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Investment Insights for 37 Years
MAY 2026 ISSUE
Gray Emerson Cardiff

About the Author

Gray Cardiff has been the editor of Sound Advice since its inception in 1988. The Sound Advice Model Portfolio has significantly outpaced the return of the S&P 500 Index since 2000 with less volatility and risk. Mr. Cardiff also manages the Sound Advice Diversified Growth Fund, which maintains positions exclusively in all of the Sound Advice model portfolio recommendations. He is also an investor in the Fund on a side-by-side basis with other investors.

Gray Emerson Cardiff

Editor Since 1988

Staying the Course


A new feature is introduced this month: News and comments relevant to the most recent month are highlighted in bold. Otherwise, context and longer term prospectives will be in regular fonts.

Last month we advised not to get sidetracked by the spectacle of the military activities and lose sight of the major trend, which is revealed by our Diffusion Indexes. Since then, the S&P 500 rose to record highs.

We rely on the Sound Advice Diffusion Indexes (page 9) to identify business cycles because they have an accurate track record of predicting major stock market trends for the last 50+ years. They work by observing changes in the most sensitive leading and lagging economic indicators that lead to shifts in interest rates. During “Aggressive” signals over the last 50 years, the S&P 500 climbed an average of 31.5 percent. The market has undergone corrections but has never crashed. All market crashes have occurred during “Caution” signals. When the stock market was not crashing, the S&P 500 either meandered, climbed moderately, or declined in an extended bear market, recording an average decline of 0.6 percent.

The most recent signal change was in late 2022, when our Diffusion Index of Leading Indicators (page 8) recorded a zero reading which led to a new signal change from “Caution” to “Aggressive”. That signal was prescient as we began a new bull market.

As reliable as our Diffusion Indexes are, it is still prudent to keep an eye on the underlying indicators for any sudden changes that would reveal an oncoming adverse event or trend. One of the leading indicators used by our Diffusion Index of Leading Indicators is the “Initial Claims for Unemployment Insurance”. This is a reliable, timely leading indicator of economic activity and it does not get revised in future months, unlike many other indicators. Initial Claims have been steady this year through April, indicating that there was not significant economic deterioration during the month.

Our next signal will come from a 100 percent reading of our Diffusion Index of Lagging indicators, revealing that the economy is overheating and exerting a lasting upward pressure on inflation and short-term interest rates. From here, it would take a seismic increase in all of the underlying economic indicators contained in our Diffusion Index of Lagging Indicators to cause a 100 percent reading. Accordingly, the end of the current bull market is still not on the horizon.

Invest Alongside Gray

Gray Cardiff invites you to invest side-by-side with him in the Sound Advice Diversified Growth Fund. Mirroring all newsletter recommendations, the Fund offers flexible income distributions, and is IRA-eligible.

Minimum: $125,000.

Request a Prospectus
Fund performance chart

Investment Performance Comparison


Growth of $100,000 invested in 2000

This chart shows the growth of $100,000 invested in the S&P 500 (in gray) since 2000 would have grown to $465,820, versus $834,366 if it was invested in the Sound Advice recommendations (in blue) for 79 percent more capital return.

The Model Portfolio - May 2026


Our individual stock recommendations are special situations offering a compelling value proposition. We are also recommending liquid electronically traded funds (ETFs) investing in sectors that are bound to benefit in the months and years ahead. Comments in bold reflect news and comments within the past month. All recommendations, as well as their dividend yields and buy/hold/sell recommendations, are summarized in the table on page 7 and sorted by investment
objective categories and then in alphabetical order. 

Downside Hedges

We include downside hedges as part of the portfolio to reduce risk and dampen volatility by profiting during market corrections. Minimizing losses, even at the expense of limiting the upside, has been our key strategy for outperforming the market over the long run.

ProShares UltraShort S&P 500 (SDS) is designed to produce two times the daily fluctuations of the traditional S&P 500 Index, only in reverse. For example, a decline of say,1.0 percent in the Index will cause SDS to increase by 2.0 percent. Conversely, an increase in the Index will cause SDS to decline by 2.0 percent. We are including SDS as a hedge because the S&P 500 Index is distorted and inflated.

The stocks of the Magnificent 7 -- Nvidia, Apple, Microsoft, Amazon, Alphabet Class A (Google Class A & C), Tesla, Meta Platforms Class A, and Broadcom – comprise 37 percent of the S&P 500 Index due to their heavy capitalization weighting, and are perched at an astronomical price/earnings (P/E) ratio The AI race is forcing these companies to transform from low-debt, high cash flow Wall Street darlings to spenders of billions, financed by debt and cash flow, no longer deserving of lofty P/E ratios.

Another sign that the S&P 500 Index is inflated is revealed from the Sound Advice Risk Indicator (page 8), which compares the Index to house prices for 130 years. The latest reading is 2.41, which puts the S&P 500 Index above the high-risk watermark of 2.0.

The Russell 2000 Index

The Russell Index is comprised of small and mid-sized domestic companies which tend to be more volatile than the overall market, especially during market corrections because 40 percent of the 2000 companies do not have positive earnings. The following two ETFs below can also be used as a downside hedge because they short sell the Russell 2000 index. They differ in the leverage employed, which you can choose one according to your investment objectives and risk
tolerance. 

ProShares UltraShort Russell2000 (TWM) is designed to produce two times the daily fluctuations of the Russell 2000 index (IWM). A decline of say,1.0 percent in the Russell 2000 will cause TWM to increase by 2.0 percent. Conversely, an increase in the Russell 2000 will cause TWM to decline in the same fashion.
ProShares UltraShort Pro Russell2000 (SRTY) is designed to produce three times the daily fluctuations of the Russell 2000 index. 

Special Situations

The following stocks are individual companies presenting extraordinary values within their respective industries. Here they are in alphabetical order:

Cisco Systems (CSCO) is a value play in the AI boom because it supplies the backbone of data center networking equipment and software. CSCO is a direct beneficiary of the billions of capital spending slated for data centers and AI related equipment. Cisco’s management is reporting strong AI business and is confident that AI will continue to be a driver of growth. CSCO has climbed 48 percent during the last 12 months.

In April, Cisco released its latest annual industrial research report, the State of Industrial AI Report, examining how critical infrastructure like factories, utilities, and transportation systems are accelerating their direct deployments of AI. The survey shows industrial AI has moved from a future consideration to active deployment, with 61% of organizations now using AI in live industrial operations where performance, reliability, and security have direct physical consequences, and 20% reporting scaled, mature deployments. Across manufacturing, transportation, and utilities, AI is powering machine vision, robotics, mobility, and safety critical operations. Most organizations plan to increase AI spending (83%), and nearly nine in ten expect meaningful outcomes within the next two years (87%).

JP Morgan Chase (JPM) surpassed expectations by reporting strong first quarter earnings in April that were 17 percent higher than the same quarter one year ago. JPM of is a good value for what is considered the world’s highest quality banking enterprise with diversified businesses and prudent underwriting policies. Deregulation of the industry will
continue to be a substantial benefit to JPM. The Company has a long history of growing dividends. Management says that productivity in operations is improving and that AI programs could be scaled further. JPM has risen 19 percent during the past 12 months.

Moderna (MRNA) is a pure investment play on Messenger RNA (mRNA) technology. This revolutionary technology is on a path to provide solutions for not only vaccines, but for cures and treatments for the most deadly and debilitating diseases haunting humanity. MRNA has risen 84 percent during the past 12 months, from $24 to $50 per share.

While the upside is tremendous, risk is above average because earnings are not projected to turn positive for another year or two. Management believes that the company’s cash reserves will be sufficient to sustain the business while it develops vaccines and treatments. Cancer treatments furthest along in phase III trials are for melanoma and lung cancer.

Moderna is working on personal cancer vaccines by analyzing fragments of cancer cells in a blood draw, allowing the detection of cancer in early stages, before it graduates into more serious later stages. Data will be transmitted through the cloud to Moderna’s IT system, and AI algorithms will be used to compare an individual’s particular cancer cell mutation to the hundreds of thousands of possibilities and to the  treatments that are currently effective. Management says Moderna will be able to analyze and develop a treatment customized for an individual patient within 30 days of the blood draw, and over time with more and more data, the process will become more efficient and accurate.

RLJ Lodging Trust (RLJ) remains a solid BUY. At $8 per share, the annual dividend of 60 cents is a yield of 7.5 percent, and the dividend is well-covered by the company’s cash flow. The net asset value is more than double the price of the stock. RLJ has risen 10 percent during the past 12 months in addition to the dividends.

RLJ has a large and diversified portfolio of hotel  properties, with 96 premium-branded, high-margin, focused-service and compact full-service hotels located in 23 states and Washington DC. This is a low-leveraged REIT because the company’s debt is only 46 percent of its (book value) assets.

The portfolio’s net operating income (NOI) for the trailing four quarters was $361 million. Using a conservatively high cap rate of 7.5 percent produces a portfolio value of $4.82 billion. Adding other assets and subtracting liabilities leaves the company equity of $2.84 billion. After subtracting the liquidation value of the company’s only preferred stock of $328
million leaves equity for the common shareholders of $2.5 billion. Dividing that equity by the 149 million shares of RLJ outstanding translates to a net asset value of $16.81 per share – more than double the current price of the stock price. 

RLJ’s $1.95 Series A Cumulative Convertible Preferred (RLJPRA) is RLJ’s only preferred stock, with a liquidation preference of $25 per share, which is the maximum value that would be received from an acquisition of the company. Use limit orders on dips below $25 to accumulate this preferred stock for a safe annual yield close to 8 percent.

The dividends for this preferred only consumed 11.7 percent of the company’s cash income and must be paid before common dividends, making the yield highly secure. 

Special Situations in Energy

Last month our energy selections were moved from a “BUY” to a “HOLD” because they had risen substantially as geopolitical events unfolded in Venezuela and Iran. The rise was so steep that the risk/reward ratio became no longer favorable. Stock prices have settled back from their peaks but still remain elevated. Our energy selections remain on HOLD because prices are bound to fall as events in Iran subside. When that happens and our energy selections correct back to reasonable prices, they will be moved back to “Buy” recommendations.

Considering the longer term, as oil-rich parts of the world open up, there will be new sources of demand for the services and resources of US energy companies. Production and revenue is bound to increase even without high energy prices.

Energy providers also stand to benefit from the AI boom in two ways: Power needs from data centers is expected to double by 2030 after decades of stagnant demand in the US, and AI is a promising tool for finding, producing, and servicing natural resources. 

Chevron (CVX) has a strong balance sheet with low debt, which along with plenty of free cash flow, gives it staying power during adverse conditions with the ability to make timely accretive acquisitions. Future dividend increases are bound to be supported by production growth from assets in the Permian Basin. The acquisition of Hess Corporation (HES) in July 2025 gave the company a 30% share in the Guyana Stabroek block which holds the equivalent of 11 billion barrels with a low production cost. Chevron’s daily production has risen above 4 million barrels.

CVX has climbed 36 percent during the past 12 months. Earnings will be benefiting from high oil prices because 85 percent of profits come from oil production.

Exxon Mobil (XOM) has low production costs. Production from its immense Guyana field it shares with Chevron is boosting earnings. The benefits are also appearing from the 2023 acquisition of Pioneer National Resources, evidenced by new production growth in the Permian Basin. XOM also has an attractive dividend yield with a history of dividend increases. The dividend was increased again in 2025 for a solid string of 43 annual dividend increases. XOM has 42 percent during the past 12 months.

On April 22, Golden Pass LNG, a joint venture between Exxon Mobil and Qatar Energy, launched its inaugural shipment of liquefied natural gas (LNG) to Europe from Texas. Construction on the $10B LNG plant began seven years ago and expects to export 18 million tons a year when it is fully operational. 

Halliburton (HAL) is a premier oil field services company. The world’s accessible oil reservoirs have been developed, even in the Middle-East. Now it takes more sophisticated equipment and technology, which is what Haliburton provides. That trend puts HAL on an inexorable growth path.

HAL reported first quarter earnings in late April results that beat expectations. Revenues came in at $5.4 billion, 4% lower than the prior quarter and close to the same quarter last year. HAL has doubled during the past 12 months.

Halliburton has technological innovations that are tailor made for the unconventional reservoirs in the US, including its directional drilling system, the iCruise CX system, which is a rotary steerable tool, and the LOGIX drilling automation platform that makes it possible to reliably drill in curves and laterally in a single run. This new technology has been
rapidly deployed in the Permian Basin.

Other relatively new Halliburton technologies include the Zeus platform, electric pumping units, Octiv Auto Frac, and Sensori subsurface measurement. These systems increase efficiency and replace outdated and costly diesel generators as power sources for onsite drilling with generators capable of using natural gas, LNG, and a variety of other fuels that are available on the drilling site.

In Alaska, where some of the nation’s largest oil and gas reserves reside, Halliburton’s EarthStar ultra-deep resistivity tool and reservoir mapping service delivers unmatched performance on the North Slope. Exploring in Alaska was curtailed by the Biden Administration, but that is now expanding under the Trump Administration.

Valero Energy (VLO) was added to the portfolio several years ago at $60.41 per share. As earnings have grown, VLO is still a bargain with a relatively low P/E and attractive dividend yield. Valero makes its money from the “crack spread”, which is the profit margin derived from purchasing crude oil, turning it into refined products such as gasoline and jet fuel, and selling those refined products.

VLO has climbed from 133 percent during the past 12 months on the prospects of expanding margins from higher prices for gasoline, jet fuel, and other refined products.

Valero has the unique ability to refine both light crude oil coming from fracking in the US Permian basin as well as the sticky heavy crude coming from Venezuela. Light crude oil is great for refining into gasoline but not much else. Heavy crude is sought by refiners because it refines into many other products at high profit margins, ranging from diesel fuel to asphalt. Access to Venezuelan crude will benefit VLO over the longer term when production there increases.

Valero’s ability to refine a variety of crude oil types also gives it the ability to achieve discounts for its crude oil feedstocks. This flexibility and access allow Valero to capture the highest margins among its competitors because it can take advantage of the temporary gluts of crude, whether it’s low or high-quality crude or light sweet (low sulfur) or heavy sour (high sulfur) crude, to obtain the best available discounts for its feedstocks. The company’s refineries also have access to the US pipeline network from its gulf coast locations.

Valero’s “green energy” joint venture with Diamond Green Diesel is producing renewable diesel at large profit margins. Renewable diesel is made from animal or plant waste material which reduces greenhouse gas emissions up to 80 percent because it only releases as much carbon dioxide as the material originally contained. Renewable diesel does not congeal at low temperatures which means it can be easily transported through pipelines. 

Equal Weight S&P 500 ETF

Invesco S&P 500 Equal Weight ETF (RSP) invests in all the S&P 500 stocks but on an equally weighted basis and rebalances its portfolio each quarter to maintain its equal weights. This preservation of value is behind the superior performance over the traditional S&P 500 Index over the long-term. This ETF is bound to benefit from the broadening out of the bull market.

The Magnificent 7 stocks only represent 2.2 percent of this ETF. In 2025, RSP grew by 9.3 percent. The Magnificent 7 stocks only accounted for 0.7 percentage points of that growth.

From the beginning of 2000, RSP has outperformed all the major indexes, with an annual percentage rate (APR) of 6.99%. This compares to the Dow Jones Industrials with an APR of 5.4%; the Russell 2000 with an APR of 5.1%; the Nasdaq Composite with an APR of 6.4%; as well as the traditional S&P 500 Index with an APR of 6.3%. These returns compare to the APR of 8.9% from the Sound Advice recommendations over the same period.

Comparing RSP to the S&P 500 is a way of keeping an eye on the breadth of the market. If the evenly-weighted RSP is out-pacing the capitalization-weighted S&P 500, then the breadth is expanding which is a healthy sign. So far this year, RSP has risen 6.2 percent, more than the 5.3 percent rise of the S&P 500.

Sector ETFs

Included in the Sound Advice model portfolio are the following electronically traded funds (ETFs) investing in sectors that are bound to benefit in the months and years ahead from fundamental changes in geopolitical, medical, and economic landscapes. These ETFs contain a portfolio of stocks, much like a mutual fund but, ETFs are liquid and trade like stocks with their own ticker symbols. Their prices are determined by the value of the portfolio of stocks they hold.

Artificial Intelligence

Global Robotics and Automation Index ETF (ROBO) is investing in the key to making the world’s companies more efficient -- robotics and automation. Approximately half of the portfolio is in robotics technologies, and the other half is in the technology controlling the robots – sensing, computing actuation, and artificial intelligence (AI). This is a diverse way of investing in AI which is the next technological frontier and will be playing an increasingly greater role in the way companies operate around the world. ROBO has risen 46 percent during the past 12 months, exemplifying the expanding use of AI.

Biotech ETFs

Biotech companies offer explosive profits because they are the source of the world’s top breakthrough vaccines and treatments. Their stocks are often volatile, making diversification essential. This can be accomplished by investing in a diversified electronically traded fund (ETF) investing exclusively in a portfolio of biotech companies.  

ARK Genomic Revolution Multi-Sector (ARKG) is an actively managed biotech ETF investing in companies expected to benefit by incorporating technological and scientific developments, along with advancements stemming from mapping the human genome. Technological breakthroughs in artificial intelligence and other high-tech advancements have cut the cost substantially of opening new opportunities and putting this sector on the cutting edge of many new innovations. ARKG has risen 42 percent during the past 12 months.

Balanced Sector ETFs

The following ETFs rebalance their holdings quarterly to equalize the values, which offers a greater degree of evenly weighted diversification and adds stability as well as safety to a portfolio. This practice often provides a superior performance because it offers upside from stocks that are often under-weighted in the portfolios of other ETFs and mutual funds.

Virtus LifeSci Biotech Products (BBP) is a passively managed biotech ETF that weighs the portfolio selections essentially equally, as opposed to the more typical practice of weighing selections according to market capitalization. This is an important aspect because biotech ETFs who weigh their portfolio selections essentially equally have been the best performers because they have larger investments in smaller biotechnology companies which have become acquisition targets for large pharmaceutical companies looking for ways to expand. BBP has risen 52 percent during the past 12 months.

Health Care

Health care stocks have several traits that make them desirable long-term investments. They are well-suited for an aging population, which exerts disproportionate demands on the health care industry. As the world’s population continues to age, this trend is inexorable, making the health care sector defensive in nature and more insulated from economic cycles than other sectors. Health care companies are also prime candidates for new AI technologies that
are bound to improve efficiency and accelerate growth. 

One of the main criticisms of most health care ETFs is that they are dominated by a relatively small number of large companies, such as Johnson & Johnson, which distort the performance of the typical health care ETF portfolio.

Invesco’s S&P 500 Equal Weight Health Care ETF (RSPH) tracks the S&P 500 Equal Weight Health Care Index, which tracks 65 health care stocks represented in the S&P 500, but weights each holding evenly. Both the Index and RSPH are rebalanced quarterly. This approach has given RSPH a superior performance to the large health care ETFs. RSPH has risen 52 percent during the past 12 months.

Consumer Staples

Invesco S&P 500 Equal Weight Consumer Staples ETF (RSPS) invests in consumer staple stocks within the S&P 500 Index. Consumer staples are those unexciting products we use every day without much thought, ranging from food, beverages (including alcohol), household goods (including cleaning supplies), and hygiene products.

These are products that people are unable (or unwilling) to remove from their budgets regardless of their financial situation. The nature of these products makes this sector defensive and much less vulnerable to periods of soft or negative economic growth. RSPS is flat during the past 12 months, after spiking 10 percent in February as the Iran war broke out.

Infrastructure and Cap EX

Trillions are going into capital expenditures. Hundreds of billions alone are slated this year to build the brains of AI – data centers and the related infrastructure. Outside of the AI boom, trillions are planned for new production facilities in a wide range of industries, from critical minerals and materials to Pharmaceuticals, to move production onto the safe and reliable shores of the US. These ETFs are bound to be primary beneficiaries.

Invesco S&P SmallCap Industrials ETF (PSCI) is based on the S&P SmallCap 600 Capped Industrials Index which is designed to measure the overall performance of the securities of US industrial companies with small capitalizations (caps). These domestic companies are engaged in the business of providing domestic industrial products and services, including engineering, heavy machinery, construction, electrical equipment, aerospace, and defense,
as well as general manufacturing. They will reflect the positive impacts more strongly than larger companies from an increase in domestic capital spending. Small cap construction companies typically operate inside the US on local construction projects that tend to employ local companies as subcontractors, even when general contractors may be national companies. PSCI has risen 33 percent during the past 12 months.

Invesco S&P 500 Equal Weight Materials ETF (RSPM) invests in the companies that comprise the S&P 500 Equal Weight Materials Index. The portfolio contains prime examples of basic materials companies outside of the oil and gas industries. Increased capital expenditures will translate into demand for basic materials. RSPM has risen 23 percent during the past 12 months.

 

Portfolio Summary Table


Stock and fund prices may delayed by up to 20 minutes.

Growth with Income Symbol Price Yield (%) Action Limit
Chevron CVX 191.37 3.57 Hold
Cisco Systems CSCO 118.20 1.39 Buy 124.11
Haliberton HAL 42.30 1.61 Hold
Invesco Consumer Staples ETF RSPS 29.87 2.78 Buy 31.31
JP Morgan Chase JPM 303.00 1.85 Buy 328.89
RLJ Lodging RLJ 9.61 6.24 Buy 10.75
RLJ Lodging Trust - Preferred A 1 RLJ-PA 25.23 7.73 Buy 28.50
Valero VLO 253.77 1.78 Hold
Growth Symbol Price Yield (%) Action Limit
Exxon Mobil XOM 156.28 2.64 Hold
Genomic Revolution Multi-Sector ARKG 30.53 Buy 31.36
Golbal Robotics & Automation ETF ROBO 85.24 0.36 Buy 85.73
Invesco Basic Materials ETF RSPM 38.13 1.84 Buy 41.36
Invesco Health Care ETF RSPH 30.80 0.71 Buy 31.96
Invesco Small Cap Industrials ETF PSCI 166.09 0.57 Buy 181.15
Moderna MRNA 47.26 Buy 48.24
S&P 500 Equal Weight ETF RSP 204.71 1.40 Buy 213.61
Virtus LifeSci Biotech Products BBP 86.81 Buy 89.02
Hedges Symbol Price Yield (%) Action Limit
ProShares UltraShort Pro Russell SRTY 26.50 5.28 Buy 29.44
ProShares UltraShort Russell 2000 TWM 23.81 2.31 Buy 25.89
ProShares UltraShort S&P 500 SDS 58.09 1.39 Buy 64.96
  1. RLJ Lodging Trust - Preferred A: The symbol for this stock is RJLPA on some systems, like Fidelity.


Note to the table: The right hand column is the highest recommended price limit for purchases.

General Comments: Our statistics are based on the assumption that $10,000 is invested in each position. When a new position is added, we assume the same $10,000 amount is invested in the new recommendation. When we recommend adding to a particular position, as we have done over the years, we assume another $10,000 is invested
again in that position.

If you are picking and choosing, you can focus on the sector of the portfolio that matches your investment objectives. Alternatively, you may have a higher degree of comfort with certain industries, funds, or stocks because of past experience or your profession. In that case, you may want to invest more heavily in one sector, or in one or more individual recommendations.

As always, broad diversification will temper volatility, add to safety, and improve long-term performance. 

Capital Competition: Real Estate versus Stocks: The Sound Advice Risk Indicator


Signal  S&P 500 $$ Houses $$ Switching $$
Jan 1895 4.25 $25,000 4,400 $25,000 Stocks $25,000
Feb 1906 9.80 $57,647 4,400 $25,000 Stocks to Houses $57,647
Jan 1921 7.06 $41,529 6,500 $36,932 Houses to Stocks $85,160
Jul 1928 19.16 $112,706 7,900 $44,886 Stocks to Houses $231,115
Mar 1932 8.26 $48,588 6,700 $38,068 Houses to Stocks $196,009
Dec 1936 17.06 $100,353 6,500 $36,932 Stocks to Houses $404,832
Apr 1942 7.84 $46,118 6,700 $38,068 Houses to Stocks $417,289
Nov 1955 44.95 $264,412 13,750 $78,125 Stocks to Houses $2,392,492
Jun 1974 89.79 $528,176 39,500 $224,432 Houses to Stocks $6,872,976
Sep 1999 1,318.17 $7,753,941 162,000 $920,455 Stocks to Houses $100,899,324
Nov 2008 883.04 $5,194,353 217,100 $1,233,523 Houses to Stocks $135,217,551
Aug 2024 5,478.21 $32,224,765 405,800 $2,305,682 Stocks to Houses $838,863,632
Apr 2026 6,939.99 $40,823,489 419,200 $2,381,818   $866,563,909


The table below the graph shows the growth of $25,000 invested in stock or houses since 1895. The left columns show the results of switching to stocks when the Risk Indicator dropped below 1.0 when the risk in stocks is low, and then switching to houses when the Risk Indicator rose above 2.0 when the risk in stocks is high.

Although an investment beginning with $25,000 in1895 could have made money being in either stocks or housing, had an investor followed the signals of the Sound Advice Risk Indicator, he or she would have made $866 million versus $40.8 million by simply holding stocks through the ups and downs, which is 21 times more money.

Based on the latest data above, the Sound Advice Risk Indicator reads 2.41.

Explaination and Reasoning

There are few forces that are more important to a market’s destiny than the amount of capital that is available to it. In a normal situation, capital will flow easily between markets as their underlying conditions change. But if a market becomes dangerously superheated, it will absorb a larger proportion of available investment capital than economic conditions and market demand can justify. This change will be reflected not only in the rising market’s prices but also in the prices of competing markets, which will be lower than their underlying fundamentals would indicate they should be.  Over the last 120+ years, we can see this titanic struggle between the stock market and its foremost competitor for investment dollars: real estate.  

To reveal this phenomenon, we have set up an equation based on the ratio of the S&P 500 Stock Index to median price of new houses for each month over the last 130 years. This equation exhibits an elegant financial minuet as each market has taken turns outperforming the other.

As we look at the historical data, we find that there is a range in which the price disparities are so strong that they are too great to be accounted for by the fundamental economic conditions underlying each market.  Every time prices get into these danger zones it has meant that the prices in one market or the other have gone too high, and that they are in imminent danger of falling.

We label this new tool the Sound Advice  “Risk Indicator,” since it will allow us to locate the point at which prices are so high when compared to competing markets that they have come loose from their moorings and are on the verge of declining or under performing the other market.

What is too high? When stock prices are very high relative to house prices, the Sound Advice Risk Indicator will rise over the line marked 2.0, revealing a high-risk   “Cardiff’s equation reveals an elegant financial minuet as time for stocks.  In contrast, when the indicator drops below the line marked 1.0, it means each market takes turns outperforming the other.” that it is a very low-risk time to buy stocks. Notice from the chart how the Sound Advice Risk Indicator has oscillated back and forth, revealing the ongoing struggle between stocks and houses for investment capital.  We have labeled these long vacillations Supercycles.

 

Business Cycles and Stocks: The Sound Advice Diffusion Indexes


If supercycles identified by our Risk Indicator are the solemn, inexorable seasons that roll across the market’s landscape, then business cycles are the highly visible, sometimes serene but frequently blustery fronts and storms that we actually perceive as weather. The Risk Indicator has given us a reliable tool to determine the investment season in the stock market. This information is all-important; there will be no heat waves in January, no blizzards in July. But in our search for fair winds, we need to know more than the season. We also must be able to predict the shorter-term weather -- the business cycles that cause bull and bear markets that fluctuate along the path of Supercycles.

We rely on the Sound Advice Diffusion Indexes because they have an amazing accuracy as predictors of the birth of bull and bear markets. During each “Aggressive” signal, the S&P 500 climbed an average of 31.5 percent. During “Caution” signals, the S&P 500 either crashed,  meandered, or climbed, recording an average decrease of 0.6 percent. 

Current Status 

Our current “Aggressive” mode was established by a zero reading for the Diffusion Index of LEADING Indicators in December 2022 based on the indicators for November 2022.

Our next signal will be a “Caution” signal from a 100 percent reading on the Diffusion Index of LAGGING Indicators. The latest reading is for March 2026 from data released in late April, which recorded 33.3 percent.

Signal Dates (Month-Year)
Aggressive S&P 500 Caution S&P 500
Sep-74 68.12 Apr-76 101.9
Jul-76 104.20 Dec-76 104.7
Oct-78 100.58 Jun-79 101.7
Nov-79 100.00 Oct-83 167.7
Aug-84 164.48 Jun-85 188.9
Jul-86 240.18 Aug-87 329.4
Feb-88 258.13 Jun-88 270.7
Mar-89 280.00 Mar-93 449.7
Mar-95 493.15 Dec-98 1,141.0
Jun-00 1,429.40 Dec-00 1,320.3
Jun-03 974.50 May-05 1,191.5
Jun-06 1,276.66 Mar-08 1,325.4
Dec-08 (1) 865.58 Apr 10 (2) 1,197.3
Sep 10 (3) 1,122.08 Jun 12 (4) 1,359.8
Sep-12 (5) 1,437.82 Nov 14 (6) 2,044.6
Mar-15 2,079.99 May-15 2,111.9
Sep-17 2,492.84 Feb-18 2,705.2
Mar-20 (7) 2,761.98 Nov 21 (8) 4,667.4
Dec-22 3,912.38    
Ave +/- 31.5%   -0.6%

Quantitative Easing (QE) Overriding Signals

(1) QE-1 announced 4 months before Aggressive mode

(2) QE-1 terminated into existing Caution signal

(3) QE-2 announced but already in Aggressive mode

(4) QE-2 terminated into existing Caution signal

(5) QE-3 announced, changed to Aggressive mode

(6) QE-3 terminated into existing Caution signal

(7) QE-4 announced, changed to Aggressive mode

(8) QE-4 terminated into existing Caution signal

Explanation and Reasoning

To construct our Sound Advice Diffusion Indexes, we observe changes over a five-month period in each of our selected leading and lagging economic indicators. Substantial changes lead to shifts in interest rates.  

When the Sound Advice Diffusion Index of LEADING Indicators drops to zero, we get an “Aggressive” signal. This happens when all three the leading economic indicators decline compared to five months earlier. This is not just an empirical coincidence. It is also logical. A zero reading reveals that a soft economy is providing an atmosphere for declining short-term interest rates

The Sound Advice Diffusion Index of LAGGING Indicators gives “Caution” signals when all three of its individual lagging economic indicators rise above their respective levels of six months earlier, providing a 100 percent reading. This reading reveals that the US economy is strong enough to put upward pressures on interest rates.

A Powerful Overriding Force

Most of the time, the Diffusion Indexes are excellent detectors of the natural business cycle and a path to the science of making money in the stock market. However, the forces of the natural business cycle can be dominated by extraordinary changes in monetary policy during emergency situations. 

The COVID-19 pandemic was the most recent example. In mid-March 2020, the Federal Reserve declared the institution of its fourth “Quantitative Easing” (QE) program whereby it dropped the Federal Funds rate to zero and commenced buying massing amounts of US Treasury bonds. With its mighty power, the Fed drove down interest rates and infused massive amounts of liquidity into the US economy. The money supply mushroomed. 

At times like this, we need to ignore readings from the Diffusion Indexes. Interest rates are dropping by the Federal Reserve’s mandate, just as if the Diffusion Index of Leading Indicators had plunged to zero. Conversely, whenever the Federal Reserve declares an end to its QE program, we return to our Diffusion Indexes to follow their readings. If the Diffusion Index has moved to a “Caution” signal during the QE program, we should follow that reading. This is the most likely pattern of events because the economy will likely have strengthened in order for the Federal Reserve to end it.

 

The Science of Making Money in the Stock Market book cover

The 2026 Edition:

The Science of Making Money in the Stock Market

By Gray Emerson Cardiff

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This book that explains all of the SoundAdvice indicators, including the Diffusion Indexes and Risk Indicator, and exactly how they work, along with a detailed history to back up the track records.

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