Vistra Corp.
MX ˙ BMV ˙ US92840M1027
SecurityMX:VST / Vistra Corp.
InstitutionBoothbay Fund Management, Llc
Latest Disclosed Ownership61,524 shares
Latest Disclosed Value $ 9,248,903
Boothbay Fund Management, Llc ownership in VST / Vistra Corp.

On May 15, 2026 - Boothbay Fund Management, Llc filed a 13F-HR form disclosing ownership of 61,524 shares of Vistra Corp. (MX:VST) valued at $9,248,903 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 5,778 shares of Vistra Corp.. This represents a change in shares of 964.80% during the quarter.

Boothbay Fund Management, Llc has a history of taking positions in derivatives of the underlying security (VST) in the form of stock options. The firm currently holds call options representing 7,200 of underlying shares valued at $1,082,376 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:VST / Vistra Corp. 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 VISTRA COM 92840M102 61,524 55,746 964.80 9,249 892.27 0.1199
2026-02-17 2025-12-31 13F VISTRA COM 92840M102 5,778 3,291 132.33 932 91.38 0.0139
2025-11-14 2025-09-30 13F VISTRA COM 92840M102 2,487 -27,645 -91.75 487 -91.66 0.0071
2025-08-14 2025-06-30 13F VISTRA COM 92840M102 30,132 16,599 122.66 5,840 267.46 0.1135
2025-05-15 2025-03-31 13F VISTRA COM 92840M102 13,533 1,170 9.46 1,589 -6.75 0.0419
2025-02-14 2024-12-31 13F VISTRA COM 92840M102 12,363 3,307 36.52 1,704 58.81 0.0420
2024-11-14 2024-09-30 13F VISTRA COM 92840M102 9,056 -7,581 -45.57 1,073 -24.97 0.0244
2024-08-14 2024-06-30 13F VISTRA COM 92840M102 16,637 -2,412 -12.66 1,430 7.84 0.0339
2024-05-15 2024-03-31 13F VISTRA COM 92840M102 19,049 -30,784 -61.77 1,327 -30.90 0.0256
2024-02-14 2023-12-31 13F VISTRA COM 92840M102 49,833 11,440 29.80 1,920 50.75 0.0490
2023-11-14 2023-09-30 13F VISTRA COM 92840M102 38,393 38,393 1,274 0.0303
2023-05-15 2023-03-31 13F VISTRA COM 92840M102 0 -103,234 -100.00 0 -100.00
2023-02-14 2022-12-31 13F VISTRA COM 92840M102 103,234 -1,315 -1.26 2,395 9.06 0.0554
2022-11-14 2022-09-30 13F VISTRA COM 92840M102 104,549 41,335 65.39 2,196 52.08 0.0548
2022-08-15 2022-06-30 13F VISTRA COM 92840M102 63,214 -28 -0.04 1,444 -1.77 0.0380
2022-05-16 2022-03-31 13F VISTRA COM 92840M102 63,242 8,961 16.51 1,470 18.93 0.0342
2022-02-14 2021-12-31 13F VISTRA COM 92840M102 54,281 19,077 54.19 1,236 105.32 0.0291
2021-11-15 2021-09-30 13F VISTRA COM 92840M102 35,204 15,266 76.57 602 62.70 0.0167
2021-08-17 2021-06-30 13F/A-1 VISTRA COM 92840M102 19,938 19,938 370 0.0119
2021-08-16 2021-06-30 13F VISTRA COM 92840M102 19,938 19,938 370 0.0116
2021-02-12 2020-12-31 13F VISTRA COM 92840M102 0 -13,700 -100.00 0 -100.00
2020-11-16 2020-09-30 13F VISTRA COM 92840M102 13,700 -15,729 -53.45 258 -52.92 0.0156
2020-08-14 2020-06-30 13F VISTRA ENERGY COM 92840M102 29,429 29,429 114.81 548 112.40 0.0375
2019-08-14 2019-06-30 13F VISTRA ENERGY COM 92840M102 0 -22,969 -100.00 0 -100.00
2019-05-15 2019-03-31 13F VISTRA ENERGY COM 92840M102 22,969 -6,137 -21.08 598 -10.21 0.0579
2019-02-14 2018-12-31 13F VISTRA ENERGY COM 92840M102 29,106 29,106 26.72 666 11.37 0.0971
2018-11-14 2018-09-30 13F VISTRA ENERGY COM 92840M102 0 -19,694 -100.00 0 -100.00
2018-08-14 2018-06-30 13F VISTRA ENERGY COM 92840M102 19,694 8,702 79.17 466 103.49 0.0406
2018-05-14 2018-03-31 13F VISTRA ENERGY COM 92840M102 10,992 10,992 229 0.0271
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 VISTRA COM Call 7,200 1,082 n/a n/a n/a
2025-11-14 2025-09-30 13F VISTRA COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2025-08-14 2025-06-30 13F VISTRA COM Call 27,000 5,233 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.