Transportadora de Gas del Sur SA TGS (TGS) Options Chain
NYSE: TGSUtilitiesNatural Gas DistributionUSD
At close: Oct 8, 4:00 PM ET · Delayed 15 min
Expiration date
- Expiration
- Oct 16, 2026
- Days to expiration
- 7
- Share price
- $26.39
- Put/call ratio (OI)
- 4.03
- Put/call ratio (volume)
- 1.02
- Expected move
- ±$0.4568
- Open interest (C / P)
- 800 / 3.23K
TGS options summary
The TGS options chain for the October 16, 2026 expiration lists 8 call and 6 put contracts, with 7 days until expiration. Open interest stands at 800 calls and 3,225 puts, a put/call ratio of 4.03, which is more bearish, with puts outnumbering calls. At-the-money implied volatility near the $25.00 strike is 12.5%, which implies the market expects a move of about ±$0.4568 (1.7%) in Transportadora de Gas del Sur SA TGS stock by expiration.
The most open interest sits at the $30.00 call (593 contracts) and the $25.00 put (3.05K contracts).
Summary generated from market data by MetaCap's automated system. Methodology
TGS options chain · October 16, 2026
| Calls | Puts | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Last | Bid | Ask | Strike | Bid | Ask | Last | |||||
| 13.37 | 0.00 | 0.00 | 15.00 | 0.00 | 2.60 | 0.24 | |||||
| 11.50 | 0.00 | 0.00 | 17.50 | — | — | — | |||||
| 11.90 | 0.00 | 0.00 | 20.00 | — | — | — | |||||
| 7.90 | 8.70 | 11.50 | 22.50 | 0.00 | 0.00 | 0.13 | |||||
| 3.20 | 0.00 | 0.00 | 25.00 | 0.00 | 0.00 | 0.37 | |||||
| 0.15 | 0.00 | 0.00 | 30.00 | 0.00 | 0.00 | 2.53 | |||||
| 2.22 | 0.05 | 3.50 | 35.00 | 5.40 | 7.80 | 6.06 | |||||
| 1.31 | 0.00 | 3.40 | 40.00 | 10.30 | 13.60 | 10.50 | |||||
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 October 16, 2026 expiration, the TGS put/call ratio based on open interest is 4.03 (3,225 puts vs 800 calls), and 1.02 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 October 16, 2026 is about 12.5%, 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.