On February 22, the price of Ether on Kraken dropped to $700, a big drop from the previous day's low on other major exchanges. The sell-off was investigated by Kraken, which discovered that its trading engine had "processed orders correctly." The exchange has been promising to refund customers during the week in an apparent volte-face. According to a study published by New Money Review, refunds vary from 5% to 50% of the amount lost.