Because they doing what bitcoin can do and bitcoin has 4133 times the marketcap of Gulden. Which currency is likely to be a better investment?
Bitcoin going to $50 billion or Gulden going to $10 million...
Don't forget this coin isn't on a top 10 volume exchange yet. You can double / triple the price if they deliver good development and end up on Poloniex.
90% of the volume on Poloniex is coming from bots, bittrex is a great exchange that has more realistic volumes.
Both exchange allowed bots on their exchange, most whales controlled it and automatically trades for them. The difference is most whales prefers Poloniex over Bittrex.
This will end up being a good thing for Gulden that more coins with people that care about its future. Whales have enough other coins to play with on poloniex.
but what i have been seeing from Gulden coin was that it always goes down and from time to time someone comes on the forum and aks if it is a good investment and they ask it exactly after the pump has happened and price is already up. and then in a week or so we are back where we were before.