Currently SBD's are trading at a premium. This means you can:
- Send your SBD's from your steemit account to Polo
- Sell them on Polo for BTC. Because the value of SBD's is higher than than $1 you'll get more BTC out of this than it was supposed to, effectively putting you at a profit.
- Buy STEEM with BTC
- Send STEEM to your Steemit account
- Sell STEEM for SBD
- Repeat.
Fast confirmation times make this an excellent opportunity given your deposits and withdrawals are done relatively fast comparing with other cryptos.
This will ensure the peg, reducing the spread as well as profit.