Mojena Market Timing
Frequently Asked Questions


I've heard timing systems sound great, but performance figures are based on theoretical models that are tuned to historical data.  In reality, they switch too often.  And they have to be right twice: getting out of the market and getting back in.  And they don't beat buy and hold.  Right?

Yes, many timing systems are guilty on all counts. Historical data are used because it gives us a means to discover patterns and relationships that affect investment performance. The trick is to generalize as much as possible, so that future patterns are recognized when similar to past patterns and adaptable when not. The work reported in the Hulbert Financial Digest, the popular chronicler of market timers, shows that the top-performing timing services just about match a buy and hold strategy, but at much lower risk (less volatility).

Buying and holding is okay in theory but dangerous in practice. In reality, few investors are capable of buying and holding. Emotions get in the way of needed analysis and discipline. Panic selling and comfortable buying usually lead to selling low and buying high. Moreover, I'm not so sure that authentic buy-and-holders exist. Those who decry timing are perhaps "closet" timers themselves. Examples include raising cash by money managers, rebalancing portfolios among asset classes, and buying and selling individual stocks, whether based on fundamentals, technicals, rumors, tips, or whims.

A buy-and-hold strategy can under-perform for long periods of time. For example, the stock market lost out to both inflation and money markets over the ten years spanned by the 1970s, yet the timing model's standard portfolio more than doubled the market's performance. It can also decimate portfolios by the end of a severe bear market, particularly if funds need to be withdrawn shortly thereafter. The 20% declines in 1990 and 1998 and the 34% crash in 1987 were followed by reasonably fast recoveries of capital for those who stayed invested. But the 48% grind in 1973-1974 delayed new highs for seven years, as did the 49% 2000-2002 bear market. The nearly three-year pounding starting with the crash in 1929 devastated Dow-based portfolios by some 90%; it then took 25 years for the Dow to regain its former high!  The 2007-2008 bear market took the S&P 500 down by 52%. How long will it take this Index to recover?  It’s now three years and counting.

The buy-and-hold mantra popularized during the remarkable super-bull market of the 1980s and 1990s was shattered by the “lost” 2000 decade and its triple bear markets.  Holding through severe down cycles postpones dreams at best, shatters them at worst. And how about the ulcers? Yet, long term, the stock market is the only game in town that leads to financial well being (see Did you know that...? below).

The déjà vu markets are more subtle and frustrating when misfortunate points in time are picked. The Dow hit a high of 995 in 1966 and finally crossed 1000 six years later, with intervening roller-coaster rides of down 22%, up 48%, down 36%, up 73%, and then... the debacle of 1973-74. Once again the Dow sank below 1000... for another six years into 1980. It then seesawed above and below 1000 for a couple more years, bottoming at 777 in August, 1982, and not piercing above 1000 for good until late that year. Imagine living as a buy-and-hold investor through that grueling 16-year odyssey! How many did?  We are currently living through a similar performance with Dow 10,000.

The behavior of the market over long periods is cyclical, revealing sustained uptrends lasting months to years, followed by persistent, but shorter, downtrends.  The 1966-82 market was a shining example of cyclical behavior, a timer's dream market. The period 1982-1990 also offered persistent cycles, surrounding an increasing secular (long-term) trend, unlike the flat trend of the earlier period. The 1990s market was unusually acyclical, with a steep uptrend.  Cyclical behavior was back during the 2000-2009 decade. Markets mirror our human affairs, the push and pull of conflicted greed and fear.  Markets are not random walks, nor are they efficient.

The timing model's objective is to detect changes in these cycles as they happen.  It's not a model that tries to forecast the future level of the S&P weeks or months ahead, a considerably difficult exercise that's been largely unsuccessful in the literature with which I'm familiar.  Rather, it's a model that tries to identify cyclical inflection points, the tops and bottoms of primary cycles, the points at which the market changes direction. To be successful, a model does not have to be right twice, at tops and bottoms, as critics maintain; it "just" needs to sell higher than its buy points and buy lower than its sell points.

Have you heard this one from the critics?  If a timing system misses the best x weeks (or days, months) over some investment horizon, its performance drops to about half that of buying and holding, assuming its performance is the same as buying and holding over the remaining weeks.  Yes, true.  But this view is decidedly one-sided and self-serving; they fail to mention what happens if the timing model avoids the worst x weeks, which after all, is a capital preservation objective of all timing systems.   Looking at the 1970-2011 time period, investment performance drops by 49% should a timing system miss the 30 best weeks, while remaining invested the rest of the time.   Let's be self-serving ourselves.  If a timing system avoids the 30 worst weeks and remains invested the rest of the time, its performance beats buy and hold by 54%.  Ok, let's be fair.   Suppose the timing system misses the 30 best weeks but avoids the 30 worst weeks, while remaining invested the rest of the time.  Now, the timing system beats buy and hold by 6%.  In the final analysis, these exercises are simplistic and futile, because (1) best and worst weeks are more likely to occur within respective cyclical up and down trends, not randomly, and (2) cycle-aware timing models are designed to detect these trends, not best or worst weeks per se

Per Year Returns Basis S&P 500, with Reinvested Dividends

Period

Buy and Hold

Standard Timing Model

Aggressive Timing Model

1973-1982

6.6%

16.1%

18.4%

1978-1987

15.2%

22.1%

25.7%

1988-1997

18.1%

19.6%

25.3%

2000-2009

-1.0%

7.9%

13.9%

As the accompanying table illustrates, both timing and the timing period are everything.  The standard timing model just beat buy and hold over the placid (acyclical) 1988-97 period.  The edge for timing was more decisive over 1978-87, a period that included a down 27% bear market over 21 months during 1980-82 and a 34% bear market that lasted four months in 1987.  The models trounced buy and hold during 1973-82, a span that housed the devastating 1973-74 bear that sliced portfolios nearly in half.  The 2000s decade included three severe bear markets, once again giving the timing model a capital-preservation advantage.  Timing models feed on cycles for sustenance.

The timing model has been live since the middle of 1989, out-performing buy and holders through last year, with much less risk. The 1990s ushered in an era of historically low downside volatility, except for the brief near-bear markets in 1990 and 1998. It's nearly impossible for a timing model, indeed for anyone as the records show, to beat buy and hold in markets that exhibit very little cyclical behavior and no punishing downturns.  The model's advantage clearly became apparent during the 2000-2002 and 2007-2008 bear markets.  And, to be honest, the live implementation of a theoretical system rarely performs better than its tested (theoretical) version.  Since 1990, the annually-revised live models under-performed the current theoretical model by about 3 percentage points per year (10% vs 13%), a metric called shrinkage. The question is: Does its use improve my investment performance... and soothe my nerves? For me the answer is yes, on both counts. 
 
 

Just what is a bull or bear market?  And what’s the difference between cyclical markets and secular markets?

Based on the commonly-cited 20% change to define cyclical bull and bear markets, the S&P 500 printed 16 cyclical bear markets and 15 cyclical bull markets (technically, we’re now in the 16th bull market) since 1929.  The average bear lost 38% over 17 months, with half losing more than 34% in 17 months; the average bull gained 144% over 45 months; half the gains exceeded 101% over 44 months.  It’s not a zero-sum game; it does pay to be in the market most (about 70%) of the time.

 

The bull-market high in March, 2000 was followed by an 18-month 37% cyclical bear.  This low was technically followed by a lightening cyclical bull market that gained 21% over four months, ending in January, 2002.  Another cyclical bear followed into October, 2002, ending a 9-month 34% cyclical bear decline, very close to the averages.  The next cyclical bull market ran five years into October, 2007, yielding a 101% gain.  A 13-month bear market followed, axing 52% from the index by November, 2008.  This was followed by the shortest bull market on record, a 24% surge over two months. Consistent with recent volatility, the succeeding bear market shaved 28% over a record-short two months.  We’re in a 16th bull market as of this writing, confirmed by a greater than 20% spike within March, 2009.

 

Secular markets are not clearly defined, but do span multiple cyclical bull and bear markets.  A secular bear market is characterized by lower cycle highs and lower cycle lows (a downwardly sloping M, the opposite of a secular bull’s upwardly sloping W).  The five-year secular bear that ended in 1942 dropped 60%; the somewhat flat eight-year secular bear that ended in 1974 shaved about 34%.  The great secular bull that started in 1974 ended in March, 2000, a record 26 years with a stunning gain of 2353%, more than doubling the previous record gain from 1942 to 1966. From an alternative vantage point, the secular trend from 1966 to 1982 was essentially flat, with a 10% gain. A secular bull measured from 1982 to 2000 posted a gain of 1389%. The secular trend from 2000 to 2007 is flat, characterized by both new cyclical highs and lows (Ms and Ws); the view from 2000 to 2009 is that of a sharp downward (bearish) secular trend with an overall loss of 56%.  The secular trend from 2000 through 2011 looks to have somewhat flattened, but still downtrending.  This secular trend could easily continue for another decade as the economy (individuals, private and public sectors) unwinds debt from the debt super-cycle of the past 20 years or so. Long, somewhat flat secular markets with many bull and bear cycles are tailor-made for good timing systems.

 

Price to Earnings ratios (P/Es) often define the beginning and end of a secular market.  The average P/E for the S&P 500 is about 16.  At the bottom of a secular bear (beginning of a secular bull) the P/E is below 10.  Many secular bulls end (secular bears begin) with a P/E in the mid-20s.  The 1966-82 bull started with a P/E of 24 and ended with 7.  The secular top in 2000 was characterized by a blowout P/E of 44 (what were we thinking?); at the 2009 bottom the P/E stood at 15, suggesting that the current secular bear has more to go.

Having said this, the model does not concern itself with bull or bear markets per se; rather it strives to detect the beginning of primary up or down trends of 10% or more over at least eight weeks.  These primary trends do operate within the context of cyclical bull and bear markets.  Primary uptrends are more likely within cyclical bull markets, as primary downtrends are more likely within cyclical bear markets.  While it’s possible to exploit a primary uptrend within a bear market, or a primary downtrend within a bull market, experience with the model shows that it’s difficult to do so.  And that such counter-signals are likely to be short-lived.  During downward secular bear markets, intermediate to long-term strategies should pretty much remain in capital preservation (money market) modes.  Eventually, patience will be rewarded with a new bull market and the dry powder to exploit it.  Hanging on to your money for future deployment is, after all, the main benefit of a good timing system.

 

I'm unhappy with switching 100% into stocks at a buy signal, or into a money market at a sell signal. Does it have to be all or nothing?

No. By a 100% switch we mean the stock portion of a portfolio.  Your stock allocation should be a percentage that you can sleep with. For example, if you want to be up to 60% invested in stocks, move 60% or less of your overall portfolio into stock funds at a buy signal. If you always want to have at least 25% in stocks, keep that amount in stock funds during a sell signal. Or progressively shift funds following a switch signal. For example, you could move some proportion into stocks just after a buy signal. Then wait for a market pullback of, say, 3-5% and move another portion into stocks. Alternatively, you could phase in a switch, as in moving into cash in 25% chunks over four weeks.  Also see about diversification, next FAQ.
 

You favor domestic stock ETFs and mutual funds.  How about bonds, gold, commodities, foreign equities, and individual stocks?

From Investopedia:  An exchange-traded fund (or ETF) is “a security that tracks an index, a commodity or a basket of assets like an index fund, but trades like a stock on an exchange. ETFs experience price changes throughout the day as they are bought and sold.  By owning an ETF, you get the diversification of an index fund as well as the ability to sell short, buy on margin and purchase as little as one share. Another advantage is that the expense ratios for most ETFs are lower than those of the average mutual fund. When buying and selling ETFs, you have to pay the same commission to your broker that you'd pay on any regular order.”

A more recent innovation is exchange-traded notes (ETNs).  These also track indexes (and many other financial investments) and behave like ETFs, but are in reality debt securities issued by banks.  As such, their net asset values include the risk of issuer credit downgrades and possible defaults.  They do have certain tax advantages in real estate and commodity spaces, which are beyond the scope of this writing.

NOTE: Important advantages of ETFs and ETNs over mutual funds are no restrictions on number of trades and the ability to trade at any time of the day. A disadvantage: Dividends are issued, but not reinvested; instead they flow to the core cash account. Dividends and their reinvestment significantly add to returns over long time periods, making up thirty to fifty percent of total returns for the S&P 500, depending on time period.

Keep in mind that the timing model addresses only the equity portion of a portfolio, which generally should not be the entire portfolio.  It’s a good idea to diversify portfolios with other asset classes such as bonds, precious metals, commodities, international securities, and real estate.  I primarily invest in ETFs consistent with the model.  But I also diversify by including ETFs in bonds, gold, and certain commodities such as water, agriculture, and energy.  Diversification also includes investment styles (value vs blend vs growth) and company sizes (large cap vs mid cap vs small cap). The S&P 500, for example, would be classified as a large-cap blend Index by Morningstar. If you wish to allocate 40% to assets other than domestic stocks, then move up to 60% of your portfolio between stocks and money market funds at switch signals.

To follow the standard portfolio's stock investments suggests the use of an indexed mutual fund or ETF that tracks the S&P 500. Mutual fund families such as Fidelity and Vanguard include menus of index funds. Another low-cost alternative is to trade ETFs, such as Spiders (S&P 500 Depositary Receipts, symbol SPY) through your broker, a derivative that mimics the S&P 500 and "looks, sounds, and acts" like a stock.  Keep in mind, however, that our performance figures include dividends and their reinvestment, which over time account for a significant portion of total returns.  It’s worth remembering that ETFs issue dividends to the core cash account, but do not reinvest these dividends.

By the way, "domestic" funds and ETFs usually hold a fair percentage of offshore stocks. Also, large domestic companies are multinational, and many other companies profit from overseas economies, so there's actually a substantial international exposure within most domestic stock ETFs and mutual funds.  Moreover, as of 2011, the S&P 500 includes asset classes like real estate (2%) and commodities such as oil, gas, and consumable fuels (10%).

It's also okay to use individual stocks, but keep in mind that their price behavior can differ substantially from the market's behavior. At a sell signal, you should consider either dumping or reducing exposure to individual stocks, unless you have reason to believe that they will swim upstream, or the tax consequences are too much for you to "bear". Consider buying your favorite individual stocks at a buy signal, because an up trending market is often favorable for most stocks. 
 
 

I would like to be more aggressive with some investments at buy and sell signals. What strategies are available?

At a sell signal, aggressive portfolios might consider the purchase of mutual funds or exchange traded funds (ETFs) that anticipate down markets (short the markets).  So-called inverse mutual funds include Bear ProFund (BRPIX), Potomac U.S./Short (PSPSX), and Rydex Ursa (RYURX).  Rydex Ursa, for instance, is designed as an inverse to the S&P 500, with a beta  of -1 (multiplier -1x where x is return).  For example, if the S&P 500 declines 5% in one day, Ursa should theoretically advance 5%.  Other alternatives include ETFs that short a particular index: DOG for the Dow30, SH for the S&P500, and PSQ for the Nasdaq 100.  A more aggressive alternative is to buy a fund such as UltraBear ProFund (URPIX), which shorts the S&P 500 200% (-2x) or -2x ETFs: DXD for the Dow30, SDS for the S&P500, and QID for the Nasdaq 100.  Very aggressive portfolios might look into directly shorting the S&P 500 through Spiders (SPY), the Dow Industrials via Diamonds (DIA), or the Nasdaq 100 Index using Nasdaq-100 Shares (QQQQ).  These ETFs act like index funds but trade like shares and are bought and sold in stock brokerage accounts.  The most aggressive alternative for very sophisticated investors is buying index put options for the Dow Jones Industrials (^DJX), S&P 500 (^GSPC), S&P 100 (^OEX), Major Market (^XMI), Nasdaq 100 (^NDX), or Russell 2000 (^RUT).

At a buy signal, ETFs that mimic our main indices include the previously mentioned DIA, SPY, and QQQQ. Aggressive portfolios could invest in so-called high-beta or ultra funds.  For example, Potomac U.S. Plus (PSPLX) and Rydex Nova (RYNVX) have a beta of 1.5, meaning that their expected daily return is 50% better than the S&P 500 return in an up market (multiplier 1.5x).  The dark side of this flip is an expected 50% greater loss in a down market!  More aggressive still? UltraBull ProFund (ULPIX) has a multiplier of 2x.  Ultra ETFs leveraged 200% (2x) include DDM for the Dow30, SSO for the S&P500, and QLD for the Nasdaq 100.  Buying Spiders, Diamonds, or Nasdaq-100 Shares on margin are other aggressive buy strategies.  Even more aggressive alternatives for sophisticated investors include index call options.

These risky strategies can turbo-charge returns, but should be exercised only by sophisticated investors with high risk tolerances and cast-iron stomachs. They can do serious damage to portfolios should the market go against the signal. The likelihood of loss when trading options is high, even with reasonably good timing. Commitments to these instruments should not exceed 5% of a portfolio.

The accompanying table summarizes the simplest implementations of the model's standard and aggressive portfolios.
 

Portfolio Implementations

Signal

Portfolio

Position

Sample Investments

Buy

Standard 

100% long S&P 500

 

 

Any S&P 500 index fund, such as Fidelity's Spartan Market Index (FSMKX) or Vanguard Index Trust 500 (VFINX).

SPY shares ( "spiders" ). *    Note that dividends are not reinvested for this ETF.

Aggressive 

150% long S&P 500 (1.5x)

 

 

 

200% long S&P 500 (2x)

Potomac U.S. Plus Fund (PSPLX). *

Rydex Nova Fund (RYNVX). *

SSO or RSU shares.

Sell

Standard 

100% T-Bills

Any money market mutual fund that emphasizes Treasuries. 

Aggressive 

100% short S&P 500

 

 

 

 

 

 

 

 

200% short S&P 500 (-2x)

Bear ProFund (BRPIX). *

Potomac U.S./Short Fund (PSPSX). *

Rydex Ursa Fund (RYURX). *

SH shares.

SDS or RSW shares.

*Spiders are traded on the American Stock Exchange at a price that's approximately one-tenth that of the S&P 500 Index. Unlike most mutual funds, these are traded intraday. Rydex Funds are available either directly from Rydex (www.rydexfunds.com) or through discount brokers such as Fidelity, Schwab, and Jack White. Ditto Potomac Funds (www.potomacfunds.com) and ProFunds (www.profunds.com).

An ultra aggressive strategy is to be 200% long during a buy signal (instead of 150% long) and 200% short during a sell signal (instead of 100% short).  For example, buying RSU (2x) during buy signals and RSW (-2x) during sell signals, the model’s aggressive strategy starting with $10,000 in 1970 would (in theory) end with $626 million in 2010 (versus $37 million for our stated 1.5x/-1x aggressive strategy and about $5 million for the standard strategy).  This would pump the annualized return to 30% (versus 22% and 16%).  In practice, expense ratios, trading fees, and especially holding for long time periods in volatile environments would put a very serious dent in these returns. (See CAUTION.)

CAUTION: An important disadvantage of aggressive (leveraged, ultra) long and short mutual funds and ETFs is the negative performance effect of volatility over periods greater than a day, as these funds are designed to replicate the multiplied return for the underlying index on a daily basis. Unlike the use of margin for aggressive strategies, a 150% (beta 1.5 or multiplier 1.5x) long fund or ETF will not likely give a 15% return if the underlying index gains 10% over an extended measurement period, and may even show a loss, depending on volatility and time horizon. For example, the year-long buy signal in 2009 resulted in a gain of about 23% for the S&P 500 index (27% with reinvested dividends) , but just 30% for Rydex Nova, not the approximately 35% that would be expected by a simple 50% increase over the index.  The greater the multiplier (most ultra ETFs use 2x or 3x), the longer the time period, and the greater the up & down daily volatility during the signal’s period, the greater the potential for loss, a result that can be shown mathematically based on compounding formulas.  Again: These instruments and strategies are very risky and should constitute a small percentage of a portfolio, if at all.

 

I'm not sure how to interpret the terms "Annualized", "Years to Double", and "Risk" in the performance comparisons?

The label "Annualized" or "Per Yr Return" is the annualized return from the beginning to the ending year. It's the annual compound rate that would give the ending amounts over the given time horizon. For example, a return of 40% in the first year and a loss of 10% in the second year is equivalent to an annualized return of about 12.2%. If we were to apply the 12.2% rate over each of two years, we would end up with the same amount of money as if we had used 40% one year and -10% the other year. Note that the annualized rate is not a simple average!

The term "Years to Double" is the number of years it would take to double an investment for the given annualized return. It's an alternative measure of performance that's easy to relate to: "Now let's see, if I park my money in a money market with returns equivalent to T-Bills and the average performance over the 1990s is repeated, my investment should double in about 15 years. Uhmm..."

The label "Risk" is an attempt to quantify a rather illusory and subjective concept. By my definition, risk is incurred if I can't beat the return on cash, where T-Bills serve as the proxy for cash or money markets; it's the average deviation between a position's return and the corresponding year's T-Bill return for those returns that under performed T-Bill returns. For example, suppose that over a two-year period T-Bills return 4% and 5%. Over the same two years, investment A gains 20% and loses 10%, while investment B shows returns of 10% and 50%. The average risk for A is 7.5% (the sum of 0 in the 1st year and 15% in the 2nd year divided by 2 years) and the average risk for B is 0% (it outperformed the cash alternative in each year). Investment A is showing risk because it under performed the "riskless" cash alternative in one of those years, whereas investment B did not exhibit this type of risk over those two years. Interestingly, the traditional quantitative measure of risk (standard deviation of returns) would show that B is more "risky" than A (it's more volatile). I'll take upside volatility anytime. It's downside volatility that I want to avoid! By the way, this measure of risk is conceptually the same as that used by Morningstar.


 
How does the model account for external events such as political, terrorist, or military crises?  Or for the occurrence of rare, unanticipated events?

Models do not include these so-called exogenous (external) events. While the model is not directly influenced by unique military, political, terrorist, and natural or man-made disasters, it does have its finger on the pulse of the market-patient based on its diagnostic readings, which do react indirectly to current events through its technical and sentiment indicators.  The model does not assess the cause that explains the market’s behavior; rather it focuses on the market’s symptoms.  Using a medical analogy, it analyzes the patient’s behavior or symptoms based on measurable diagnostics.  The model looks for neither a cure nor root cause; it looks for a course of action (buy or sell) that responds to the symptoms (its diagnostic indicators).  The model thus assesses how the “patient” reacts to these events, much like a real patient’s vital signs are measurable by instrumentation.  When vital signs (scores) are strong, the patient is healthy and can better sustain shocks to the system (harmful external events such as the destructive Japanese tsunami in 2011).  When the model is weak, negative external events can tip it into a sell signal, if not already on a sell signal, as it was at the beginning of the 2008 financial crisis.

Nor can financial models anticipate future Black Swan events, very rare or extremely improbable, surprising and immensely consequential occurrences that nevertheless do happen in the historical record.  Statistically speaking, these rare consequences illustrate extreme tail risk, often erroneously based on the assumption and sketch of a normal probability distribution (bell curve) with skinny tails describing extremely low probabilities for events very far away from the center (5 to 10 sigma or more for the statistical savvy out there), in either direction.  These events, which can lead to either positive or negative consequences, are not capturable in advance by financial models, although it is possible to model Black Swans after the fact, in hindsight, once they’re better understood. A positive Black Swan was the invention of the internet, with huge (mostly) positive consequences that are ongoing.  Another is electronic miniaturization.  Interestingly, both of these examples are the result of military and aerospace research.  Historically negative events include the Black Monday stock market crash in 1987, the burst dot-com bubble in 2000, the attack on September 11, 2001, and the financial crisis in late 2008.  Negative future examples?  We could have a series of cascading and interlinked detrimental and wholly unexpected global economic events that engulf the world in a depression that might make the 1930s seem like happy times. Or, in response to American and Israeli covert or even overt military actions, Iran could possibly shut down the Strait of Hormuz, a chokepoint through which ships about 20% of the world’s daily oil, an overnight crippling blow to world economies. Or we could have another “flash crash” as in May, 2010, at which time the Dow dropped nearly 1200 points (11%) from its intraday high, although recovering to a loss of “just” 3% for the day.  That particular Black Swan was caused by the malfunction of a high-frequency-trading program, but a repeat or worse could be precipitated by either a software attack or a major, believable spoof.  A cyber attack that severely disrupts national energy or electrical grids would be another Black Swan, very negative for most of us, probably positive for companies that deal in cyber security.  Note that positive Black Swans usually develop over long periods of time; the negative variety typically happens in compressed time.  Moreover, future Black Swans can be classified as narrated (known unknowns as their possibilities are discussed in the media) or totally unknown (unknown unknowns or those we haven’t even thought of).  The Black Swan examples cited here are narrated, which we can better prepare for in our investment choices.  See The Black Swan by Nassim Taleb for a compelling and entertaining read on the Black Swan Theory.

Unfortunately, the use of a normal curve in finance, with its known probabilities and mathematical amenability within models, underestimates the probabilities of rare events.  In other words, most actual probability curves have fat tails that show greater probabilities for rare events than those estimated by the skinny-tailed normal distribution.  Thus, “rare” events such as stock market crashes are not quite so rare as believed.  For example, the tail of a current oil crisis now appears to be “fatter” than  previously believed; so is the likelihood of a Greek default and eventual exit from the eurozone.  We assume fatter tails in these examples because they are narrated Black Swans.  Moreover, the perfectly informed, unemotional, and normal-curve-based mathematical world envisioned by Efficient Market and Random Walk Theories (which negate the possibility of market timing) are clearly inconsistent with market behavior and tail events.  The newer theory of endogenous (internal) risk first described in research papers at Stanford University and engagingly explained in Woody Brock’s book American Gridlock addresses the endogenous factors in financial systems (and models) that give rise to rare events, including the uncertainty of which models correctly price assets, the role of leverage, the use of hedging strategies, and the existence of mistakes.  More generally, the book uses rigorous deductive logic to address economic crises and gridlocked political issues such as distributive justice, government deficits, and the health-care dilemma.

The probabilities of future Black Swans are not predictable by definition, but we can seek to protect against their negative consequences and exploit their positive effects.  A robust market timing model reduces, but far from eliminates, the likelihood that we would be caught in a very negative event (by being out of a vulnerable market) and increases the likelihood that we will be in the market when it’s receptive to very positive events.  The live model, for example, took some losses following the dot-com fiasco and its 2000-2002 effects on markets, but which were mitigated compared to actual market losses; ditto the 2008 crisis (see Reality Check).  Financial extreme tail events are rare indeed… to fear them so that we remain perpetually uninvested would be unwise… and surely a prescription for chronic financial underperformance. Think not investing since the Black-Swan crashes in 1929 and 1987.  The theoretical model, by the way, now captures a 1987-type event, given hindsight and the historical data to work with.  And, keep in mind, that the model does not predict the future behavior of the stock market; rather, it seeks to detect whether or not the just-completed week affirms or rejects a primary trend, based on its particular historical data going back to 1970.  Still, a healthy dose of skepticism is warranted by hedging our bets based on the model, should we have negative and sudden Black Swans, as these may not be in the model’s DNA: by not being fully invested during buy signals, by diversifying across asset classes, and by taking some positions that might benefit from negative consequences.  And even then there are no guarantees of even partial inoculation.

 

Why is your service free? Do you plan to charge in the future?

It started as a free service in 1995 more because of time constraints and other commitments than anything. My university faculty job was full time, the market timing modeling work was part of my research function, and the free site was part of my service function. It did serve to establish a public record, it's been consistent with the original (free) spirit of the Internet among researchers, and it's been fun. I retired in June 2007, cruised and lived on my boat until recently, and plan to continue this service as a free giveback for the foreseeable future.

   

Did you know that... ?

Since 1926, a money market investment based on T-Bills would have earned about 3.6% per year, barely edging out inflation at 3.0%. Long-term cash investments are like bad dreams where you run in place. They're the slow boat to poverty. Long government bonds haven't been so hot either, at about 5.8% annually. But the S&P 500, with reinvested dividends, clocked in at 9.7%, a wealth building real (inflation-aware) difference. In plain dollars, Rip-van-Winkling one thousand bucks into T-bills in 1926 would give about $20 thousand for today's wakeup present. Pretty shabby, especially considering that it takes about $13,000 today to buy the equivalent of $1000 then. But stocks looked good in the Roaring 20s. If Rip had placed the money in stocks, the wakeup fund would have grown to an eye-popping $3.0 million. Rip's dreams came to pass... but do we have that much time? And do we remain oblivious to market volatility... as Rip surely did and buy and holders must?

Last revised 03/7/2012


Distribution
Copyright © 2012 Richard Mojena. All rights reserved. All materials contained on this site are protected by United States copyright law and may not be reproduced, distributed, transmitted, displayed, published or broadcast without the prior written permission of Richard Mojena at mojena.com. You may not alter or remove any graphics, copyright or other notice from copies of the content.  You may download or print one machine readable copy and one print copy per page from this site for your personal, noncommercial use only.

Disclaimer
Specific and personalized investment advice is not intended by this communication. Its contents are for the public record as a free public service. Information is based on the analysis of past data and assessments by the models. Future performance may not reflect past performance. Profitable trades are not guaranteed. No system or methodology ensures stock market profits. No guarantee is made regarding the reliability or accuracy of data. In other words, use this stuff at your own risk!


Front Page     Timing Model     Reality Check     FAQ     Downloads     About     Mea Culpa?