Thanks for your answers.
Where can I find the appropriate hedge ratios for later contracts for example the June 10yr vs June 2yr contract (or where I can find the CTD for these contracts? I can calculate the ratios)?
I want to get into a 2/10 flattener trade but the March contracts are...
I tried a few times to register for a user name on the forum on Wilmott.com (the quantitative trading discussion website). It requires admin review, and I never received approval from them.
Why is it so hard??
From the CME website (following link) to trade 2/10 we need 3 2yr :1 10 yr (price ratio).
http://www.cmegroup.com/trading/interest-rates/files/March-2011-ICS-Ratios.pdf
Why is it? Isn't the current duration for 10 yr about 8 or 9? Shouldn't the ratio be 4:1 or 5:1?