To: Mike Fowle
From:
Sent Mon 5/12/2014 4:33:06 PM
Subject: Re: ATorus Daily Portfolio Report - 5/9
thanks
On May 12, 2014, at 12:32 PM, Mike Fowler wrote:
Please find attached the Daily Portfolio Report for 5/9. Also, I didn't hear
from Jeffrey on Friday, or I could have been out of cell service. I'm now back, so
anytime he's available let me know to finalize basic commercial terms for IMA per
Darren. Thanks!
- Daily Commentary -
There has been considerable discussion recently on how 'Risk-Parity' strategies have
performed poorly over the past I8-months. While we feel most of the discussion is
a classic example of most people being unable to "separate the signal from the
noise," there is some truth to the issue vexing these funds. For full disclosure, we
don't know the intricacies of the respective models, but can make some
deductions. To be clear, we think risk-parity makes more sense than most, but with
one underling assumption that could potentially create a structural issue with the
methodology.
Specifically, the reliance on long term stable correlations between indicators, which are
generally econometric based. While we assume there are many more than any two
variables driving their respective models, it is evident that the relationship between
10-year break even rates and equity market portfolio weighting has broken down,
recently. Recently, being the operative word, as it's entirely possible these
correlations revert back to historical values. But, what happens if they don't?
Maybe it's demographic shifts that have occurred in the US? Maybe it's the lack of
any differentiating technology that fundamentally alters, at the same rate
previously, the speed at which we can complete tasks that encompass most of our
day or in our own personal mobility?
We don't know, but our point, is that relying on these types of correlations on the
foundation has it's own risk. We think our approach of relying on price and
volatility mitigates a potential structural breakdown in a similar fashion. By
treating all positions in isolation, if we receive a trade signal we act on it,
independent of the balance of the system. This has it's own risk as well. The trade
off we believe is that, although we receive relatively infrequent trade signals (less
than 10 in SPX since 1995), we assume the risk-parity funds receive even fewer.
As such, our win ratio will be less, but we think the trade off is warranted. There's
nothing more disconcerting, when a low-oscillating stable relationship breaks
down.
EFTA_R1_00720371
EFTA02105627
*For quantitative reconstructed methodology of Bridgwater see -
(http://www.markovprocesses,com/download/BridgewaterPureAlpha CaseStudy
MPItpdf)
*For implied All Weather performance as 10-Year Breakeven Rates diverged from Equity
Market Performance see - (http://markovprocesses.com/blog/2013/07/chart-of-the-
week-update-on-bridgewater-all-weather/)
Additional Thoughts
While having some time recently reread the books"Thinking Fast and Slow" and "Rewire
Your Brain," a thought triggered in my mind of why from both a psychological and
neuroscience perspective one might be able to explain why net/gross movement
degrades proportional to the square root of the interval of time forecasted
multiplied by average period realized volatility over the interval.
In essence, while it's possible to model this process stochastically, maybe the reason large
values of net/gross movement occurs over short intervals of time is related to (I)
people's fast System 1 impulsive responses (versus the slower but statistically
reasoning System 2) to the current moment and (Ii) how the System I response
maybe related from a neuroscience perspective to dopamine levels and the
interaction between the prefrontal cortex and the amygdala
(http://www.dana.org/Ncws/Details.aspx?id=42898). Considering how something
may be different than observed takes cognitive effort, and hence depletion makes
the effort more difficult. Not dissimilar from how in ant colonies
(http://nautil.us/issue/12/feedback/ants-swarm-like-brains-think) positive feedback
provides short term productivity but more instability, but negative feedback
provides long term stability to the system.
Wouldn't it be fim for a Bloomberg Terminal to have a built in PET scanner to measure
the current activity levels of the prefrontal cortex and the amygdala? May create
the ability to construct a great mean reversion strategy as net/gross movement is
high over short intervals of time, as PMs dopamine levels decrease to minimal
levels.
Best Regards,
Michael J. Fowler
Intl. Mobile
Sent From My Mobile Device
The information contained in this electronic mail message is confidential information
intended only for the use of the individual or entity named above, and may be
privileged. If the reader of this message is not the intended recipient, you are
hereby notified that any dissemination, distribution, or copying of this message is
strictly prohibited. if you have recieved this communication in error, please
immediately notify us by telephone, and delete the original message.
EFTA_R1_00720372
EFTA02105628