Largest Positive One-Day Changes for VST

How does VST usually behave after a large single-day up move in the stock price?

Using the 12 largest single-day up moves over the last 3 years in VST stock, the average move was +10.7% with the single largest daily move of +16.6% occurring on 20-Sep-2024. The following day, VST stock price averaged +0.5% gains, with up moves more frequent than down moves. The stock was up 58% of the time in that period one day after these significant moves. Earnings dates have been excluded from this analysis.

Catalysts

4 of the moves coincided with a company-issued press release.

1 Week After

The following week, VST stock price averaged 0.0% gains, with up moves and down moves occurring equally across 12 observations.

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Stock Price Performance - 12 Largest Positive One-Day Changes
		Before Event Date (Not Including Day of Selected Event)					Day of Event					After Event Date (Not Including Day of Selected Event)					Custom Range▾
Date	Note	2 Weeks	1 Week	3 Days	2 Days	1 Day	Day-Of Move	Opening Gap	% Open-to-High	% Open-to-Low	Drift Open-to-Close	1 Day	2 Days	3 Days	1 Week	2 Weeks	2 Days Before to 2 Days After
9-Jan-2026 [Stock +10.5%]	Press Release Vistra and Meta Announce Agreements to Support Nuclear Plants in PJM and Add New Nuclear Generation to the Grid (9-Jan-2026, 6:00 AM PRNewswire) Headlines Meta strikes three big nuclear power deals to support AI ambitions (9-Jan-2026, 12:00 AM Seeking Alpha News) Meta strikes three big nuclear power deals to support AI ambitions; Vistra, Oklo shares surge (9-Jan-2026, 12:00 AM Seeking Alpha News) Biggest stock movers Friday: INTC, QCOM, OKLO, and more (9-Jan-2026, 12:00 AM Seeking Alpha News)						+10.5%
10-Sep-2025 [Stock +8.0%]							+8.0%
12-May-2025 [Stock +7.6%]	Large Market GainSPY had a large gain on the day of +3.3%						+7.6%
9-Apr-2025 [Stock +15.5%]	Large Market GainSPY had a large gain on the day of +10.5%						+15.5%
30-Jan-2025 [Stock +13.6%]							+13.6%
28-Jan-2025 [Stock +9.2%]	Press Release Vistra to Report Full Year and Fourth Quarter 2024 Results on Feb. 27, 2025 (27-Jan-2025, 4:30 PM PRNewswire) Headlines Vistra, Constellation lead S&P losers as DeepSeek market rout takes down nuclear plays (27-Jan-2025, 12:00 AM Seeking Alpha News) Biggest stock movers Tuesday: NVDA, GGG, and more (28-Jan-2025, 12:00 AM Seeking Alpha News) Biggest stock movers Tuesday: JNPR, JBLU and more (28-Jan-2025, 12:00 AM Seeking Alpha News) Uranium price falls but equities mostly rebound after DeepSeek disrupts nuclear plays (28-Jan-2025, 12:00 AM Seeking Alpha News)						+9.2%
21-Jan-2025 [Stock +8.5%]	Headlines 4 stocks to watch on Friday: SLB, NVO and more (17-Jan-2025, 12:00 AM Seeking Alpha News) Vistra plunges on massive fire at Moss Landing plant in California (17-Jan-2025, 12:00 AM Seeking Alpha News) Nancy Pelosi discloses buys of Alphabet, Amazon, more; sells Apple (21-Jan-2025, 12:00 AM Seeking Alpha News) NRG Energy rips to all-time high as Evercore ISI upgrades (21-Jan-2025, 12:00 AM Seeking Alpha News) Vistra tops S&P 500 as evacuation order lifted in Moss Landing battery fire (21-Jan-2025, 12:00 AM Seeking Alpha News)						+8.5%
3-Jan-2025 [Stock +8.5%]	Headlines Vistra, Constellation Energy start new year atop S&P 500 leaderboard after banner 2024 (2-Jan-2025, 12:00 AM Seeking Alpha News) Biden eases rules for hydrogen tax credits worth billions (3-Jan-2025, 12:00 AM Seeking Alpha News) Biden eases rules for hydrogen tax credits in bid to boost sector ahead of Trump (3-Jan-2025, 12:00 AM Seeking Alpha News) Best and worst performing S&P 500 stocks in a rosy year for index (3-Jan-2025, 12:00 AM Seeking Alpha News) Top S&P, Nasdaq winners as Wall Street breaks losing streak with 2025 action underway (3-Jan-2025, 12:00 AM Seeking Alpha News)						+8.5%
2-Jan-2025 [Stock +8.6%]	Headlines Oil futures little changed for 2024; demand concerns dampen 2025 price outlook (31-Dec-2024, 12:00 AM Seeking Alpha News) Oil benchmarks little changed for 2024; demand concerns dampen 2025 price outlook (31-Dec-2024, 12:00 AM Seeking Alpha News) Vistra, Constellation Energy start new year atop S&P 500 leaderboard after banner 2024 (2-Jan-2025, 12:00 AM Seeking Alpha News)						+8.6%
21-Nov-2024 [Stock +7.7%]	Headlines Vistra prices $1.25B senior notes (20-Nov-2024, 12:00 AM Seeking Alpha News) Goldman’s Hedge Fund VIP List: AMZN, VST, CRM, BABA, and more (20-Nov-2024, 12:00 AM Seeking Alpha News) Talen Energy rallies after requesting FERC rehearing on rejected Amazon power pact (21-Nov-2024, 12:00 AM Seeking Alpha News)						+7.7%
20-Sep-2024 [Stock +16.6%]	Press Release TXU Energy Announces Recipients of 2024 Energy Leadership Awards (19-Sep-2024, 10:27 AM PRNewswire)						+16.6%
31-Jul-2024 [Stock +14.8%]	Press Releases Homefield Energy Contracts with U.S. General Services Administration to Advance Sustainability Goals (30-Jul-2024, 10:00 AM PRNewswire) Vistra Receives Approval to Operate Comanche Peak Nuclear Plant Through 2053 (30-Jul-2024, 4:12 PM PRNewswire) Vistra Publishes 2023 Sustainability Report Highlighting Accelerated Portfolio Transformation & Responsible Decarbonization (31-Jul-2024, 1:45 PM PRNewswire) Vistra Declares Dividend on Common Stock and Series A Preferred Stock (31-Jul-2024, 6:30 PM PRNewswire)						+14.8%
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Median, Minimum, and Maximum Returns - 12 Largest Positive One-Day Changes
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