Expand Energy Corporation
MX ˙ BMV ˙ US1651677353
SecurityMX:EXE / Expand Energy Corporation
InstitutionParallax Volatility Advisers, L.P.
Latest Disclosed Ownership115,537 shares
Latest Disclosed Value $ 10,890,533
Parallax Volatility Advisers, L.P. ownership in EXE / Expand Energy Corporation

On May 15, 2026 - Parallax Volatility Advisers, L.P. filed a 13F-HR form disclosing ownership of 115,537 shares of Expand Energy Corporation (MX:EXE) valued at $10,890,533 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 88,095 shares of Expand Energy Corporation. This represents a change in shares of 31.15% during the quarter.

Parallax Volatility Advisers, L.P. has a history of taking positions in derivatives of the underlying security (EXE) in the form of stock options. The firm currently holds call options representing 50,700 of underlying shares valued at $4,778,982 USD and put options representing 715,000 of underlying shares valued at $67,395,900 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:EXE / Expand Energy Corporation 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 EXPAND ENERGY COM 165167735 115,537 27,442 31.15 10,891 12.01 0.0282
2026-02-17 2025-12-31 13F EXPAND ENERGY COM 165167735 88,095 69,349 369.94 9,722 388.30 0.0192
2025-11-14 2025-09-30 13F EXPAND ENERGY COM 165167735 18,746 17,623 1,569.28 1,992 1,419.85 0.0030
2025-08-14 2025-06-30 13F EXPAND ENERGY COM 165167735 1,123 1,123 131 0.0003
2024-05-15 2024-03-31 13F CHESAPEAKE ENERGY COM 165167735 0 -1,369 -100.00 0 -100.00
2024-02-14 2023-12-31 13F CHESAPEAKE ENERGY COM 165167735 1,369 -16,605 -92.38 105 -93.22 0.0002
2023-11-14 2023-09-30 13F CHESAPEAKE ENERGY COM 165167735 17,974 15,102 525.84 1,550 545.42 0.0035
2023-08-14 2023-06-30 13F CHESAPEAKE ENERGY COM 165167735 2,872 -14,884 -83.83 240 -82.22 0.0005
2023-05-15 2023-03-31 13F CHESAPEAKE ENERGY COM 165167735 17,756 9,013 103.09 1,350 63.64 0.0028
2023-02-27 2022-12-31 13F/A-1 CHESAPEAKE ENERGY COM 165167735 8,743 8,732 79,381.82 825 82,400.00 0.0013
2023-02-14 2022-12-31 13F CHESAPEAKE ENERGY COM 165167735 8,743 8,732 825 0.0013
2022-11-21 2022-09-30 13F/A-1 CHESAPEAKE ENERGY COM 165167735 11 0 0.00 1 0.00 0.0000
2022-11-14 2022-09-30 13F CHESAPEAKE ENERGY COM 165167735 11 0 1 0.0000
2022-08-17 2022-06-30 13F/A-1 CHESAPEAKE ENERGY COM 165167735 11 11 1 0.0000
2022-08-15 2022-06-30 13F CHESAPEAKE ENERGY COM 165167735 60,579 60,579 4,913 0.0059
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 EXPAND ENERGY COM Call 50,700 -22.00 4,779 -33.39 n/a n/a n/a
2026-02-17 2025-12-31 13F EXPAND ENERGY COM Call 65,000 324.84 7,173 341.42 n/a n/a n/a
2025-11-14 2025-09-30 13F EXPAND ENERGY COM Call 15,300 -66.30 1,625 -69.39 n/a n/a n/a
2025-08-14 2025-06-30 13F EXPAND ENERGY COM Call 45,400 -67.39 5,309 -65.74 n/a n/a n/a
2025-05-15 2025-03-31 13F EXPAND ENERGY COM Call 139,200 57.64 15,496 76.28 n/a n/a n/a
2025-02-14 2024-12-31 13F EXPAND ENERGY COM Call 88,300 -15.90 8,790 1.78 n/a n/a n/a
2024-11-14 2024-09-30 13F CHESAPEAKE ENERGY COM Call 105,000 40.00 8,636 40.10 n/a n/a n/a
2024-08-14 2024-06-30 13F CHESAPEAKE ENERGY COM Call 75,000 0.00 6,164 -7.48 n/a n/a n/a
2024-05-15 2024-03-31 13F CHESAPEAKE ENERGY COM Call 75,000 74,900.00 6,662 95,071.43 n/a n/a n/a
2024-02-14 2023-12-31 13F CHESAPEAKE ENERGY COM Call 100 -99.92 8 -99.94 n/a n/a n/a
2023-11-14 2023-09-30 13F CHESAPEAKE ENERGY COM Call 125,100 66.58 10,787 71.66 n/a n/a n/a
2023-08-14 2023-06-30 13F CHESAPEAKE ENERGY COM Call 75,100 24,933.33 6,284 28,463.64 n/a n/a n/a
2023-05-15 2023-03-31 13F CHESAPEAKE ENERGY COM Call 300 200.00 23 144.44 n/a n/a n/a
2023-02-27 2022-12-31 13F/A CHESAPEAKE ENERGY COM Call 100 -99.97 9 -99.97 n/a n/a n/a
2023-02-14 2022-12-31 13F CHESAPEAKE ENERGY COM Call 100 9 n/a n/a n/a
2022-11-21 2022-09-30 13F/A CHESAPEAKE ENERGY COM Call 380,200 284.43 35,819 346.57 n/a n/a n/a
2022-11-14 2022-09-30 13F CHESAPEAKE ENERGY COM Call 380,200 35,819 n/a n/a n/a
2022-08-17 2022-06-30 13F/A CHESAPEAKE ENERGY COM Call 98,900 8,021 n/a n/a n/a
2022-08-15 2022-06-30 13F CHESAPEAKE ENERGY COM Call 98,900 8,021 n/a n/a n/a
2022-02-14 2021-12-31 13F/A CHESAPEAKE ENERGY COM Call 0 0 n/a n/a n/a
2022-02-14 2021-12-31 13F/A CHESAPEAKE ENERGY COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2022-02-14 2021-12-31 13F CHESAPEAKE ENERGY COM Call 0 0 n/a n/a n/a
2021-11-15 2021-09-30 13F CHESAPEAKE ENERGY COM Call 60,000 3,695 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 EXPAND ENERGY COM Put 715,000 2,509.49 67,396 2,129.41 n/a n/a n/a
2026-02-17 2025-12-31 13F EXPAND ENERGY COM Put 27,400 -6.48 3,024 -2.86 n/a n/a n/a
2025-11-14 2025-09-30 13F EXPAND ENERGY COM Put 29,300 -7.28 3,113 -15.78 n/a n/a n/a
2025-08-14 2025-06-30 13F EXPAND ENERGY COM Put 31,600 -58.64 3,695 -56.55 n/a n/a n/a
2025-05-15 2025-03-31 13F EXPAND ENERGY COM Put 76,400 -4.50 8,505 6.78 n/a n/a n/a
2025-02-14 2024-12-31 13F EXPAND ENERGY COM Put 80,000 0.00 7,964 21.03 n/a n/a n/a
2024-11-14 2024-09-30 13F CHESAPEAKE ENERGY COM Put 80,000 6,580 n/a n/a n/a
2024-05-15 2024-03-31 13F CHESAPEAKE ENERGY COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2024-02-14 2023-12-31 13F CHESAPEAKE ENERGY COM Put 96,200 -50.97 7,402 -56.25 n/a n/a n/a
2023-11-14 2023-09-30 13F CHESAPEAKE ENERGY COM Put 196,200 103.95 16,918 110.16 n/a n/a n/a
2023-08-14 2023-06-30 13F CHESAPEAKE ENERGY COM Put 96,200 0.00 8,050 10.05 n/a n/a n/a
2023-05-15 2023-03-31 13F CHESAPEAKE ENERGY COM Put 96,200 19.65 7,315 -3.59 n/a n/a n/a
2023-02-27 2022-12-31 13F/A CHESAPEAKE ENERGY COM Put 80,400 0.00 7,587 0.17 n/a n/a n/a
2023-02-14 2022-12-31 13F CHESAPEAKE ENERGY COM Put 80,400 7,587 n/a n/a n/a
2022-11-21 2022-09-30 13F/A CHESAPEAKE ENERGY COM Put 80,400 7,574 n/a n/a n/a
2022-11-14 2022-09-30 13F CHESAPEAKE ENERGY COM Put 80,400 7,574 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.