A Trend Model update: Still cautious

My Trend Asset Allocation Model is a market timing model that has been running since 2013. While the model only issues buy, hold and sell signals for stocks, investors nevertheless need to make their own decisions on how much to buy and sell. Based on my out-of-sample signals, I created a model portfolio by varying the equity weight by 20% around a 60% SPY and 40% IEF benchmark. The turnover characteristics of the model portfolio is manageable, averaging 3.5 signals per year in the last five years.

 

The risk-adjusted returns of the model portfolio are strong. The model has beaten the 60/40 benchmark on 1, 2, 3 and 5-year time horizons, as well from inception for the period from December 31, 2013 to April 29, 2025. In addition, it was able to achieve these returns with controlled risk, equivalent to roughly an 85/15 stock/bond asset mix with 60/40 risk. As the dotted line in the chart depicting relative performance shows, the model mainly reached the superior risk-adjusted returns by sidestepping the really ugly bear markets over the study period.

  • 1 year: Model 9.5% vs. 60/40 8.7%
  • 2 years: Model 13.3% vs. 60/40 11.4%
  • 3 years: Model 9.6% vs. 60/40 7.7%
  • 5 years: Model 10.9% vs. 60/40 9.0%

 

 

Here is what it’s saying now.
 

 

Trend Asset Allocation Explained

The philosophy of trend-following investing is simple. Use a long-dated moving average to establish the trend and a short-dated moving average for risk control. These classes of models tend to identify macro-economic trends which are persistent. Applied properly and with the proper risk controls, an investor using such an approach should be able to achieve superior returns.

 

The Trend Asset Allocation Model is based on the application of trend-following principles to global stock markets and commodity prices. I use it to monitor the main three trade blocs, the U.S., Europe and Asia, which is mainly China, to arrive at an overall risk-on, neutral or risk-off signal for asset markets.
With that preface, let’s take a quick tour around the world to see what the model is telling us now.
 

 

A Tour Around the World

Starting in the U.S., the S&P 500 is recovering after a downdraft. It is testing the 50 dma from below and remains under the 200 dma.

 

Technically, the recovery above the 50 dma would be a sign of a trend change. However, trend-following models suffer from an implementation feature of possible whipsaw signals around a moving average. In practice, I would like to wait for confirmation before making a formal change of signal.
Rank the U.S. as neutral to negative based on the speed of the recovery. If prices were to stabilize at these levels, it would be raised to a neutral reading.
 

 

Across the Atlantic, European stocks are exhibiting a similar pattern of pullback and recovery (all indices are shown in local currency). While European trends paralleled U.S. ones, the magnitude of the decline was less. Rank Europe as neutral.
 

 

It’s a different story in Asia. I tend to discount the Chinese stock market as it doesn’t reflect the Chinese economy. I instead rely on the behaviour of other Asian markets as signals of the Asian trade bloc. Most Asian markets are trading below their 50 dma. Call this a negative.
 

 

As China is a voracious consumer of commodities, commodity price signals are important indicators of the health of the Chinese economy and the global economic cycle. Global commodity prices are weak. In particular, the cyclically sensitive copper/gold and the more broadly diversified base metals/gold ratios are not showing any signs of life.
 

 

In conclusion, my quick tour around the world shows that the main components of my trend-following models are either weak or neutral. Putting it all together, this calls for a risk-off defensive posture to portfolio construction.

 

The combination of a weakening G10 Economic Surprise Index, which measures whether economic releases are beating or missing expectations…

 

 …and expectations of an escalating trade war is not conducive to strong equity returns.

 

 

A ZBT buy signal update

Mid-week market update: Today’s market action has a constructive quality to it. The S&P 500 managed to stage an upside breakout through 5500 resistance and fill the price gap just above that level. The latest development saw the index pulled back to succesfully test the 5500 resistance turned support

 

 

 

It’s normal to see the market consolidate its gains after a ZBT. Here’s an update.

 

 

A ZBT Re-examination

I voiced my discomfort of the ZBT buy signal on the weekend. I am keeping an open mind but I remain highly concerned. RecessionAlert argued that there was no ZBT buy signal if investors use the NYSE common stock only advance-decline data, instead of the all issue data, which contains debt and closed-end funds. The use of common stock only data is more consistent with Marty Zweig’s idea of the breadth thrust of common stocks.

 

 

Arun Chopra went further and analyzed all ZBT buy signals since World War II. Here are the S&P 500 patterns for 2011-2025.

 

 

Here is 2004-2013.

 

 

Here are the rest, going back to World War II.

 

 

Here are my main takeaways from reading these charts. Most ZBT buy signals occurred against a period of wildly choppy market action, followed by the ZBT buy signal that was usually the final low. The period of choppy action hasn’t preceded the latest signal, which argues for a re-test of the previous low in the near future.

 

There are no guarantees in life or investing, re-tests of lows are not always successful. What is different this time is the lack of fiscal or monetary support for stock prices. The Republican controlled Congress is struggling to pass a tax package that’s meaningfully stimulative without blowing up the deficit. The Fed is in wait and see mode in the face of rising prices from the imposition of tariffs and it’s unlikely to cut rates in the near future.

 

 

Recession Risk rising

In the meantime, recession anxiety is rising.  The odds of a recession has risen to 66% at the Polymarket betting market. Remember – recessions are bull market killers.

 

 

The WSJ reported that JPM CEO Jamie Dimon said that a mild recession was his best case scenario:

 

Trade negotiations were top of mind at the International Monetary Fund meetings in Washington last week. In a closed-door talk hosted by JPMorgan Chase in front of over 500 investors, Treasury Secretary Scott Bessent said that he expects negotiations with China will take between two to three years and that the goal wasn’t to decouple the two economies, people who attended the talk said.JPMorgan CEO Jamie Dimon addressed the crowd afterward, and said he believes the best case outcome from the trade war would be a mild recession for the U.S. economy.
In closing, I offer the following market analogs from Nautilus Research for the S&P 500. While the use of market templates for future performance isn’t my favoured form of analysis, the patterns cannot be entirely ignored. Bearish outcomes outnumber bullish ones. Pick your poison.

 

 

 

4 reasons to be cautious about the ZBT buy signal

Preface: Explaining our market timing models

We maintain several market timing models, each with differing time horizons. The “Ultimate Market Timing Model” is a long-term market timing model based on the research outlined in our post, Building the ultimate market timing model. This model tends to generate only a handful of signals each decade.

 

The Trend Asset Allocation Model is an asset allocation model that applies trend-following principles based on the inputs of global stock and commodity prices. This model has a shorter time horizon and tends to turn over about 4-6 times a year. The performance and full details of a model portfolio based on the out-of-sample signals of the Trend Model can be found here.

 

 

My inner trader uses a trading model, which is a blend of price momentum (is the Trend Model becoming more bullish, or bearish?) and overbought/oversold extremes (don’t buy if the trend is overbought, and vice versa). Subscribers receive real-time alerts of model changes, and a hypothetical trading record of the email alerts is updated weekly here. The hypothetical trading record of the trading model of the real-time alerts that began in March 2016 is shown below.
 

 

The latest signals of each model are as follows:
  • Ultimate market timing model: Buy equities (Last changed from “sell” on 28-Jul-2023)
  • Trend Model signal: Bearish (Last changed from “neutral” on 11-Apr-2025)
  • Trading model: Neutral (Last changed from “bullish” on 14-Apr-2025)

Update schedule: I generally update model readings on my site on weekends. I am also on X/Twitter at @humblestudent and on BlueSky at @humblestudent.bsky.social. Subscribers receive real-time alerts of trading model changes, and a hypothetical trading record of those email alerts is shown here.
 

Subscribers can access the latest signal in real time here.

 

 

A ZBT Buy Signal

I have recently seen a number of buy signals triggered with strong historical long-term returns. The latest is the Zweig Breadth Thrust. The technique was first detailed in Marty Zweig’s book, Winning on Wall Street, first published in 1986. It’s a rare signal that was triggered only eight times since the book’s publication.

 

The signal required the market to exhibit strong price momentum. The Zweig Breadth Thrust Indicator needed to recover from an oversold to overbought condition within 10 trading days. The signal has had a 100% positivity rate on a 6- and 12-month horizon. The market fizzled over short-term horizons on three instances when the Fed was raising rates, which is not the backdrop today. That said, Tom McClellan published a study of ZBT signals going back to the 1920s and found that the results ended to be hit-and-miss.

 

 

The ZBT buy signal triggered late last week. Notwithstanding the stellar historical record of this indicator, I am struggling with the long-term equity bull case and I have four reasons to be cautious.
 

 

High Volatility = Bear Market

The market is exhibiting a series of high-volatility events that have the fingerprints of a bear market.
 

 

The S&P 500 achieved the fourth-highest realized volatility in the last 75 years. Whether the price volatility is to the upside or downside, such conditions are not signals of a healthy bull.
 

 

Even though the VIX Index has fallen below 30, which is a sign of normalization, the term structure of the VIX is still inverted, which indicates elevated levels of market anxiety.
 

 

 

High Uncertainty

Arguably, the ZBT buy signal could be a sign of an all-clear. Market conditions and psychology have deteriorated so much that they have nowhere to go but up. But I struggle with that thesis as uncertainty remains extremely elevated and I see few signs of relief for macro and fundamental conditions on the horizon.

 

Intermediate market bottoms occur when the conditions that sparked the fear are relieved, such as Mario Draghi’s “whatever it takes moment” to save the euro, but I struggle to see how the market resolves the uncertainty arising from Trump’s tariffs and efforts to dismantle Pax Americana, or the security and financial umbrella that underpins global world order since the end of World War II. To be sure, relief rallies can occur as trade discussions progress, but the expectation of 90 trade deals in 90 days is highly unrealistic.

 

The latest Fed Beige Book contained 80 references to the word “uncertainty”. Not only is the figure an all-time high, the scale had to be doubled from the previous print of 45 in March. As a reminder, uncertainty in the business environment retards capital spending and hiring plans, which leads to slower growth.

 

The Financial Times reported that companies mentioned “tariffs” on over 90% of S&P 500 earnings calls so far this earnings season. The term “recession” was mentioned on 44% of calls, compared with less than 3% on those covering Q4 2024.
 

 

As a reminder, uncertainty in the business environment retards capital spending and hiring plans, which leads to slower growth.
 

In the meantime, earnings estimates are weakening as Q1 earnings season progresses. Amidst all of the uncertainty, some companies have responded by withdrawing guidance. These figures are troubling inasmuch as forward P/E valuations are elevated.
 

 

In the past, market crises such as the 1987 stock market crash, LTCM blowup, GFC and COVID Crash were met with a fiscal or monetary response, or both. This time, the crisis was inflicted by policy and the prospect of the deployment a fiscal or monetary safety net is slim.

 

Instead, the U.S. federal government is setting up a pro-cyclical response by weakening the social safety net ahead of a probable growth scare and possible recession. Former Fed economist Claudia Sahm highlighted a passage from the Kansas City Fed from the Beige Book:

Funding cuts from the USDA were highlighted as particularly impactful regarding services for seniors. Specifically, one pantry reported cutting back the amount of food they can give from three to five days of shelf stable food to two days of food every 30 days due to funding cuts. Pantries also expressed heightened funding uncertainty across government, corporations, and individuals and uncertainty about food price pressures.

In the end, stock prices depend on the earnings outlook and its P/E multiple. The best-case scenario I can envisage is a rollback of tariffs to a uniform rate of 5% to 10% above levels before “Liberation Day”. Supply chain disruptions and elevated tariffs causes a growth slowdown, but no recession. The Fed response by cutting rates in Q3 or Q4. Congress passes a package tax and spending cuts that’s at best fiscally neutral. S&P 500 forward earnings stay relatively stable, but the forward P/E compresses from 19.8 today to about 16 because of uncertainty, which translates to a downside potential of -15% to -20%.

 

 

Hard and Soft Data Convergence

Investors have been puzzled recently by the divergence in the weakness of the soft sentiment data and the resilience of the hard activity data. The divergence can be partly explained by the anticipation of weakness, or at least uncertainty, that’s reflected in the survey data, and front-running tariff spending that pulls purchases ahead from future months in the hard activity data.
 

 

The soft and hard data is about to converge. Molson Hart explained in a recent Twitter/X post of how supply chain bottlenecks are about to appear:

Around April 10th China to USA trade shut down. It takes ~30 days for containers to go from China to LA. 45 to Houston by sea, 45 to Chicago by train. 55 to New York by sea. That means that there are no economic effects of what was done on April 10th until about May 10th.

 

Around that time (it’s already started to happen) trucking work is going to dry up. Warehouses will start doing layoffs because no labor is needed to unload containers and some products will be out of stock, reducing the need for shipping labor.

 

All this will start in the Los Angeles area. After about 2 weeks, it’ll start hitting Chicago and Houston. Already, shipping volumes from China to the U.S. are collapsing. The wheels are already set into motion.

 

The public will start to see COVID-style supply shortages in the May–June time frame all over the U.S.

 

 

None of these problems can be magically wiped away by the promise of trade negotiations, which China has denied are under way, or even a trade deal, which will take months to negotiate.
 

It’s therefore no surprise that my Trump factors are all rising, indicating high risk levels. The trade war factor has been in a steady uptrend. Inflation expectations have staged an upside breakout but pulled back below to test the breakout level. The relative performance of foreign sovereign bonds to 7–10-year Treasuries have also broken out, indicating a loss of confidence in the USD and Treasuries as safe-haven assets.
 

 

 

Sell in May?

Here’s another historical study to consider. Wayne Whaley observed that a negative stock market performance in April, which currently stands at -1.5%, tends to resolve in subpar returns for the rest of the year.
 

 

This leads to the conditional study of “sell in May” conducted by Callum Thomas of Topdown Charts. He found that while the adage “sell in May and go away” had limited utility, it’s far more useful during bear markets.
 

 

What about the bullish implications of the Zweig Breadth Thrust? I attribute the buying stampede to a short-covering and beta-chasing rally by hedge funds, which were stopped out of their equity positions in the recent risk-off episode as they normalized their positions.

 

By contrast, positioning surveys of retail investors show that they have been buying the dip, which is contrary to the conclusion of opinion surveys like AAII, which shows extreme levels of bearishness. Capitulation bottoms don’t look like this.
 

 

There is also more negative news from a fund flows and positioning perspective. Harvard and Yale universities have announced that they are liquidating portions of their private equity portfolios in order to fund their operations. The forced sale of illiquid assets will undoubtedly depress private equity valuations and possibly put downward pressure on public equity markets. The most likely effect would be seen in small-cap stocks, which have already been lagging the S&P 500 since late 2024.
 

 

In conclusion, last week’s Zweig Breadth Thrust buy signal gave investors reasons to be bullish on stocks, but I beg to differ. Uncertainty remains high and I struggle to outline a clear intermediate-term bull case for stocks. Moreover, hard activity-based data is poised to converge toward the soft weak survey-based data in the coming weeks, which has not been fully discounted by the market. This is a bear market and investors should adopt a position of maximum caution.

 

An American Emerging Market crisis?

Something unusual happened recently. During risk-off episodes, U.S. economic pain has been cushioned by falling bond yields and an appreciating USD, which translates into lower interest rates and more consumer spending power.

 

The risk-off episode that began in early April, which was just after the “Liberation Day” tariff announcements, saw the opposite. The price of the 10-year Treasury note fell more when denominated in all major currencies except the Chinese yuan. Foreigners were fleeing USD assets and Treasury paper, meaning the pain was amplified.
 

 

Had the panic not been stemmed, it was starting to look like a classic emerging market crisis.

 

 

Foreigners Are Selling

Various explanations had been advanced for the unusual episode, such as a blow-up in the basis trade, which is a highly levered arbitrage strategy between the cash Treasury bond and the futures market, and Chinese selling. Neither proved to be satisfactory.

 

It seemed that foreigners were losing confidence in the USD and Treasury assets as a safe-haven.

 

We have evidence of this shift from Japanese data. The Financial Times cited data showing that Japanese investors were net sellers of $17.5 billion in foreign fixed-income securities from March 30 to April 5, with a “substantial portion” being U.S. Treasury and Agency paper, as per one rates strategist.
 

The same week, Japanese investors were buying foreign equities and funds. In other words, they were dumping foreign bonds and buying foreign stocks.
 

 

What equity market did the funds go? It wasn’t into the U.S. The latest BoA Global Fund Manager Survey showed a stampede out of U.S. equities.
 

 

The data shows that Japanese investors were large sellers of foreign long-dated debt, which was mostly USD paper, and accumulating large foreign equities. In effect, they were shorting the USD by taking on USD-denominated liabilities while acquiring non-U.S. equity assets.
 

It was the U.S. capital flight trade. U.S. stocks, bonds and the USD weakened, while gold rallied to an all-time high. The pattern is new to the U.S. but familiar in emerging markets that are becoming submerging markets. The WSJ succinctly summarized the panic with the headline “Dow Headed for Worst April Since 1932 as Investors Send ‘No Confidence’ Signal”.

 

The damage can be seen in factor returns. Even as the S&P 500 skidded, the trade war factor has been in a steady uptrend. Inflation expectations recently staged an upside breakout but pulled back, which combined with the strength in the trade war factor is a stagflation signal. The relative performance of non-USD sovereign bonds to the 7–10-year Treasury ETF is a sign of a loss of confidence in the USD.
 

 

 

A Stampede into Gold

The rush out of the USD can be seen in the surge in gold prices, which reached all-time highs in all major currencies, including the Swiss franc, which is regarded as a “hard currency”.
 

 

Most notably, China has been accumulating gold in its reserves.
 

 

 

The Fever Breaks

I have been bullish on gold (see 2025 High Conviction Idea: Gold), but the latest buying frenzy seems to be too much and too fast. If we use gold as a real-time proxy for USD sentiment, a reversal was overdue.
From a sentiment perspective, investors finally caught on to the strength in the shiny metal and fund flows have gone parabolic.
 

 

Gold prices are highly extended from a technical perspective and due for a pullback.
 

 

The reversal occurred last week when the gold ETF traced out a bearish outside reversal on high volume, which is a signal of a downside reversal.
 

 

The fever has broken, and if the inverse relationship between gold and the USD continues, the USD panic is over in the short run. The pullback in gold isn’t surprising, as we are approaching a period of negative seasonality. From a technical perspective, it’s perfectly reasonable to expect some sideways consolidation in the coming weeks before prices resume their bull trend.
 

 

 

The Prognosis

What’s the longer-term prognosis for the USD?

 

Fears of an emerging market balance of payment crisis for the USD are overblown. While the recent panic is reminiscent of EM BoP crises, there are some important differences. A typical EM BoP crisis occurs when much of the borrowing is in foreign currency. A loss of confidence leads to a bank run on that country’s foreign currency reserves, which forces up yields to incentivize capital to stay in that country. But U.S. debt is denominated in USD, and the U.S. has an unlimited printing press to print currency.

 

For now, the USD remains the premier medium of exchange in international trade and there are few candidates that can replace its role as a global reserve currency. Other major currencies with sufficient liquidity are flawed in different ways. The euro is highly liquid, but the eurozone runs a current account surplus, which means that there isn’t enough euro-denominated paper sloshing around the global financial system for reserve managers to hold as the pre-eminent reserve currency. Similarly, China runs an enormous currency account surplus and suffers from the same liquidity problem. Gold bugs like to mention the metal, but liquidity is a severe constraint. If the U.S., which is one of the largest holders of gold in its official reserves, were to monetize its gold holdings at market values, it would amount to about US$900 billion, which isn’t enough to finance a single year’s fiscal deficit.
 

 

That said, much of the future trajectory of the USD and global economy depends on the U.S. appetite for currency depreciation and its trade war. Should foreigners lose confidence in USD assets, the Fed could step in and become the bond buyer of last resort. Such a policy would have two important implications. First, a falling USD translates into higher inflation as import prices rise. As well, Fed intervention would likely resolve in a steeper yield curve as short rates fall from Fed intervention while long rates rise as investors demand a higher premium for holding long-dated paper.

 

When combined with Trump’s high tariff rates, which puts upward pressure on domestic prices, and a potential loss of confidence in the USD, stagflation and a recession are highly likely outcomes.

 

Despite all the flip flops and announcements, the effective weighted average tariff rate is still very high by historical standards. Supply chain bottlenecks will start to appear by the summer months and lead to severe disruptions in both economic activity and employment. Axios reported that the CEOs of the three biggest retailers — Walmart, Target and Home Depot — warned Trump about the consequences of his actions: “The big box CEOs flat out told him [Trump] the prices aren’t going up, they’re steady right now, but they will go up. And this wasn’t about food. But he was told that shelves will be empty.”

 

 

Torston Slok at Apollo pointed out that it takes an average of 18 months to hammer out a trade agreement because of the complex issues involved. Trump’s timeline of agreements with 90 countries in 90 days is simply unrealistic and prone to disappointment. Slok stated in an CNBC interview that in the absence of a change in policy, the probability of a recession is 90%.
 

 

Treasury Sectary Bessent told a closed-door meeting of investors that the China tariff stand-off was unsustainable and both sides needed to de-escalate. The WSJ reported last week that Trump is considering halving the tariffs on China to de-escalate the trade0 war. While the markets welcomed this news with a relief rally, it nevertheless puts the U.S. in a worse negotiating position. It’s still burdened with a historically high effective tariff rate, reduced negotiating leverage, along with the prospect of stagflation and escalating inflationary expectations.

 

Putting it all together, confidence in the USD and Treasury assets is being eroded. As well, the U.S. faces stagflation and elevated recession risk in the next 12–18 months. While investors usually hedge slow growth outcomes by holding USD and Treasuries, they would be better served by holding high-quality non-USD sovereign bonds and gold.