Yes. DMD is extremely cheap right now, considering the limited supply it has and the features it provides such as masternodes, among others. Since most altcoins have been in a bloodbath in price, it's the perfect opportunity to grab a stake of DMD and start holding it to achieve great results in the long term. Personally, I believe that DMD is quite undervalued right now, as it is much scarcer than Bitcoin, as well as it has an outstanding development team and community dedication. With masternodes and PoS, you can earn high rewards with this altcoin.

Another altcoin which is worth investing into right now is Bean Cash. This coin is very effective at staking, allowing you to obtain quick results by staking a few coins. And best of all, the more you stake, the better as rewards will accumulate over the long term. There's a sprouting calculator available for Bean Cash for you to check out how much money you'll earn every month. Among the many PoS coins in existence, these two (Bean Cash and DMD) have worked out fine for me in helping me achieve good ROI in the shortest time possible.

Lastly, there's NEO which allows you to earn "GAS" without the need to open the wallet at all time. This is like passive income as you'll be virtually "staking" your NEO to achieve huge rewards over the long term. Since prices have been on a downfall, NEO is quite a bargain these days.