One time, my GRS went up by 400% but I was actually asleep so I didnt act on it. But I would have sold it if I had the chance because it dumped back down and I could only sell it for 100% increase. It is of course good to have 100% gain but 400% is much better so I wish I sold at that price. Sometimes you see a good project having strong recovery like ICX and EOS. However, they are pretty rare.