There is no reason at all, only that the growth was way too fast, it happened with many other coins lately as well, eg. Monaco, Stox and others. Dnt is still like x4 the ICO price. I bought at 15 cents, but made my research and I really like this project, it just need more time, the market is extremly impatient lately moving from coin to coin. I am very confident about DNT future, my only regret is that I didn't wait for lower price to acquire more coins.