Gridcoin trading on poloniex officially ended on the 25th September! You have until the 25th October to withdraw all you remaining GRC on that exchange before it goes bye bye forever! Don't dilly dally and get it done!
On a said note, The price of GRC should now start to slowly recovers now that the panic sales and quick trade closures and all done with.
And as always the community are always working to get on more exchanges and Devs are working diligently to bring us ever closer to meeting Exchange requirements and improving our beloved coin!
So keep calm and keep crunching!