The US Treasury bought yen for the first time in 30 years, spending up to $10 billion. Here's what it means for crypto and global risk assets.

The US Treasury warned banks of potential yen intervention for the first time in over 20 years. Here's why crypto traders need to watch the carry

Banks told to prepare for potential operation to buy Japanese currency

The United States Treasury intervened in yen exchange rates on Friday. This action supported the Japanese currency through outright purchases by the Treasury. The Federal…