yes staker is now listed to ecex exchange. we need volume to make STR expensive
I received an ÀD from ecex
https://ibb.co/kDrUeK 
Although this exchange is not yet listed on coinmarketcap, it offers a very user friedly interface and faster trade executions.
For the volume we cannot expect a high volume at this time due to the 70% hold requirements, Majority of people are holdings their coins to qualify for the weekly airdrop.