It is still on two conventional centralised exchanges, FreiExchange and FreiXlite. A satoshi per DVC on both but the former is in bitcoins the latter in litecoins so a lot cheaper on FreiXlite.

That is actually an arbitrage opportunity actually, probably, most of the time, as I think usually that it - especially the in litecoins version - is usually a whole lot cheaper than on the Stellar platform ( https://makemoney.knotwork.com/stellar/dvc/ , see explorer page https://stellar.expert/explorer/public/asset/DVC-GBHAQ252S4Z4AQOM4BWIRC3UHAOJIKCZQBUJGD336YH2O7W2NKRXMHA5 )

Is there still some trading volume? And if I want to trade it, how can I get it off my wallet when the client does not sync? Or does it?