It's just a matter of time before we see
a reversion to the mean in which housing prices revert back to the true fundamental condition of the middle class in this country.
«We are impressed by the inexorable tendency for
reversion to the mean in security returns.
By Jack Forehand, CFA (@practicalquant) «Importantly,
reversion to the mean in the investment business extends well beyond the results for mutual funds.
Yeah I remember watching a video of Greenblatt where this topic came up in the class... one time Greenblatt was actually asked this very question: What about
the reversion to the mean in returns on capital (i.e. are you concerned about high ROC companies seeing their returns deteriorate).
If dynamic forces led to the Arctic sea ice decline and lead to an Arctic sea ice increase, we should expect
a reversion to the mean in temperatures (that is, cooling).
Not exact matches
«But
in the long term, there's usually a
reversion to the
mean when it comes
to the Canadian dollar.»
It's one of the most basic rules
in economics:
Reversion to the
mean.
I'm actively looking at my debt and determining if it makes more sense
to pay down mortgages (locking
in a guaranteed ~ 4 % return) or investing
in bonds (~ 1 % returns if held
to maturity) or stocks (uncertain, but I just wrote an article about the current PE ratio and the inevitable
reversion to the
mean and I believe we are likely headed for 10 years of low single digit returns).
The growing possibility of
mean reversion in the U.S. Consumer Staples, Telecommunications, and Utilities sectors is something that we believe baby boomers
in particular may want
to keep
in mind.
«People
in this business always want
to be
in the top decile, and that's a laudable goal, but
mean reversion says that if you're
in the top decile, you're likely going
to be
in the bottom decile,» O'Neill said.
From a «consensual positioning» perspective which touches on this current «
mean -
reversion dynamic
in the marketplace: say this big bond rally were
to gather steam into a much more punishing squeeze of the «all - time» UST short base (largely due
to the previously mentioned lack of «tolerance» for beginning of year performance pain).
Bogle, 87, called me from his Vanguard office at Valley Forge, Pa., on Wednesday
to discuss the hedge - fund redemptions, which he attributes
to a surge of competition
in the sector and the inevitable «
reversion to the
mean» for returns.
2) By extending the projection horizon by an extra market cycle (~ 6 years - the current half - cycle is quite long -
in - the - tooth from a hisorical perspective) the effect of
mean reversion has a greater chance
to dominate the occasional noise that emerges (e.g. during the tech bubble) over shorter horizons.
I operated
in the world of supply and demand which translates into
reversion to the
mean for an investor.
The mechanism for the lower returns,
in my view, is not going
to be some kind of sustained
mean -
reversion to old - school valuations, as the more bearishly inclined would predict.
They note that periodic rebalancing
to fixed asset class weights tends
to perform well
in trendless markets exhibiting
mean reversion but suffers during extended trends.
For more on standard deviation and
mean reversion, I invite you
to download my whitepaper, «Managing Expectations: Anticipate Before You Participate
in the Market.»
Because of a rougher - looking schedule than
in years (I
mean, who really knows until halfway through the season — it was a big surprise
to most that the AFCW wasn't tougher
in 2017 for instance, or that the NYG would suck so epically), and no Shazier, and general
reversion to the
mean, and no particular reason
to think Ben will be available for every game... I'll say 10 -5-1 with losses @ Tampa, @ Cin, Carolina, @ Denver, LAC.
The drop
in Conservative support looks striking, but is probably largely a
reversion to the
mean after the unusual neck - and - neck Ashcroft poll last week.
In the case of YouGov, this is actually within the normal range of their recent polling (they had the Tory lead at 7 and 8 points in August too) and the MORI poll is probably at least partially a reversion to the mean after an anomalously high 45 % score for the Tories their previous pol
In the case of YouGov, this is actually within the normal range of their recent polling (they had the Tory lead at 7 and 8 points
in August too) and the MORI poll is probably at least partially a reversion to the mean after an anomalously high 45 % score for the Tories their previous pol
in August too) and the MORI poll is probably at least partially a
reversion to the
mean after an anomalously high 45 % score for the Tories their previous poll.
With respect
to students and test scores,
reversion to the
mean suggests that students with scores
in the upper or lower tail of the test - score distribution are likely
to perform closer
to the average when tested more than once.
So you're seeing a
reversion to the
mean effect — a print success (and hence e-success)
in the UK just doesn't affect the US odds very much and vice versa.
I continue
to believe that rates will have
to go up (e.g.
reversion to the
mean, reduce the «real» value of $ 20T
in US debt, expiration of «conspiracy theory» suggesting the Fed held rates on the floor until the election
to get Hillary elected, etc, etc)....
Given the strength of the
mean reversion effect
in volatility, for the VIX
to stay elevated for a long period of time requires a series of crises akin
to what we had
in 1998 - 2002.
Even though I gave no specific rules, you should be able
to build your
mean reversion strategy using the steps outlined
in this post and the previous one.
In this context, I can agree there is a
reversion to the «
mean» that might be partly captured with slice and dice rebalancing.
However, if we stick
to the base rates on fundamentals, we get a much lesser
mean reversion than we get
in stock market returns.
A company with a high return on net assets ratio, profit margin, or asset turnover relative
to its industry median tends
to have greater
mean reversion in these measures.
The types of structural changes that can cause distribution
to go awry range the spectrum, and the following is a list, albeit not comprehensive, of why these changes
in the context of
mean reversion over time.
All these things look ripe for
mean reversion, which seems
to be a key skill
in deep value investing.
You must train yourself
to follow your system's rules no matter what and remember that the strength of a
mean reversion system is the high probability thatmarkets will stay
in a range.
Given the volatility of this income, this is a low value driver of NIM and should be looked at
in a historical context when projecting into forward periods due
to the likelihood of
mean reversion.
Situations
in which
mean reversion does not happen are rare enough as
to make a
mean reversion assumption a consistent friend
to the investor.
In general for
mean reversion adding any kind of stop seems
to make the numbers worse.
In most of my
mean reversion posts, I use RSI (2)
to determine if a stock has sold off.
Juicy Excerpt # 5: Because the precise timing of this
mean reversion is not known
in advance, and is indeed random, expecting the result
to happen
in the short - term will not be possible.
LSV frame their Contrarian Investment, Extrapolation and Risk findings
in the context of «contrarianism,» arguing that value strategies produce superior returns because most investors don't fully appreciate the phenomenon of
mean reversion, which leads them
to extrapolate past performance too far into the future.
3) You need
to add
in some momentum and weak
mean reversion for asset prices.
In all of my years of doing quantitative analyses of equity and debt markets, as well as the economy as a whole, my models have shown me that there is a tendency toward mean - reversion, but it is a very weak tendency that is swamped by shocks to the system in the short ru
In all of my years of doing quantitative analyses of equity and debt markets, as well as the economy as a whole, my models have shown me that there is a tendency toward
mean -
reversion, but it is a very weak tendency that is swamped by shocks
to the system
in the short ru
in the short run.
On reflection, i suspect then that the above graph doesn't just capture
mean -
reversion in CAPE, but also
mean reversion in the other factors contributing
to total return — inflation, dividends, and growth rates.
The paper also discusses
in some detail a phenomenon that I find deeply fascinating,
mean reversion in earnings predicted by low price -
to - book values:
It is a book about why long - term investing serves you far better than short - term speculation; about the value of diversification; about the powerful role of investment costs; about the perils of relying a fund's past performance and ignoring the principle of
reversion (or regression)
to the
mean (RTM)
in investing; and about how financial markets work.
Mean -
reversion is involved
in value investing,
in the sense that return on equity for firms tends
to mean - revert over time.
Even if the daily TF has formed a bearish pinbar, the 2 hour TF is
in a down trend but the bullish engulfing candle shows a
reversion to the
mean.
Most of the explanations we have discussed for the rise
in the CAPE ratio are inherently temporary and are subject
to the risk of
mean reversion The CAPE naysayers tend
to focus on the reasons why a high CAPE ratio can support a high return and tend
to ignore the reasons this may not be the case.
Perhaps the relationship is,
in fact, weak and the factor is not prone
to mean reversion.
Rather than rely on past averages
to forecast future returns, we use a building - block approach that adds current yield, likely long - term growth
in income, and some
mean reversion in valuation multiples
to create forward - looking returns.
In the long run, it becomes self - defeating and gives rise
to mean reversion.
The eventual overshooting
in prices then gives way
to long - run
mean reversion.
Each of these factors is likely
to be temporary; if the rationale for high multiples goes away, then we'll get
mean reversion in CAPE, possibly as a severe market downturn.