Steem will soon be available on BitShares in this market.

https://bitshares.openledger.info/#/market/OPEN.BTC_OPEN.STEEM

This exchange pair is brought to you by Open Ledger  (aka. CCEDK). 

If you want to trade for FIAT you can also trade this pair:

https://bitshares.openledger.info/#/market/OPEN.USD_OPEN.STEEM

You can place bids in these markets while we wait for Open Ledger to enable STEEM deposits / withdraws.