The share price of Transportadora de Gas del Sur S.A. (NYSE:TGS) fell by 20.23% from September 5 to September 12, 2025, making it one of the Energy Stocks that Lost the Most This Week. TGS engages in natural gas transportation and production in Argentina and globally.

TGS stock took a hit after President Javier Milei’s party suffered losses in local elections, raising concerns about economic reforms. Investors worry about Milei’s ability to refinance dollar debts. While TGS shows promise, other AI stocks may offer better returns and lower risks.

Looking for undervalued AI stocks with potential? Check out our report on the best short-term AI stock. For more investment insights, explore the 12 Best Crude Oil Stocks to Buy According to Hedge Funds and The 5 Energy Stocks Billionaires are Quietly Piling Into. No disclosures.

Read more at Yahoo Finance: Among the Argentinian Stocks that Slumped Recently