Is the Uphold Exchange platform still trading XRP?

Yes, the Uphold Exchange platform is still trading XRP. They claim to be among the first digital wallets to support full integration with Ripple, so you should check them out if you're looking to buy or sell XRP.

Now, Uphold Members can deposit and withdraw XRP to external XRP Ledger addresses. Uphold is one of the first digital money companies to make XRP accessible to the masses. It is currently among the first to make XRP transactions, deposits, and withdrawals easier than ever.