Opening (Margin): TLT January 21st 2 x 160/149 Backratio Spread... for a 20.34 debit.
Comments: Buying 2 x the 82 delta strike and selling the at-the-money 49 delta strike for a setup with a net delta of -115, so this is going to move a lot like short stock. Going with the January expiry to give it more time to work out if it needs it, but will look to take profit at 110% of what I put the trade on for.