FOMO is starting to kick in. Buying/selling on Polo is starting to skip Satoshis. Price went from 167 straight to 170.
I've been in from day 1 and I can't remember it getting this high since the initial fall from several hundred Satoshi post-exchange listing

Can anyone say whats the highest 24h volume for DGB past 6 month?
4000bitcoin
The graph on Polo can show you that quite easily.
As Telenog says, it hit 4,443.9BTC @ about 3.8 billion DGB on May 6. But remember BTC volume is relative to DGB's price of course.