Ueno's fall locked out 3M Paraguayans overnight. Stablecoins filled the gap

Paraguay's Central Bank seized control of Ueno Bank on Nov. 3, pushing the digital lender into resolution after its solvency ratio dropped below half the legal minimum. Regulators probing the books found questionable lending practices plus deficiencies in credit documentation and accounting. Roughly 3 million customers — about 60% of the country's adults — suddenly couldn't touch their own accounts.

The fallout went straight to the streets. Thousands protested, and President Santiago Peña tried to resign before being impeached and arrested on charges of breach of trust and using his office for personal gain.

Crypto traders reacted within hours. Sellers on Paraguay's peer-to-peer market demanded USDt premiums of as much as 13%, while the guaraní slid by 12.3% in a single week. Tether chief executive Paolo Ardoino weighed in: “USDt is a lifeline for hundreds millions of people in the world.”

David Eisenmann, founder and CEO of Paraguayan exchange X4T, says the date of the intervention made the cash crunch brutal. “The intervention came in the first days of the month, exactly when salaries, rent and supplier invoices are due,” he says, noting many business owners “couldn’t make payroll.” For them, he says, USDt was “suddenly the most liquid money” they had. X4T processed more than $10 million in local on-ramp volume over the 30 days to early November — though Eisenmann says some of that came before Ueno fell, since “the dollar began recovering against the guaraní in October, and the Ueno news sped up a move that was already underway.”

Relief came slowly. By Nov. 9, the Central Bank said 93.1% of customers with Ueno deposits had been repaid, but Eisenmann says X4T's inquiries for dollar-denominated stablecoins “has not changed significantly” from the week of the collapse. Rhys Hicks, associate analyst at GlobalData, sees the failure as a governance story: it showed “how much can go wrong when governance does not keep pace with growth.” He isn't buying a stampede into crypto, though — other banks “picked up the slack,” and people “seem to have been angrier” with the government than with the banks. Still, he adds, “Some consumers will look for different ways to keep their money safe, but I do not see an overwhelming shift to stablecoins yet.”

The playbook isn't new, and neither is the risk. Argentina's 2001 crisis brought the “corralito,” withdrawal limits that ended with dollar deposits converted into pesos and savings cut by roughly 30% overnight. And stablecoins aren't immune to bank trouble either: when Silicon Valley Bank failed in March 2023, Circle disclosed $3.3 billion of USDC reserves — about 8% — sat with the lender, and USDC briefly depegged to 86 cents. A BIS paper warns heavy dollar-token use could strain monetary sovereignty in emerging markets. Hicks says regulators still need to fix “transparency” and “consumer protection,” since stablecoin holders get no deposit guarantees and no central bank to make them whole. Eisenmann expects the episode to push people toward “diversification” — spreading money across banks, cash and digital assets — and says trust will return only as fast as “authorities handle the resolution.”