Finding Investment Ideas By Screening Stocks and ETFs
Marc H. Gerstein mgerstein@yahoo.com
June 14, 2008
Finding Investment Ideas By Screening Stocks and ETFs Marc H. - - PowerPoint PPT Presentation
Finding Investment Ideas By Screening Stocks and ETFs Marc H. Gerstein mgerstein@yahoo.com June 14, 2008 About me Joined Market Guide in February 1999 as director of investment research. Market Guide was acquired by Multex, which in turn
Finding Investment Ideas By Screening Stocks and ETFs
Marc H. Gerstein mgerstein@yahoo.com
June 14, 2008
Market Guide was acquired by Multex, which in turn was acquired by Reuters.
wide variety of industries and sectors, including household products, specialty retail, restaurant, mining, energy, hotel/gaming, homebuilding, airlines, railroads, and media.
Reuters.com from 2003-06, which provided analysis and stock selection strategies to investors.
appears periodically on CNBC,USA Today, CBS.MarketWatch, The Wall Street Journal, Money Online, and The New York Daily News
School, and a BA in social science from Ohio State University.
Today’s Agenda
Rules: What We Are Trying To Do
established as sound stock selection criteria
average
Benefits Of Using Fundamental Rules – 1
the hottest industry, the one that gets the most favorable publicity, the one that every investor hears about in the car pool
Benefits Of Using Fundamental Rules – 2
investment ideas…. No other approach can match screening when it comes to calling stocks to your attention based on at least some objective showing of merit….”
Analyze, Buy and Sell Stocks by Marc H. Gerstein, Director of Investment Research, Multex (John Wiley & Sons, July 2002)
Benefits Of Using Fundamental Rules – 3
Operating Margin comparison ABC Co Industry Average Trailing 12 Months (TTM) 8.6% 8.8% 5-year average 9.0% 11.5% Even though ABC’s margins are slipping and were consistently below the peer average, we see that ABC’s “relative comparison” has become less unfavorable. This may reflect something uniquely positive at ABC We can design and test rules that capture situations like this
Benefits Of Using Fundamental Rules – 4
management talent, customers, suppliers, employees, proprietary technologies, and so forth
issues based on publicly available information.
earnings surprise, analysis of which has grown to become a significant sub-industry
such questions into reasonable earnings estimate even for the next three months
7,960 fails.
have
to classify each stock in the universe on a best-to- worst scale
the top 10% are eligible for consideration
advance how many passing stocks we will have.
criterion
statistical probability
better than the next 10%
number 26, that stock number 26 is better than stock number 27, and so forth
portion of the overall universe, and following up with a screen to make more precise selections from this “subset.”
the top 10%, and
highest value ranks
since we also used a screen to narrow the universe
Criticisms against rules-based investing
necessarily indicative of what is likely to occur in the future
experience, economic “moats,” patents, competitors, etc.
companies
cable TV or real estate companies, or energy exploration companies whose merits depend on proved reserves
wrong answers (although we don’t know, in advance, which specific decisions will be the ones that go sour)
they picked their winners because of mathematical rules
Deconstructing rules critiques: past performance
as good at forecasting as we like to think we are?
fiscal quarter
earnings estimate, the group that get the most attention, will have a shelf life of less than three months
have become standard fare in the investment community
than in an instant
as we can to help us make rational assumptions about the future
Deconstructing rules critiques: qualitative factors
are?
things about management teams that produce good numbers and vice versa)?
an often-cited proponent of economic moats, had made an investment in McDonalds, which at the time was getting hammered by fast food rivals in a manner consistent with what one might expect from a zero-moat company?
Deconstructing rules critiques: biases
returns, don’t worry that somebody else with a different investment approach finds different winners
biotech?
that, execute to the best of your ability, and let others do their thing with their stocks
Deconstructing rules critiques: being wrong
range
actually, there is no ceiling
ideas, and your probability of success equals what you’d get from a coin flip (50-50) . . .
bad scenario while the other half has unlimited upside
the percentage gains on your good decisions will substantially exceed the losses from your bad decisions
tolerable than is widely realized
A Designer Stock Market
make selections from a large stock universe and try to determine which
in your favor even before you look at a single company or chart
He refuses to do anything to improve your stock selection skills. So if you’re a good stock picker in the real world, you’ll stay good after he waves his magic wand. And if you’re a mediocre analyst, you’ll stay mediocre. But he does offer to let you choose whether the stock market goes up 20 percent
thing in a bull market that rises 20 percent?”
Deconstructing rules critiques: not sexy
Categories Of Rules
business activities and other non-core corporate endeavors
company; if the basic business is bad, I don’t even want to bother looking so I don’t want it on my list
business activities and corporate finance strategies
the company is financially strained, I don’t even want to bother looking so I don’t want it on my list
Categories Of Rules - continued
nothing to mathematics
Strategic System Design
theme
your primary theme
theme
zero
“Behavioral” tests
in the trend (and strength of the trend as evidence that sentiment is changing for better or worse)
My favorite behavioral test
share change over the past 4 weeks
considered a variety of factors (past and future, objective and subjective, etc.) and as a result, saw reason to separate this stock from its peers and treat it more favorably
search for when we screen
relative to the entire universe, but still larger than most investors can plausibly accept as is.
Platform Investing in an entire list
invest in as many as 100 stocks at a time and re-balance the list frequently
contains back-testing capabilities that allow you to have greater confidence in the merits of the full list
Portfolio123 also offers multi-factor ranking (and testing capabilities),
even use the Bronze tier at $29/month
A Portfolio123 demo
above
close reached in the last 10 trading sessions
The Portfolio123 Value Screen
A one-year test of the screen
One-year test of screen -- continued
Two-year test of screen
Three-year test of screen
Testing the screen from 3/31/01
Testing the screen from 3/31/01 – continued
The Portfolio123 Growth Rank
Testing the rank – from 6/2/07
Testing the rank – from 6/3/06
Testing the rank – from 3/31/01
Simulation – Summary
Simulation – Performance Statistics
Simulation – risk data
Narrowing Down
each one, a series of data items.
Pro, or Zacks Research Wizard
did not use for sorting)
Screen result spreadsheet – Buffett (Hagstrom Screen) 40 companies passed the screen
Making the sheet more meaningful
Sort by weekly revision for Q1 and eliminate downward revisions
Next, sort by weekly revision for Y2 and eliminate everything without an upward revision; this gives us a very usable 14-stock
One-at-a-time review
with a great presentation (that’s there in addition to the screener application)
Sample Money Central pages for Tractor Supply (TSCO)
Sample Stock Investor Pro reports for Tractor Supply (TSCO)
Perspectives to get us past the jumble
thought they were
choice of an index is definitely an informed, skilled decision
group
Getting information on ETFs
Screening on IndexUniverse.com
top selection
“Advanced/Power Search” and click the ETFs check box
The secret sauce: we are not really going to screen!
create a report.
choose good columns to show in our report, eyeballing the report, whether on the web site or using a downloaded Excel spreadsheet, should serve us well
chasers and may push us into styles we don’t really want
similar approaches; here performance differences stand a better chance of representing something more substantive
Finding ETFs on IndexUniverse
Next, choose fields for the report
Ignore the “Screen by:” section Go directly to “Submit” and click
Here’s what we get (after clicking on the “Alpha” column to produce a descending sort)
Reviewing the choices we made
substantial change of trend that’s not shared among peers
Reviewing the choices we made – continued
beyond the level that would be naturally expected to flow from the riskiness (volatility) of the portfolio
Assessing our results
two smaller ETFs, one from PowerShares (PWJ) and one from iShares Morningstar (JKH), which have excellent alphas and no apparent negatives
be inclined to split my investment between PWJ and JKH
Suppose we REALLY want something else, like small-cap value
Assessing the Value search
Morningstar (JKL) and a Vanguard (VBR)
than those of peers
Going further down the list . . .
But there’s no real reason to reach down to these low-on-the-list offerings
publicity the firm gets for its unique approach (dividend weighting)
and academia, but the Claymore offering has lackluster returns
investor not love it?) but here, too, returns have not been good
have the full gamut of risk statistics
investing public and raising questions as to whether the ETFs may be liquidated in the event the market retrenches
Why split my investment among several similar ETFs rather than put it all into the best
fundamentals
diversify against a major change the next time a portfolio is rebalanced
frequently, so trading costs present no real obstacle to spreading one’s bets
Getting Information on individual ETFs
PowerShares, Claymore, etc.)
prospectus is to make for interesting reading
Be aware: When seeking a discussion of ETF investment strategy, you usually have to dig
to track its index as closely as possible
Price/Sales, Price/Book . . . yada yada yada”
(again, this is more likely in the exotic asset classes), you’ll find it here; in the discussion of the index
One more morsel: ProShares
ProShares web site and study, study, study!
up 2 percent
ETF that should go down 2 percent may drop only 1.25 percent), but the exposures are so unique, it’s worth tolerating the imprecise targeting
decisions!
Final note: Getting from IndexUniverse to Excel
not easy to find the link.
hard drive and open in Excel (you can then re-save as xls).