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Tether is a cryptocurrency based out of the Virgin Islands that is pegged to the dollar 1:1. It has $120 billion in assets mostly safe US Treasury bills, and gold, bitcoin. It made $6.2 billion in profit for its owners more than Black Rock largest American asset manager fund. What does this mean? It offers an outlet for trade in oil for Russia and other countries such as Venezuela. At the same time it is useful to people in countries with high inflation such as Argentina and Turkey  where people use it to protect their assets from inflation erosion. When its use is widespread this also results in diversion of funds away from the Treasury as in Venezuela where an oil minister was toppled, says this WSJ report. And at the same time it gives protection to Venezuelans from extreme inflation.

How it works- Tether Holdings issues virtual coins to a select number of direct customers, mostly trading firms, who wire real world dollars in exchange for Tether.  Tether buys US Treasury bills with these dollars to back Tether's value.

Who runs Tether? Tether's cofounders included a plastic surgeon Giancarlo Devasini. All co-founders sold out to Devasini, who runs it from an enclave in southern coast of France. The company was founded in 2014. Interest was slim in a stable token backed by US Treasury bills. Then in 2020-21 bull run in the stock market traders started using it to buy and sell out of risky bets. It's market capitalization exploded from $4 billion to about $80 billion. 

Tether says it avoids illicit transactions. WSJ report says 2713 wallets or about $1.2 billion were blacklisted, this out of $153 billion provided by Tether to its 2 popular blockchains. Rest of the funds already sent on, says WSJ.