Major crypto tokens are trading at their highest level since May. Bitcoin was changing hands at more than $50,000 on Sept. 4, an increase of 20% from a month ago, according to CoinDesk data. Ethereum has risen around 40% to more than $3,900 during that span.
The hard part is explaining why prices are so high. Crypto assets tend to be highly volatile, with prices that pingpong around on the latest speculation. Here are some developments that may have given the popular digital tokens a recent boost.