Doge is getting hyped up a bit on their thread (due to Chinese new year being the Dog in 2018), also Taizen tweeted that he's potentially convinced a Dev to update the doge code (not sure what that entails).

Tron... had a competition going on on binance for a mercedes and maserati giveaway based on top trading volume. I expect this will drop now that the competition is over.

Another aspect to consider is more noobs coming into the market, that may be just buying coin cause its cheap. 

Either way Stratis isn't being left behind, it just did a 2x (50k -> 116k sats) now btc is rising again for another shitfork of btc, so the price is ofc moving down again. just hodl that's all, with the final beta releases/ICO platform coming in the new year. it's true value will be reached.