TGS · Gas Transporter Of The South Inc

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$29.56 -0.48 (-1.60%) At close · Aug 5

Market Cap

$4.68B

150.55M

Options Chain

15-min delayed Underlying $29.56 · at close Aug 5, 2026 Options Calculator

Positioning

Aug 21, 2026 · 15 days to expiry · 16 contracts

Put / call OI

0.90

Balanced positioning

Open interest

906

contracts outstanding

Volume

109

traded today

Max pain

$30.00

$0.44 above spot

ATM implied vol

66.4%

market's expected move

Open interest by strike

Calls Puts

17.5

22.5

Chain

Click any strike for greeks, breakeven and the calculator

Expiry

Aug 21 15d Sep 18 43d Oct 16 71d Jan 15 162d

Calls						Puts
OI	Vol	IV	Δ	Last	Strike	Last	Δ	IV	Vol	OI
0	—	—	—	—		—	—	—	—	0
Call · $17.5 In the money Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $17.5 Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	—	—	—	—		—	—	—	—	0
Call · $20 In the money Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $20 Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	—	—	—	—		—	—	—	—	0
Call · $22.5 In the money Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $22.5 Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	—	—	—	—		$0.37	-0.215	131.4%	100	226
Call · $25 In the money Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $25 Last $0.37 Breakeven $24.63 Implied vol 131.4% Delta -0.215 ≈21% ITM Gamma 0.036 Theta -0.076 Vega 0.019 Open interest 226 Model this put
Underlying $29.56
68	2	68.1%	0.513	$1.00		$1.00	-0.49	64.7%	2	204
Call · $30 Last $1.00 Breakeven $31.00 Implied vol 68.1% Delta 0.513 ≈51% ITM Gamma 0.097 Theta -0.056 Vega 0.024 Open interest 68 Model this call Put · $30 In the money Last $1.00 Breakeven $29.00 Implied vol 64.7% Delta -0.49 ≈49% ITM Gamma 0.102 Theta -0.05 Vega 0.024 Open interest 204 Model this put
405	2	54.5%	0.084	$0.15		—	-0.848	71.9%	—	0
Call · $35 Last $0.15 Breakeven $35.15 Implied vol 54.5% Delta 0.084 ≈8% ITM Gamma 0.046 Theta -0.017 Vega 0.012 Open interest 405 Model this call Put · $35 In the money Last — Breakeven — Implied vol 71.9% Delta -0.848 ≈85% ITM Gamma 0.055 Theta -0.032 Vega 0.017 Open interest 0 Model this put
2	2	—	—	$0.10		—	-0.889	107.7%	—	0
Call · $40 Last $0.10 Breakeven $40.10 Implied vol — Delta — Gamma — Theta — Vega — Open interest 2 Model this call Put · $40 In the money Last — Breakeven — Implied vol 107.7% Delta -0.889 ≈89% ITM Gamma 0.029 Theta -0.038 Vega 0.012 Open interest 0 Model this put
1	1	—	—	$0.35		—	—	—	—	0
Call · $45 Last $0.35 Breakeven $45.35 Implied vol — Delta — Gamma — Theta — Vega — Open interest 1 Model this call Put · $45 In the money Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put

About this data

Greeks, implied volatility, open interest and the last price come from the latest daily snapshot and are 15-minute delayed. Bid and ask are not included on this plan.

In-the-money strikes are tinted, deepening toward the money, and the bar beside each open-interest figure scales to the heaviest strike shown. Max pain is the listed strike where the most open interest would expire worthless — a positioning reference, not a forecast.

Key facts CIK 931427 CUSIP 893870204 13F (30d) 30 filings 30 filers Visit website Investor relations