That marks the widest gap between the two rates since 2014, according to traders and Reuters data, putting major pressure on the official currency and raising the threat of a sharp potential depreciation, analysts said.
Officially Argentines can only buy a maximum of 200 dollars per month, with a 30% tax on all purchase of foreign currency. The South American country's leaders says they intend to loosen currency controls, but only the once the fragile economy has stabilized.