The world's biggest stablecoin, tether, saw more than $10 billion in redemptions in May, fueling fears of a 2008-style "bank run." Tether, the world's largest stablecoin, has slashed back its commercial paper holdings to zero, replacing them with U.S. Treasury bills instead, according to a blog post. There are now about 68.4 billion tether tokens in circulation, according to data from CoinMarketCap, up from 2 billion three years ago. But well before UST's dramatic implosion, Tether — the company behind the stablecoin of the same name — was facing serious regulatory backlash over its reserves. Critics have also raised fears that tether tokens were used to manipulate bitcoin prices, a claim Tether has repeatedly denied.

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