VST options flow: unusual options activity in Vistra Corp.
Updated 28 September 2026, 09:54 ET
Over the last week the tape recorded 168 unusual options prints in Vistra Corp. (VST), $18.6M of tracked premium, leaning bearish. Bullish premium was $5.7M against $11.5M bearish; $16.5M went into calls and $2.1M into puts, a put call ratio of 0.13. The largest print was $2.0M of VST 21 Jan 2028 $170 calls on 25 September 2026, executed at bid. The last session with prints, 28 September 2026, added 4 prints and $222K of premium. VST closed at $138.46 on 25 September 2026, up 0.4%.
This week's unusual flow
Prints from 21 September 2026 to 28 September 2026, 6 sessions. Delayed tier: every print is shown twenty minutes after it executed, and the page is rebuilt after each session.
Net premium is bullish minus bearish premium. The put call ratio is put premium divided by call premium, weighted by money rather than by contract count. Sweeps is the share of prints executed across several exchanges at once. Read the guide: Reading the Pulse.
Largest prints of the week
| Date | Contract | Type | Size | Open int. | Premium | Execution | Sentiment | Tier |
|---|---|---|---|---|---|---|---|---|
| 25 Sep 2026 | VST 21 Jan 2028 $170 calls | Trade | 900 | 214 | $2.0M | At bid | Bearish | Whale |
| 25 Sep 2026 | VST 17 Dec 2027 $175 calls | Trade | 1,000 | 74 | $1.9M | At bid | Bearish | Whale |
| 23 Sep 2026 | VST 18 Dec 2026 $210 calls | Trade | 16,434 | 17,762 | $1.5M | At ask | Bullish | Whale |
| 23 Sep 2026 | VST 16 Oct 2026 $160 calls | Trade | 9,800 | 14,072 | $686K | At bid | Bearish | High conviction |
| 25 Sep 2026 | VST 20 Nov 2026 $170 calls | Trade | 3,000 | 5,014 | $666K | At bid | Bearish | High conviction |
| 25 Sep 2026 | VST 21 Jan 2028 $105 calls | Sweep | 120 | 178 | $580K | At bid | Bearish | High conviction |
| 25 Sep 2026 | VST 21 Jan 2028 $175 calls | Sweep | 258 | 201 | $547K | At bid | Bearish | Whale |
| 22 Sep 2026 | VST 15 Jan 2027 $130 calls | Trade | 169 | 456 | $367K | At ask | Bullish | Notable |
| 21 Sep 2026 | VST 15 Jan 2027 $140 calls | Sweep | 236 | 873 | $354K | At bid | Bearish | Notable |
| 21 Sep 2026 | VST 15 Jan 2027 $130 calls | Sweep | 150 | 281 | $324K | At bid | Bearish | Notable |
| 23 Sep 2026 | VST 15 Jan 2027 $130 calls | Trade | 149 | 430 | $301K | At bid | Bearish | Notable |
| 23 Sep 2026 | VST 21 Jan 2028 $160 calls | Trade | 93 | 523 | $251K | At midpoint | Neutral |
Size above open interest means the trade opened a position larger than everything that existed in the contract the night before. Above ask and below bid are the most aggressive executions. Read the guide: Size versus open interest.
Where the money is aimed
| Expiry | Prints | Premium | Calls share | Net premium |
|---|---|---|---|---|
| 21 Jan 2028 | 19 | $4.6M | 98% | -$3.0M |
| 15 Jan 2027 | 27 | $2.8M | 94% | -$659K |
| 18 Dec 2026 | 26 | $2.6M | 95% | +$1.7M |
| 17 Dec 2027 | 11 | $2.3M | 100% | -$1.7M |
| 20 Nov 2026 | 19 | $1.9M | 51% | -$694K |
| 17 Jun 2027 | 21 | $1.5M | 81% | -$452K |
The most premium, $4.6M, is aimed at the 21 Jan 2028 expiry; the nearest expiry with unusual prints is 20 Nov 2026.
A print in a contract expiring this week is a view about the next few days, often about a known event; a print months out is a different kind of statement. Read the guide: 0DTE options flow.
The last session, 28 September 2026
| Date | Contract | Type | Size | Open int. | Premium | Execution | Sentiment | Tier |
|---|---|---|---|---|---|---|---|---|
| 28 Sep 2026 | VST 15 Jan 2027 $100 calls | Sweep | 30 | 364 | $122K | At midpoint | Neutral | |
| 28 Sep 2026 | VST 17 Sep 2027 $160 calls | Sweep | 20 | 306 | $39K | At bid | Bearish | Notable |
| 28 Sep 2026 | VST 16 Jun 2028 $70 calls | Trade | 4 | 63 | $32K | At bid | Bearish | |
| 28 Sep 2026 | VST 16 Oct 2026 $150 calls | Sweep | 151 | 13,852 | $29K | At bid | Bearish | Notable |
Every print in VST with its full detail, the live tape, one tap filters and saved screeners: open VST in Options Sentiment Screener.
Price
The live quote and the price chart sit beside the ticker's flow in the app: open VST in Options Sentiment Screener.
Analysts
The most recent analyst targets on file, from 6 firms, have a median of $227, 63.9% above the last close.
Calls bought at a strike above the average target are a bet that the analysts are too cautious; puts far below the price in a name they like are protection or a strong disagreement. Read the guide: Reading one ticker's flow.
About Vistra Corp.
- Exchange
- NYSE
- Sector
- Utilities
- Industry
- Utilities
- Website
- vistracorp.com
Vistra Corp. operates through six segments: Retail, Texas, East, West, Sunset, and Asset Closure. It retails electricity and natural gas to residential, commercial, and industrial customers across 20 states in the United States and the District of Columbia. The company is also involved in the electricity generation, wholesale energy purchases and sales, commodity risk management, fuel production, and fuel logistics management activities.
In the same sector
Flow pages for other Utilities names in the S&P 500:
NEE NextEra Energy Inc.SO Southern Co.CEG Constellation Energy Corp.DUK Duke Energy CORPAEP American Electric Power Co. Inc.D Dominion Energy, Inc.SRE SempraETR Entergy Corp.
Learn
- What unusual options activity means
- Reading one ticker's flow
- Sweeps, blocks and where a trade printed
- Size versus open interest
- Bullish or bearish, how a print's sentiment is inferred
- The conviction score and whale prints
The live tape for VST with every print's execution detail, one tap filters for calls, puts, sweeps and 0DTE, saved screeners and, for Realtime subscribers, push alerts and no delay. The same screen is in the iOS and Android apps.
Open VST in Options Sentiment Screener