Just to elaborate on the dump that we are witnessing right now when Swell just started. Well, if you were a whale attending Swell yourself, you would sell as well. Why ? Because you can grab the news first hand, and be the first to act upon it and win anyways. Let's say you sell huge amounts (along with other whales), causing the price to dip. In the conference, if you get some good news, you and the other whales will buy instantly (at a lower price because the price dipped anyways). If not, then the bad news (or no news) will spread around eventually and the price will keep dipping but guess what you already sold at a higher price anyways!