XOOMAR

Vistra Corp. (VST)

Every FINRA and SEC series the site collects for Vistra Corp.: short interest with days to cover, daily short sale volume, fails to deliver and Form 4 insider trades. Listed on NYSE, classified by the SEC as electric services.

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10.8M

Short interest

settlement 2026-08-31

2.7

Days to cover

+11.8% vs prior

45.2%

Short share of volume

2026-09-11

9

Fails to deliver

settlement 2026-08-13

-$5.2M

Insider flow, 90 days

3 buys, 3 sells

As of 2026-09-11.

Short interest

FINRA, twice a month; the last 12 months shown, all 48 settlements in the JSON

As of 31 August 2026, short interest in VST is 10,778,003 shares, up 2,097,750 shares over the last month. Over the last 48 readings it ranged from 6,284,529 shares (15 April 2025) to 15,917,274 shares (30 June 2026). At the reported average volume of 4.0M shares a day that is 2.7 days to cover.

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SettlementShares shortChangeAvg daily volumeDays to cover
2026-08-3110,778,003+11.8%4,031,7002.67
2026-08-149,636,577+11.0%5,142,5961.87
2026-07-318,680,253-31.1%4,235,1042.05
2026-07-1512,604,861-20.8%3,981,1673.17
2026-06-3015,917,274+3.6%4,607,9913.45
2026-06-1515,362,632-2.2%4,193,9223.66
2026-05-2915,703,702+16.9%5,953,7922.64
2026-05-1513,438,308+7.8%5,822,7042.31
2026-04-3012,471,471+11.0%3,820,9353.26
2026-04-1511,237,560+20.4%3,392,0873.31
2026-03-319,333,104+5.8%4,559,8672.05
2026-03-138,823,320-10.9%4,912,0501.80
2026-02-279,901,441-2.2%4,652,4922.13
2026-02-1310,122,195+4.9%6,964,4211.45
2026-01-309,647,855+7.0%5,668,1651.70
2026-01-159,012,962+15.2%6,904,1461.31
2025-12-317,826,489+10.5%4,056,3631.93
2025-12-157,080,329-8.9%4,273,4821.66
2025-11-287,769,224+9.3%3,867,7502.01
2025-11-147,107,929-10.2%4,730,6111.50
2025-10-317,917,745+15.9%4,891,5241.62
2025-10-156,833,443-15.8%4,369,4221.56
2025-09-308,116,860+12.0%5,165,8861.57
2025-09-157,249,187-2.0%4,632,6751.56

Daily short volume

FINRA Reg SHO, last 60 sessions. JSON

As of 11 September 2026, the short share of VST volume is 45.2%, down 2.2 points over the last five sessions. Over the last 52 readings it ranged from 27.8% (10 July 2026) to 62.0% (31 July 2026). The latest reading is in line with the 30-session average of 46.2%, on 1.3M shares reported.

DateShort volumeTotal volumeShort shareExempt
2026-09-11566K1.3M45.2%225
2026-09-101.1M2.0M55.9%921
2026-09-09655K1.5M42.5%2,264
2026-09-081.2M3.2M35.9%769
2026-09-04812K2.1M39.2%1,741
2026-09-03975K2.1M47.4%54
2026-09-02846K2.1M40.7%9,452
2026-09-01758K1.9M39.5%2,883
2026-08-31642K1.4M47.6%936
2026-08-28588K1.4M42.4%3,910
2026-08-27461K1.3M35.9%5,339
2026-08-26584K1.4M40.7%3,252
2026-08-25633K1.7M37.2%7,200
2026-08-24605K1.9M31.9%2,066
2026-08-21850K1.9M44.3%13
2026-08-20695K1.6M42.5%6,906
2026-08-19809K1.8M45.9%315
2026-08-18974K1.9M50.3%1,587
2026-08-171.3M2.2M61.9%827
2026-08-14471K1.3M35.9%2,025
2026-08-13734K1.3M57.7%1,449
2026-08-12592K1.2M49.5%6,091
2026-08-11896K1.7M53.4%153
2026-08-101.2M2.0M61.5%280
2026-08-072.1M3.5M59.4%5,830
2026-08-06987K2.0M50.0%1,101
2026-08-051.0M2.5M39.7%4,077
2026-08-042.3M5.0M45.9%360
2026-08-03853K1.9M45.5%243
2026-07-31861K1.4M62.0%2,755

Fails to deliver

SEC, by settlement date. JSON

As of 13 August 2026, the fails-to-deliver balance in VST is 9 shares, down 451 shares over the last settlement date. Over the last 52 readings it ranged from 2 shares (22 January 2026) to 21,392 shares (7 July 2026). The latest reading sits at the bottom of that range.

SettlementShares failedPriceValue
2026-08-139$146.68$1K
2026-08-04460$155.94$72K
2026-07-31100$148.62$15K
2026-07-30200$142.81$29K
2026-07-27600$163.38$98K
2026-07-08408$155.73$64K
2026-07-0721,392$157.22$3.4M
2026-07-0210$153.16$2K
2026-07-0110$158.63$2K
2026-06-3049$162.38$8K
2026-06-29312$163.49$51K
2026-06-268,412$167.77$1.4M
2026-06-22600$163.75$98K
2026-06-181,200$158.83$191K
2026-06-165,495$153.52$844K
2026-06-151,484$148.02$220K
2026-06-01254$160.23$41K
2026-05-2978$160.28$13K
2026-05-28125$160.15$20K
2026-05-27251$164.56$41K
2026-05-261,800$156.27$281K
2026-05-2010,091$134.71$1.4M
2026-05-131,539$146.87$226K
2026-05-011,643$157.84$259K
2026-04-271,900$164.35$312K
2026-04-153$163.97$492
2026-03-30700$155.48$109K
2026-03-2532$152.72$5K
2026-03-2313$146.02$2K
2026-02-271,147$176.82$203K

Insider trades

SEC Form 4, newest first, 50 of 100 shown. JSON

Over the last 90 days VST insiders reported 3 open-market buys ($1.2M) against 3 sells ($6.3M), so the dollar flow leans toward selling. Latest filing: BURKE JAMES A (President and CEO) on 2026-09-01.

DateInsiderTitleTypeSharesPriceValueOwned after
2026-09-01BURKE JAMES APresident and CEOBuy4K$135.25$604K1.1M
2026-08-31BURKE JAMES APresident and CEOBuy2K$135.99$299K1.1M
2026-08-24BURKE JAMES APresident and CEOBuy2K$135.00$270K1.1M
2026-06-18SULT JOHN RDirectorSell7K$170.00$1.1M71K
2026-06-18Acosta Arcilian/aSell8K$165.04$1.2M40K
2026-06-16HELM SCOTT BDirectorSell25K$160.00$4.0M232K
2026-06-15BARBAS PAUL Mn/aSell244$153.00$37K53K
2026-06-12BARBAS PAUL Mn/aSell244$147.93$36K53K
2026-06-02Montemayor MargaretSVP, Chief Accounting OfficerSell5K$160.00$736K10K
2026-05-27Montemayor MargaretSVP, Chief Accounting OfficerSell5K$164.96$825K14K
2026-05-15Walters Robert Charlesn/aGrant1K$0.00$02K
2026-05-15SULT JOHN Rn/aGrant1K$0.00$077K
2026-05-15Pitesa John Williamn/aGrant1K$0.00$06K
2026-05-15Lagacy Julie A.n/aGrant1K$0.00$021K
2026-05-15HELM SCOTT Bn/aGrant2K$0.00$0257K
2026-05-15Crutchfield Lisan/aGrant1K$0.00$035K
2026-05-15Baiera Gavin R.n/aGrant1K$0.00$052K
2026-05-15BARBAS PAUL Mn/aGrant1K$0.00$053K
2026-05-15Acosta Arcilian/aGrant1K$0.00$048K
2026-05-15Ackermann Hilary E.n/aGrant1K$0.00$069K
2026-03-09Moore Stephanie ZapataEVP and General CounselSell10K$160.31$1.6M114K
2026-03-05Moore Stephanie ZapataEVP and General CounselTax withholding2K$167.40$329K124K
2026-03-05Moore Stephanie ZapataEVP and General CounselGrant5K$0.00$0126K
2026-03-05Montemayor MargaretSVP, Chief Accounting OfficerTax withholding561$167.40$94K19K
2026-03-05Montemayor MargaretSVP, Chief Accounting OfficerGrant2K$0.00$020K
2026-03-05Moldovan Kristopher E.EVP and CFOTax withholding4K$167.40$707K245K
2026-03-05Moldovan Kristopher E.EVP and CFOGrant11K$0.00$0249K
2026-03-05HUDSON SCOTT AEVP &amp; President Vistra RetailTax withholding3K$167.40$475K376K
2026-03-05HUDSON SCOTT AEVP &amp; President Vistra RetailGrant6K$0.00$0378K
2026-03-05Dore Stacey HEVP &amp; Chief Strategy OfficerTax withholding4K$167.40$701K184K
2026-03-05Dore Stacey HEVP &amp; Chief Strategy OfficerGrant13K$0.00$0188K
2026-03-05BURKE JAMES APresident and CEOTax withholding9K$167.40$1.6M498K
2026-03-05BURKE JAMES APresident and CEOGrant28K$0.00$0507K
2026-02-24Moore Stephanie ZapataEVP and General CounselTax withholding4K$171.62$732K121K
2026-02-24Moore Stephanie ZapataEVP and General CounselTax withholding30K$171.62$5.2M125K
2026-02-24Moore Stephanie ZapataEVP and General CounselGrant79K$171.62$13.6M156K
2026-02-24Moldovan Kristopher E.EVP and CFOTax withholding7K$171.62$1.3M239K
2026-02-24Moldovan Kristopher E.EVP and CFOTax withholding53K$171.62$9.1M246K
2026-02-24Moldovan Kristopher E.EVP and CFOGrant137K$171.62$23.5M299K
2026-02-24Kirby Carrie LeeEVP and Chief Admin. OfficerTax withholding4K$171.62$732K263K
2026-02-24Kirby Carrie LeeEVP and Chief Admin. OfficerTax withholding30K$171.62$5.2M267K
2026-02-24Kirby Carrie LeeEVP and Chief Admin. OfficerGrant79K$171.62$13.6M298K
2026-02-24HUDSON SCOTT AEVP &amp; President Vistra RetailTax withholding6K$171.62$1.1M372K
2026-02-24HUDSON SCOTT AEVP &amp; President Vistra RetailTax withholding45K$171.62$7.8M379K
2026-02-24HUDSON SCOTT AEVP &amp; President Vistra RetailGrant117K$171.62$20.1M424K
2026-02-24Dore Stacey HEVP &amp; Chief Strategy OfficerTax withholding7K$171.62$1.2M176K
2026-02-24Dore Stacey HEVP &amp; Chief Strategy OfficerTax withholding52K$171.62$8.9M183K
2026-02-24Dore Stacey HEVP &amp; Chief Strategy OfficerGrant134K$171.62$23.1M235K
2026-02-24BURKE JAMES APresident and CEOTax withholding14K$171.62$2.4M479K
2026-02-24BURKE JAMES APresident and CEOTax withholding125K$171.62$21.5M493K

Form 4 filings are due within two business days of the trade. Insiders sell for many reasons that say nothing about the company; open-market buys are the rarer, stronger signal.

Planned sales (Form 144)

Newest first. JSON

1 Form 144 notice on file for VST worth $3.0M at the prices reported; 1 in the last 90 days worth $3.0M. Latest: Moldovan Kristopher E. filed on 2026-09-08 to sell 20,000 shares ($3.0M) from 2026-09-08.

FiledSellerSharesMarket valueOf outstandingSale fromBroker
2026-09-08Moldovan Kristopher E.Officer20K$3.0M0.006%2026-09-08UBS Financial Services Inc.

Large holders (13D and 13G)

One row per reporting person, newest filing first. JSON

1 holder above 5% has filed on VST, all on Schedule 13G (passive). The largest reported stake is STATE STREET CORPORATION at 5.0% of the class (16,867,244 shares), filed 2026-08-07 for an event on 2026-06-30.

FiledFormHolderSharesOf classEvent
2026-08-0713GSTATE STREET CORPORATIONparent holding company16.9M5.0%2026-06-30

13F holders

Tracked managers holding VST at their latest 13F. JSON

11 of the 30 tracked managers held VST at their latest 13F, $2.13B in total at quarter-end prices. Citadel Advisors is the largest at $790.5M (0.1% of its portfolio) as of 2026-06-30. Over the prior quarter 7 added shares and 4 cut.

FundQuarterSharesValueOf portfolioChange in shares
Citadel Advisors2026-06-305.0M$790.5M0.09%+1.5M
Appaloosa LP2026-06-302.2M$351.4M4.55%+193K
Point72 Asset Management2026-06-301.7M$265.9M0.29%+611K
D. E. Shaw & Co.2026-06-301.4M$214.9M0.10%+761K
Millennium Management2026-06-301.3M$206.8M0.07%-77K
Renaissance Technologies2026-06-30765K$121.4M0.17%-297K
Bridgewater Associates2026-06-30752K$119.2M0.49%+403K
AQR Capital Management2026-06-30290K$46.0M0.02%+138K
Two Sigma Investments2026-06-30104K$16.4M0.01%-33K
Soros Fund Management2026-06-304K$670K0.01%-240K
Fisher Asset Management2026-06-301K$229K0.00%+77

Only the 30 tracked managers on the funds hub; a 13F reports long positions in US listed stock at quarter end, 45 days late, and says nothing about shorts or positions sold since.

Financials

SEC XBRL, as filed. JSON

In Q2 2026 (quarter ended 2026-06-30) Vistra Corp. reported revenue of $4.40B, up 17.3% from the same quarter a year earlier, and net income of $305.0M (0.76 diluted EPS). In FY 2025 it generated $4.07B of operating cash flow and spent $1.03B on buybacks and $306.0M on dividends. As of 2026-06-30, cash was $435.0M against $19.59B of debt.

Cash
$435.0M
Debt
$19.59B
Equity
$5.48B
Total assets
$42.60B
Shares outstanding
335,635,195

Quarterly, last 8 quarters

QuarterPeriod endRevenueNet incomeMarginDiluted EPS
Q2 20262026-06-30$4.40B$305.0M6.9%0.76
Q1 20262026-03-31$5.00B$1.03B20.6%2.87
Q4 2025derived2025-12-31$4.80B$233.0M4.8%n/a
Q3 20252025-09-30$4.78B$652.0M13.6%1.75
Q2 20252025-06-30$3.75B$327.0M8.7%0.81
Q1 20252025-03-31$4.25B-$268.0M-6.3%-0.93
Q4 2024derived2024-12-31$3.66B$441.0M12.0%n/a
Q3 20242024-09-30$4.34B$1.89B43.5%5.25

Fiscal years, with buybacks and dividends

Fiscal yearEndsRevenueNet incomeOperating cash flowCapexBuybacksDividends
FY 20252025-12-31$17.59B$944.0M$4.07B$2.75B$1.03B$306.0M
FY 20242024-12-31$14.76B$2.66B$4.56B$2.08B$1.27B$305.0M
FY 20232023-12-31$13.80B$1.49B$5.45B$1.68B$1.25B$313.0M
FY 20222022-12-31$15.63B-$1.23B$485.0M$1.30B$1.95B$302.0M
FY 20212021-12-31$17.70B-$1.27B-$206.0M$1.03B$471.0M$290.0M

Quarters are the three-month figures the company reports; a fourth quarter marked derived is the fiscal year less the three reported quarters, since companies report it only inside the 10-K. Fiscal years are the annual figures. Buybacks are cash paid to repurchase common stock in the year (XBRL PaymentsForRepurchaseOfCommonStock), not authorizations. Balance sheet lines are as of 2026-06-30; shares outstanding as of 2026-08-03 from the cover page.

What this page is

Vistra Corp. in the regulatory record

Regulators publish company data in separate files that never sit next to each other: FINRA's twice-monthly short interest, its daily short sale volume, the SEC's fails-to-deliver counts, and each insider's Form 4. A company page pulls every series the site collects for one ticker onto one URL, keyed by the SEC's own ticker list, so the short position, the daily flow, the settlement fails and what insiders are doing can be read together.

Each section has its own history table, a summary sentence built from the rows (last value, change, range with dates) and its own JSON and CSV links. Nothing on the page is written by a model; the sentences change only when the data does. A page exists only for companies with data in at least two series, and every section says when its source last updated.

This page follows Vistra Corp. (VST), SEC CIK 1692819, listed on NYSE, classified by the SEC as electric services. The cross-market tables live on the short interest and insider transactions hubs.

Source and method

Short interest
FINRA consolidated short interestTwice a month, about eight business days after settlement. Latest 2026-08-31.JSON and CSV
Daily short volume
FINRA Reg SHO daily filesEvery trading day, loaded the following morning. Latest 2026-09-11.JSON and CSV
Fails to deliver
SEC fails-to-deliver dataTwice a month, a few weeks after the half month ends. Latest 2026-08-13.JSON and CSV
Planned sales
SEC EDGAR Form 144EDGAR read every 30 minutes; a notice is filed on or before the sell order. Latest 2026-09-08.JSON and CSV
Large holders
SEC EDGAR Schedule 13D and 13GEDGAR read every 30 minutes; 13D within five business days of crossing 5%, 13G on the passive schedule. Latest 2026-08-07.JSON and CSV
13F holders
SEC EDGAR Form 13F-HRQuarterly, filed within 45 days of quarter end; 30 tracked managers. Latest 2026-06-30.JSON and CSV
Financials
SEC XBRL company factsRefreshed weekly from the SEC's structured data; values are as filed in the 10-Q and 10-K. Latest 2026-06-30.JSON and CSV
Insider trades
SEC EDGAR Form 4EDGAR read every 30 minutes; filings are due two business days after the trade. Latest 2026-09-01.JSON and CSV
Company record
EDGAR filing index for CIK 1692819Ticker, name and exchange from the SEC's company list, refreshed weekly.
Rate limits
30 requests a minute without a key, 120 a minute with a key from a free account.

Data checks. Every dataset is checked against its source once a day. This dataset passed the last run, 14 Sep 05:40 UTC.

How to read it

  • Read the position against the flow: rising short interest with a high daily short share is new shorting; rising short interest with a normal short share is old shorts holding on.
  • Insider buys next to a crowded short are the combination that has historically preceded squeezes; insider sells next to a crowded short are common and mean little.
  • Fails to deliver matter relative to the float, not in absolute shares; a million failed shares in a mega cap is noise.

Analysis of what the data shows, not advice. XOOMAR does not recommend buying, selling or holding anything.

Datasets

Frequently Asked Questions

How much of VST is sold short?
10,778,003 shares were held short at the 2026-08-31 settlement, 2.7 days of average volume. FINRA publishes the next count about eight business days after the 15th and the last business day of the month.
What is VST's daily short volume?
On 2026-09-11, 566,155 of the 1,253,070 VST shares reported to FINRA were sold short, 45.2% of the day's reported volume. Short volume is a flow for one day, not a position.
Does VST have fails to deliver?
The SEC's latest file shows 9 VST shares failed to deliver at settlement 2026-08-13. Fails are reported per settlement date and published twice a month with a lag.
Are VST insiders buying or selling?
Over the last 90 days VST insiders reported 3 open-market buys ($1.2M) against 3 sells ($6.3M), so the dollar flow leans toward selling. Latest filing: BURKE JAMES A (President and CEO) on 2026-09-01.
Have VST insiders filed to sell?
1 Form 144 notice on file for VST worth $3.0M at the prices reported; 1 in the last 90 days worth $3.0M. Latest: Moldovan Kristopher E. filed on 2026-09-08 to sell 20,000 shares ($3.0M) from 2026-09-08.
Who owns more than 5% of VST?
1 holder above 5% has filed on VST, all on Schedule 13G (passive). The largest reported stake is STATE STREET CORPORATION at 5.0% of the class (16,867,244 shares), filed 2026-08-07 for an event on 2026-06-30.
What did VST report last quarter?
In Q2 2026 (quarter ended 2026-06-30) Vistra Corp. reported revenue of $4.40B, up 17.3% from the same quarter a year earlier, and net income of $305.0M (0.76 diluted EPS). In FY 2025 it generated $4.07B of operating cash flow and spent $1.03B on buybacks and $306.0M on dividends. As of 2026-06-30, cash was $435.0M against $19.59B of debt.
Which funds hold VST?
11 of the 30 tracked managers held VST at their latest 13F, $2.13B in total at quarter-end prices. Citadel Advisors is the largest at $790.5M (0.1% of its portfolio) as of 2026-06-30. Over the prior quarter 7 added shares and 4 cut.

Data on this page is provided for informational purposes only and is not financial advice. See our editorial policy.