Transportadora de Gas del Sur S.A (TGS) Fair Value & Analysis
Energy · US · Market cap $4.7B
Transportadora de Gas del Sur S.A
TGS · US
Fair value as of: Aug 13, 2026
From 24 valuation models · updated today
Share price −11.0% over the past month.
A solid business, screening 14% undervalued on our models.
What matters now
- A fairly wide model range ($18.75 to $42.17) leaves room in how you read the outcome.
- Our model range runs from $18.75 (bear) to $42.17 (bull), base $31.92. The closer the price sits to the lower half, the larger the margin of safety.
- Quality 57/100 (solid quality) with high evidence: the data supports the verdict.
Price vs Fair Value (5 years)
White line = price, green steps = our fair value per fiscal year, dashed = 300-day average. As of Aug 13, 2026.
How to read this chart
60‑month range $3.91 – $35.32 · fair‑value band $18.75 – $42.17 · the $27.89 price screens below the $31.92 fair value. Green steps = our fair value per fiscal year (point-in-time, no hindsight). Dashed = 300-day average. As of Aug 13, 2026.
Analysis
Transportadora de Gas del Sur S.A (TGS) currently trades at $27.89, while our model-based Fair Value estimate is $31.92, implying the stock looks roughly 14.5% undervalued today. The Quality Score stands at 57/100 (solid quality), in the Energy sector. Bull case: trading below our estimate, it may offer upside if the fundamentals hold. Bear case: a low price can be a value trap when quality is weak or the data is thin (evidence: high), always confirm before acting.
Over the trailing twelve months, Transportadora de Gas del Sur S.A generated revenue of $1.8T at a net margin of 24.7%. Revenue grew 13.2% year over year. It earns a return on equity of 14.3%. Net debt stands at $869B. Fundamentals as of Aug 13, 2026
Our scenario range runs from $18.75 (bear case) to $42.17 (bull case); at $27.89, the current price sits within that range. Bear and bull are the same models run on conservative and optimistic assumptions (margins, growth, valuation multiples), so a plausible valuation range, not a price target. The share trades about 23% below its 52-week high and 41% above its 52-week low, currently below its 200-day average. For context, the median of 10 Energy peers we cover trades at -27% fair-value upside, at 14%, TGS screens cheaper than that median.
Fair Value models
Each model estimates fair value its own way; the Fair Value above is the evidence-weighted blend. Evidence (0–100) measures how completely this model’s inputs are available: well-fed models carry more weight in the blend. The spread across models is intentional, each one stresses a different value driver; dividend models, for instance, come out structurally low when payout is small.
All 24 models by family
Widest divergence: Growth Earnings ($78.78) versus Asset-Based ($8.20). Highest evidence: Growth DCF (80).
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Key figures & financial health
More key figures
Figures from reported company fundamentals · as of Aug 13, 2026. TTM = trailing twelve months.
Quality Score breakdown
Of which business quality 56 · Market factors (momentum, volatility) 42
Non-valuation factor families (profitability, growth, cashflow, financial strength, momentum …), each academically grounded. Valuation itself sits in the Fair Value and is deliberately excluded here to avoid double-counting.
About the company
Transportadora de Gas del Sur S.A. engages in transportation of natural gas, and production and commercialization of natural gas liquids in Argentina and internationally. The company operates through four segments: Natural Gas Transportation Services; Liquids Production and Commercialization; Midstream; and Telecommunications.
Full company description
Transportadora de Gas del Sur S.A. engages in transportation of natural gas, and production and commercialization of natural gas liquids in Argentina and internationally. The company operates through four segments: Natural Gas Transportation Services; Liquids Production and Commercialization; Midstream; and Telecommunications. The Natural Gas Transportation segment transports natural gas through pipeline system to distribution companies, power plants, and industrial customers. It provides operation and maintenance services for the natural gas transportation facilities. The Liquids Production and Commercialization segment produces and commercializes natural gas liquids, such as ethane, liquid petroleum gas, natural gasoline, propane, and butane. This segment offers certain related services comprising reception, storage, and dispatch of the liquids. The Midstream segment provides natural gas conditioning services; treatment, removal of impurities and natural gas compression, including the collection and transport of natural gas; and inspection and maintenance of pipelines and compressor plants services. In addition, this segment offers steam generation for electricity production and management services for expansion works and steam generation for the production of electricity. The Telecommunications segment offers data transmission services through a network of digital terrestrial radio relay. It serves residential, commercial, industrial, and electric power generation end users. The company was incorporated in 1992 and is headquartered in Buenos Aires, Argentina. Transportadora de Gas del Sur S.A. operates as a subsidiary of Compañía de Inversiones de Energía S.A.
Company description, as reported by the company or data provider.
Revenue & earnings trend
FY2021 – FY2025 · reported fiscal years
Transportadora de Gas del Sur S.A reported revenue of $2.0T in FY2025 versus $527B in FY2021, a compound +39.4%/yr. Reported net income was $490B in FY2025, compounding +40.2%/yr from FY2021.
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Recent news
External third-party headlines (Yahoo Finance, Reuters and others), not an editorial selection.
- TGS Vesting Under the 2023 Long-term Incentive Plan
- Transportadora De Gas Sa Ord B Q2 Earnings Call Highlights
- Transportadora de Gas del Sur SA (TGS) (Q2 2026) Earnings Call Highlights: Net Income Surges to ...
- TGS Awarded OBN Contract
Peer Group
Oil & Gas Integrated · 54 stocks
How this stock ranks against its industry: the green marker is this stock, the band is the typical 25–75% peer range, and the tick is the median.
Valuation Multiples vs Oil & Gas Integrated median · lower = cheaper
Snowflake
Five quick dimensions, each 0 to 100: VALUE (fair-value potential), FUTURE (revenue growth), PAST (return on equity), HEALTH (low debt), DIVIDEND (yield). Green = this stock, grey = typical sector peer.
Values & ESG
Does this company touch areas you may want to avoid? The classification is inferred from sector and industry.
ESG scores are not available for this stock yet. Values and ESG data are contextual and can differ between providers.
Similar stocks
10 more Oil & Gas Integrated stocks, each showing price versus our Fair Value estimate (as of Aug 13, 2026).
| Stock | Price | Fair Value | vs Fair Value |
|---|---|---|---|
| Exxon Mobil Corporation XOM | $159.80 | $88.98 | -44% |
| Chevron Corporation CHEV | C$23.84 | C$8.30 | -65% |
| PetroChina Company 601857 | ¥10.66 | ¥15.47 | +45% |
| Shell plc SHELL | €39.04 | €46.09 | +18% |
| TotalEnergies SE TTE | C$14.29 | C$8.20 | -43% |
| Petróleo Brasileiro S.A PBRN | 314.50 MXN | 1,240 MXN | +294% |
| BP p.l.c., an integrated energy company, BP | $42.93 | $8.99 | -79% |
| China Petroleum & Chemical Corporation 600028 | ¥5.05 | ¥3.67 | -27% |
| Equinor ASA EQNR | $40.93 | $34.53 | -16% |
| Suncor Energy Inc SU | C$88.25 | C$59.11 | -33% |
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Frequently asked questions
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How we calculate Fair Value
Each company is valued through a stack of independent intrinsic-value models (DCF variants, residual-income, multiples and more), blended into one family-balanced consensus and weighted by how much trustworthy data backs it. A separate quality layer scores the fundamentals. Every input is real reported data, nothing guessed.
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