hi im a newbie here and I've heard that big alt coins like ethereal dash are "pump and dump" what does this mean? are they gonna crash soon? should i invest into them? or is it too late? what do you guys think of other alts like monero or ether classic... should we invest into the cheap alt coins?
Pump is the way that coin will get high value and Dump is the way will get low value in the market, The coins will just pump if it has a high buy and sell volume and there's a group that pumping and dumping a coin that call whales or a large investors it is good to trade ether and monero if you have a big investment and read the news before trading.