Transportadora de Gas del Sur SA TGS (TGS) Options Chain
NYSE: TGSUtilitiesNatural Gas DistributionUSD
At close: Oct 9, 4:00 PM ET · Delayed 15 min
Expiration date
- Expiration
- Nov 20, 2026
- Days to expiration
- 40
- Share price
- $25.71
- Put/call ratio (OI)
- 8.02
- Put/call ratio (volume)
- 17.00
- Expected move
- ±$4.36
- Open interest (C / P)
- 60 / 481
TGS options summary
The TGS options chain for the November 20, 2026 expiration lists 1 call and 2 put contracts, with 40 days until expiration. Open interest stands at 60 calls and 481 puts, a put/call ratio of 8.02, which is more bearish, with puts outnumbering calls. At-the-money implied volatility near the $25.00 strike is 51.2%, which implies the market expects a move of about ±$4.36 (16.9%) in Transportadora de Gas del Sur SA TGS stock by expiration.
The most open interest sits at the $30.00 call (60 contracts) and the $22.50 put (251 contracts).
Summary generated from market data by MetaCap's automated system. Methodology
TGS options chain · November 20, 2026
| Calls | Puts | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Last | Bid | Ask | Strike | Bid | Ask | Last | |||||
| — | — | — | 22.50 | 0.00 | 0.75 | 0.50 | |||||
| — | — | — | 25.00 | 0.70 | 2.10 | 0.90 | |||||
| 0.45 | 0.00 | 0.75 | 30.00 | — | — | — | |||||
In-the-money callsIn-the-money puts. IV = implied volatility, OI = open interest (contracts). Each contract covers 100 shares. Quotes delayed at least 15 minutes.
Frequently asked questions
What is the TGS put/call ratio?
For the November 20, 2026 expiration, the TGS put/call ratio based on open interest is 8.02 (481 puts vs 60 calls), and 17.00 based on today's volume. A ratio above 1 means more puts than calls.
What is TGS's implied volatility?
At-the-money implied volatility for TGS options expiring November 20, 2026 is about 51.2%, an annualized estimate of how much the market expects Transportadora de Gas del Sur SA TGS stock to move.
How many TGS option expiration dates are there?
TGS has 5 listed expiration dates, from Oct 16, 2026 to Dec 17, 2027.
What does "in the money" mean?
A call is in the money when the strike price is below the current share price; a put is in the money when the strike is above it. In-the-money contracts have intrinsic value and are shaded in the table.