So how do you invest in Barter DEX? Do they have their own coins (ICO) or do we have to buy Komodo?
Komodo will certainly benefit from it because if you want ~5 seconds swaps you need a Kmd "security deposit" of equal value. The more people want to trade and the more Kmd will be locked this way.
The trading fee is only 1/777 from seller side, the amount goes to the DEX asset holders. This asset was traded on Nxt Asset Exchange as
InstantDEXbut it's now being
migrated to its own Komodo assetchain called DEX. You can buy it on Nxt AE and swap until march or buy DEX directly on BarterDex.
Here's a flowchart of DEX revenues (and other Komodo Assets):
https://forum.supernet.org/t/supernet-revenue-flow-chart/265