The price just reflects the mining power on the coin - if the price goes up faster than mining power you have some miners who buy huge power via nicehash for few hours and dump directly their coins as it's very profitable (and repeat that as long the price is higher than the corresponding mining power).
We had ~ 500 GH/s at a price level of $ 3.5-4, then the price went up to nearly $ 20 (so x5) but mining power just went short up to ~ 1.8 TH/s (not even x4) and stabilized at ~ 900 GH/s - 1 TH/s (so ~ x2).
This means that you can get more profit now with your mining power at the current price level of ~ $ 10 than you got for the same mining power at the price of ~ $ 3.5-4.
To avoid miners jumping on the coin just to dump few hours later the mining power would have to get up faster - DBIX is still not on whattomine listed so it's still somehow an insider coin. Of course current miners don't like to have less coin-revenue now but they had already enough time in the past months to gain a good stack of coins.
Hope that DBIX is soon listed at WTM to bring more miners on the coin, raise the difficulty, reduce the coins per MH/s and help the price to go up healthy
