Ryan Melvey's Bond Duration as Leverage Article

Discussion of the Bond portion of the Permanent Portfolio

Moderator: Global Moderator

Post Reply
barrett
Executive Member
Executive Member
Posts: 2028
Joined: Sat Jan 04, 2014 2:54 pm

Ryan Melvey's Bond Duration as Leverage Article

Post by barrett »

I was just reading Ryan Melvey's article on Long Bonds here:

http://www.stableinvesting.com/

He makes the case that one can hold a lower percentage of LTTs (and still not alter the power of bonds to lift the entire portfolio) if they are of longer duration. I guess that is pretty obvious to most PPers, but I am curious if anyone on here lowers the percentage of LTTs they hold based on whether they hold them individually, as EDV, as TLT, or otherwise.

All my bonds are individual issues, mostly maturing 11/15/43, so just under 29 years from now. I confess that, when it comes to Long Bonds, I don't really get the difference between maturity and duration which I think Budd explained somewhere.

Right now I am almost exactly at 4X25. Can I take some profits off the table by selling a few bonds and not mess with the underlying ideas of the PP?

Thanks for any input.
User avatar
Pointedstick
Executive Member
Executive Member
Posts: 8883
Joined: Tue Apr 17, 2012 9:21 pm
Contact:

Re: Ryan Melvey's Bond Duration as Leverage Article

Post by Pointedstick »

I used to use EDV instead of TLT on the justification that bonds have the lowest historical volatility of three three volatile assets, so I was trying to match them up better. In practice, I almost immediately got spooked by its much higher volatility and replaced it with TLT and real bonds. Every once in a while I toy with going back to the idea, especially in conjunction with GTU as the gold fund, but only after I figure out an adequate higher-volatility stock fund that still tracks the performance of the broad market.
Human behavior is economic behavior. The particulars may vary, but competition for limited resources remains a constant.
- CEO Nwabudike Morgan
barrett
Executive Member
Executive Member
Posts: 2028
Joined: Sat Jan 04, 2014 2:54 pm

Re: Ryan Melvey's Bond Duration as Leverage Article

Post by barrett »

Pointedstick wrote: I used to use EDV instead of TLT on the justification that bonds have the lowest historical volatility of three three volatile assets, so I was trying to match them up better. In practice, I almost immediately got spooked by its much higher volatility and replaced it with TLT and real bonds. Every once in a while I toy with going back to the idea, especially in conjunction with GTU as the gold fund, but only after I figure out an adequate higher-volatility stock fund that still tracks the performance of the broad market.
And long bonds are even more volatile when rates are this low. Really appreciate your input on this, PS!

The answer to my question seems to be that I should just let the portfolio work and go do something productive... either that or go back to the China/US manufacturing topic. :))
User avatar
dualstow
Executive Member
Executive Member
Posts: 15238
Joined: Wed Oct 27, 2010 10:18 am
Location: searching for the lost Xanadu
Contact:

Re: Ryan Melvey's Bond Duration as Leverage Article

Post by dualstow »

barrett wrote: I confess that, when it comes to Long Bonds, I don't really get the difference between maturity and duration which I think Budd explained somewhere.
I think I remember rickb or kevinw explaining it, too. In any case, duration is the important one when you're looking at interest rate sensitivity, if I recall correctly.
RIP Rick Derringer
User avatar
moda0306
Executive Member
Executive Member
Posts: 7680
Joined: Mon Oct 25, 2010 9:05 pm
Location: Minnesota

Re: Ryan Melvey's Bond Duration as Leverage Article

Post by moda0306 »

What ever happened to that guy... what a kid!  One of my favorite contributors to this forum.
"Men did not make the earth. It is the value of the improvements only, and not the earth itself, that is individual property. Every proprietor owes to the community a ground rent for the land which he holds."

- Thomas Paine
hoost
Executive Member
Executive Member
Posts: 422
Joined: Thu Mar 01, 2012 11:24 pm
Location: Texas

Re: Ryan Melvey's Bond Duration as Leverage Article

Post by hoost »

barrett wrote: I was just reading Ryan Melvey's article on Long Bonds here:

http://www.stableinvesting.com/

He makes the case that one can hold a lower percentage of LTTs (and still not alter the power of bonds to lift the entire portfolio) if they are of longer duration. I guess that is pretty obvious to most PPers, but I am curious if anyone on here lowers the percentage of LTTs they hold based on whether they hold them individually, as EDV, as TLT, or otherwise.

All my bonds are individual issues, mostly maturing 11/15/43, so just under 29 years from now. I confess that, when it comes to Long Bonds, I don't really get the difference between maturity and duration which I think Budd explained somewhere.

Right now I am almost exactly at 4X25. Can I take some profits off the table by selling a few bonds and not mess with the underlying ideas of the PP?

Thanks for any input.
I don't necessarily lower the %age of my bond holdings by extending duration, but I do hold some EDV to balance out Intermediate bonds that are the only option in my wife's 401k.  I would think if you needed to hold some extra cash, you could up the duration (if available) of a portion of your long bonds to maintain your target duration.  I usually just to try match the duration of TLT by computing a weighted average.
User avatar
sophie
Executive Member
Executive Member
Posts: 1968
Joined: Mon Apr 23, 2012 7:15 pm

Re: Ryan Melvey's Bond Duration as Leverage Article

Post by sophie »

I was thinking along the same lines as PS for a while, but eventually I just used EDV as a counterbalance to the VUSTX I was holding in a retirement account.  Now that the retirement account is no longer part of the PP, I'm just sticking to individual bonds and TLT, with TLT serving as an accumulator/gateway.  Far simpler.
"Democracy is two wolves and a lamb voting on what to have for lunch." -- Benjamin Franklin
barrett
Executive Member
Executive Member
Posts: 2028
Joined: Sat Jan 04, 2014 2:54 pm

Re: Ryan Melvey's Bond Duration as Leverage Article

Post by barrett »

moda0306 wrote: What ever happened to that guy... what a kid!  One of my favorite contributors to this forum.
Moda, He still posts articles from time to time on his site Stable Investing.

Here is the link:

http://www.stableinvesting.com/p/recent ... mance.html

Maybe he can be lured back onto the forum if we set up a bring back melveyr campaign!
rickb
Executive Member
Executive Member
Posts: 762
Joined: Mon Apr 26, 2010 12:12 am

Re: Ryan Melvey's Bond Duration as Leverage Article

Post by rickb »

dualstow wrote:
barrett wrote: I confess that, when it comes to Long Bonds, I don't really get the difference between maturity and duration which I think Budd explained somewhere.
I think I remember rickb or kevinw explaining it, too. In any case, duration is the important one when you're looking at interest rate sensitivity, if I recall correctly.
Maturity is simply how long until the bond matures.  Duration is a function of maturity and the bond's coupon interest rate and the bond's current price (it measures how long until the bond's current price plus the coupon payments equal the bond's face value).  How much a bond's value changes with current interest rates is a function of duration, so two bonds with the same maturity but different coupon rates will have different durations and a shorter bond with a lower interest rate might have a longer duration than a longer bond with a higher interest rate.

See http://www.investopedia.com/university/ ... dbond5.asp
barrett
Executive Member
Executive Member
Posts: 2028
Joined: Sat Jan 04, 2014 2:54 pm

Re: Ryan Melvey's Bond Duration as Leverage Article

Post by barrett »

Thanks, rickb! That is my homework tonight. Planning to light up the next party I am invited to with a talk on bond duration versus maturity. :) Seriously, this is much appreciated.
User avatar
MachineGhost
Executive Member
Executive Member
Posts: 10054
Joined: Sat Nov 12, 2011 9:31 am

Re: Ryan Melvey's Bond Duration as Leverage Article

Post by MachineGhost »

moda0306 wrote: What ever happened to that guy... what a kid!  One of my favorite contributors to this forum.
He's working and getting rich! ;D
"All generous minds have a horror of what are commonly called 'Facts'. They are the brute beasts of the intellectual domain." -- Thomas Hobbes

Disclaimer: I am not a broker, dealer, investment advisor, physician, theologian or prophet.  I should not be considered as legally permitted to render such advice!
User avatar
MachineGhost
Executive Member
Executive Member
Posts: 10054
Joined: Sat Nov 12, 2011 9:31 am

Re: Ryan Melvey's Bond Duration as Leverage Article

Post by MachineGhost »

barrett wrote: I was just reading Ryan Melvey's article on Long Bonds here:

http://www.stableinvesting.com/

He makes the case that one can hold a lower percentage of LTTs (and still not alter the power of bonds to lift the entire portfolio) if they are of longer duration. I guess that is pretty obvious to most PPers, but I am curious if anyone on here lowers the percentage of LTTs they hold based on whether they hold them individually, as EDV, as TLT, or otherwise.

All my bonds are individual issues, mostly maturing 11/15/43, so just under 29 years from now. I confess that, when it comes to Long Bonds, I don't really get the difference between maturity and duration which I think Budd explained somewhere.

Right now I am almost exactly at 4X25. Can I take some profits off the table by selling a few bonds and not mess with the underlying ideas of the PP?

Thanks for any input.
EDV has a duration of 27 years vs 16/17 for normal T-Bonds.  I've backtested with 25% EDV before and it increases maximum drawdown.  You should read these threads for more insight:

http://gyroscopicinvesting.com/forum/pe ... /#msg96254
http://gyroscopicinvesting.com/forum/pe ... #msg110588

Frankly, I feel doing a 3x leveraged PP is a lot less hassle than any of the other "financial engineering" schemes.  And you get to hold more cash too, which is always a bonus!
"All generous minds have a horror of what are commonly called 'Facts'. They are the brute beasts of the intellectual domain." -- Thomas Hobbes

Disclaimer: I am not a broker, dealer, investment advisor, physician, theologian or prophet.  I should not be considered as legally permitted to render such advice!
Post Reply