NAT GAS FD UNIT PAR Put 534,100 7,782 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.