Poloniex levied a haircut on Bitcoin (BTC) margin lenders, after a crash in the price of a small-scale altcoin, Clams (CLAM). The problem began when CLAM crashed from around $18.45 down to the $6 range within hours, triggering margin calls for the traders.
Traders, however, could not cover the margin call, and some of their collaterals were not in BTC, but also in CLAM. The losses were covered by BTC lenders, a group of traders offering BTC collaterals for an interest. But not only active lenders were affected - Poloniex took a shave from all lenders. T...