An approximately $460 million ($BTC) long position was called on trading platform OKEx. However, $420 million worth of the order was not able to be filled. According to Whalepool, the liquidation of was such a big order that OKEx would crash the market if it sold all of it on the market. The insurance fund of the exchange was only around 10 BTC and was unable to cover the order. The rest will now seemingly have to be covered by everyone else under socialized losses.