Argentine Stocks Rise for Fourth Day as Moody’s Upgrade Fuels Rally

Fourth Day of Gains as Credit Upgrade Lifts Sentiment

Argentine equities extended their winning streak on Wednesday, with the S&P Merval index rising 1.3% to 3,330,000 points and marking a fourth consecutive session of gains. The advance was powered by broad-based buying of Argentine stocks both in Buenos Aires and on Wall Street, where American Depositary Receipts (ADRs) of local companies posted solid gains.

The catalyst was a credit rating upgrade by Moody’s, which lifted Argentina’s sovereign rating, aligning it with earlier upgrades from Fitch and S&P. The move reflected “the reduction in Argentina’s risk of default as a result of macroeconomic stabilization, which has led to a more durable improvement in credit fundamentals,” according to a note from Max Capital. Juan Manuel Franco, chief economist at Grupo SBS, pointed to a compression in the country risk index to around 410 basis points as bonds rallied, and noted that the market was reflecting “the good tone of the news, with gains in dollar bonds and shares, especially in the banking sector.”

Alongside the credit tailwind, a sharp rise in international oil prices gave an extra boost to Argentine energy names. Brent crude for September delivery surged 3.1% to $93.82 a barrel and West Texas Intermediate climbed 2.8% to $86.68, their highest in nearly six weeks. The rally was driven by escalating US-Iran hostilities in the Strait of Hormuz and fresh threats by Yemen’s Houthi militia to block Saudi oil shipments through the Bab el-Mandeb strait. “The energy market is now facing concern over both straits,” said Tim Waterer of KCM Trade, as reports emerged of three Saudi oil tankers changing course in the Red Sea. The ADRs of oil-related companies YPF, Vista Energy and Tenaris advanced 1.1%, 2% and 2.3% respectively.

Among the day’s top movers, agricultural producer Adecoagro soared 5.4%, while Banco Macro and steelmaker Ternium each rose 2.4%. Rava Bursátil also reminded investors that YPF will execute a 10-for-1 stock split on August 4, 2026, aimed at improving liquidity and making the shares more accessible to retail investors.

Moody’s Upgrade and Middle East Tensions Reshape the Playbook

Credit Rating Realignment and Debt Market Access

Moody’s upgrade reduces Argentina’s perceived default risk and places the country in line with the assessments already issued by Fitch and S&P. The agency highlighted “the continuity of fiscal surpluses, the deceleration of inflation and the progress of the economic liberalization process” as factors that have strengthened policy credibility and reduced macroeconomic volatility. The immediate market consequence has been a further compression of country risk from elevated levels to the area of 410 basis points—a threshold that starts to make a voluntary international bond issuance conceivable.

Franco of Grupo SBS noted that “economic normalization will be fundamental to continue the compression and reduce the cost of dollar debt, in order to be able to think about an international issuance that helps decompress the financial program, adding a source such as the voluntary international market.” This signal is crucial: if global conditions permit, the government could re-enter international capital markets for the first time in years, locking in lower rates and extending maturities. However, execution hinges on the durability of the fiscal anchor and on inflation continuing to trend downward, both of which remain vulnerable to domestic politics and external shocks.

Oil Disruption Fears Propel Energy Stocks

The day’s oil spike added a layer of geopolitical risk that directly benefits Argentina’s energy exporters. The US military conducted its eleventh consecutive night of strikes on Iran, while Kuwait intercepted Iranian drones, and the Houthis announced a naval blockade of Saudi Arabia and threatened tankers in the Bab el-Mandeb strait—a key corridor for Saudi crude heading to Asia. Frank Walbaum of Naga.com noted that tankers were already turning back in the Red Sea, creating a physical supply pressure that pushed crude higher.

For Argentine companies, higher oil prices translate into improved revenues for producers like YPF, Vista Energy and steel pipe supplier Tenaris. While the conflict adds uncertainty to global supply chains, it also underscores the value of Argentina’s Vaca Muerta shale as a source of non-OPEC crude. The combination of a stronger credit profile and an oil price tailwind leaves Argentine energy stocks unusually well positioned, though any reversal in the geopolitical situation could quickly unwind those gains.

What Investors Should Watch Next

• Monitor Argentina’s country risk spread (currently hovering around 410 basis points). A sustained drop below 400 would signal growing confidence and could prompt the government to test international bond markets, potentially triggering a new leg higher for local fixed-income assets.
• Keep an eye on oil market logistics: a prolonged disruption of both the Strait of Hormuz and the Bab el-Mandeb strait could lift Brent above $100 a barrel. For holders of YPF, Vista Energy and Tenaris, this would boost near-term earnings but also raise fuel cost pressures within Argentina—watch for any domestic regulatory response.
• Mark August 4, 2026 on your calendar: YPF’s 10-for-1 stock split will increase the number of shares outstanding and lower the per-share price in the local market. The move is designed to improve liquidity and may attract retail investors; check your brokerage account for the adjusted holding and consider the effect on your average price.