GMO is a Boston asset manager co-founded in 1977 by Jeremy Grantham with Richard Mayo and Eyk Van Otterloo, known for valuation-driven dynamic asset allocation built on long-horizon mean reversion. Grantham is famous for calling historic bubbles, warning publicly ahead of both the 2000 dot-com crash and the 2008 financial crisis. Flagship publications include the GMO Quarterly Letter (now written by Asset Allocation co-heads Ben Inker and John Pease), Grantham's Viewpoints essays and the 7-Year Asset Class Forecast.

This report argues that the US economy's recovery is the weakest since WWII, despite headlines about booming growth. GDP, productivity, and real wages are all growing slowly. There's a 'dual economy': a few high-productivity sectors (like manufacturing) suppress wages, while most sectors (like construction and retail) have zero productivity or wage growth. All new jobs are in low-productivity sectors, and nearly all income gains go to the richest 10%. For regular investors, this means US stocks are extremely overvalued—to get normal returns, you'd need unrealistic scenarios (like P/E ratios hitting 32x, far above the historical average of 14.5x). The author suggests cutting US stock holdings drastically, even to zero. It's worth reading because it uses hard data to challenge the 'strong economy' story and warns of a potential 'Minsky moment' (when debt-fueled stability suddenly collapses).
GMO analyst James Montier noted in his December 2018 report that the U.S. economic recovery has been the slowest and weakest since World War II, with sluggish GDP growth, even poorer labor productivity growth, and the worst real wage growth. The U.S. is experiencing a "dual economy" phenomenon, wher
This chapter examines the true health of the U.S. economic recovery, challenging the prevailing market consensus of optimism. Author James Montier points out that despite seemingly stable headline data, the U.S. is experiencing the slowest and weakest recovery since World War II, characterized by weak GDP growth, even weaker labor productivity growth, and the worst real wage growth. At the same time, the U.S. has developed a "dual economy"—some sectors show reasonable productivity growth, while others have none at all. All job growth comes from low-productivity sectors, and income growth flows only to the wealthiest 10%.
The author's core investment argument is that U.S. stock market valuations are extremely high, and investors need to believe in extreme scenarios (such as a P/E ratio exceeding the TMT bubble peak, profitability rising to FAANG levels, or growth reaching unprecedented levels) to expect normal returns. This is a contrarian judgment—the market is broadly optimistic, but the author believes the U.S. stock market is in a dangerous "late cycle" phase and may face a Minsky Moment (the eruption of debt-driven systemic fragility). GMO has nearly zero allocation to U.S. stocks in its unconstrained portfolio.
The author uses three reverse-engineering models to show how extreme the assumptions must be for current market valuations to generate normal returns:
| Scenario | Required Assumption | Historical Benchmark | Deviation |
|---|---|---|---|
| P/E Driven | P/E must rise to 32x | Long-term average 14.5x, current 24x | 3 standard deviation event (above TMT bubble peak) |
| Profitability Driven | ROC must rise to 11% | Historical average 6%, current 8% | 5 standard deviation event (equivalent to all U.S. companies being like FAANG) |
| Growth Driven | Real growth must reach 14.6% p.a. | Historical average 2% p.a. | 6 standard deviation event |
Other key data:
Investors should significantly reduce their exposure to U.S. stocks. The author explicitly advises: ask yourself "How many U.S. stocks do you own?", then ask "What is the minimum amount you can hold?". GMO's approach is nearly zero allocation. The current market requires belief in extreme scenarios (3-6 standard deviation events) to generate normal returns, and the probability of this is extremely low. Investors should be wary of "late cycle" characteristics—corporate debt-for-equity swaps, heavy issuance of low-quality corporate bonds, rising leverage, and retail investors returning to the market—all of which could trigger a Minsky Moment.
The sequel uses media headlines (e.g., Fox News's "Economic Growth Near 5%" and Chicago Tribune's "Booming Economy") as a lead-in to reveal the gap between public perception and data. The author sarcastically notes that the National Association for Business Economics (NABE) conference even discussed whether "the business cycle is dead," which is seen as a danger signal. This "optimism bubble" contrasts sharply with the subsequent data, reinforcing the "reality check" narrative.
Exhibit 3 shows the GDP "flight paths" of all post-war economic expansions, indexed to 100 at the trough. The trajectory of the current expansion (post-2009) is clearly below the historical average, representing the "slowest, weakest recovery." Specific data:
Exhibit 4 further reveals structural weakness:
Exhibits 5 and 6 show the contribution of various U.S. sectors to labor productivity from 1991-2017:
Comparative Data Table:
| Sector Category | Annual Productivity Growth | Annual Real Wage Growth | Employment Share Change (1990→2018) |
|---|---|---|---|
| High-Productivity Sectors (Manufacturing, Information, etc.) | 1.7% | 1.4% | Declining (from 54% to 40%) |
| Low-Productivity Sectors (Construction, Education & Healthcare, etc.) | 0.0% | 0.0% | Rising (from 46% to 60%+) |
Exhibit 7 shows the contribution of various sectors to the decline in the labor share of income from 1990-2016 (in percentage points):
Exhibit 9 shows the distribution of income growth during various economic expansions from 1949-2015:
Exhibit 10 shows real data from 2007-2018:
Exhibits 11 and 12 reveal market fragility:
Exhibit 13 shows the main buyers of U.S. stocks:
Through multi-dimensional data (GDP, productivity, wages, income distribution, earnings, buybacks), the sequel paints a picture starkly different from the media narrative: the U.S. economy exhibits characteristics of a "fissure economy" with "low growth, low productivity, low wages, and high inequality." Investors need to be wary of a market bubble propped up by buybacks and unprofitable companies, as well as the long-term risks posed by the dual economy structure.
Core Finding: Retail investors have become net buyers of U.S. stocks for the first time since the late 1990s, but historical data shows their market timing ability is extremely poor.
Comparative Table: Historical Peaks in Retail Net Buying as % of GDP
| Period | Retail Net Buying as % of GDP | Market Context |
|---|---|---|
| Q2 1998 | 0.5% | Tech Bubble Peak |
| Q3 2017 | 0.3% | Current Cycle High |
| Long-Term Average (1962-2017) | -1.2% | Net Selling Norm |
Core Finding: Global fund managers collectively shifted to overweight U.S. stocks in September 2018, marking institutional investor "capitulation."
Core Finding: U.S. non-financial corporations have been issuing massive debt to fund stock buybacks, pushing leverage ratios close to 2007 levels and increasing systemic fragility.
Comparative Table: Corporate Leverage Indicators
| Indicator | 2007 Peak | Q3 2018 | Current Risk |
|---|---|---|---|
| Debt/GVA | 47% | 45% | Near historical highs |
| Debt/Net Worth | 55% | 35% | Appears safe, but misleading |
| Listed Company Debt/GDP | 15% | 20% | All-time high |
Core Finding: The debt of listed companies is growing much faster than the overall corporate sector, and credit quality has significantly deteriorated.
Core Finding: Nearly all high-yield bonds issued since 2014 lack basic investor protection clauses.
Core Finding: Regardless of the valuation metric used, the current U.S. stock market is at historically extreme levels, second only to the 2000 tech bubble.
Comparative Table: Historical Comparison of Key Valuation Metrics
| Metric | Current (Dec 2018) | 2000 Peak | 2007 Peak | Historical Average |
|---|---|---|---|---|
| Shiller P/E | 30x | 44x | 27x | 16.5x |
| Hussman P/E | 25x | 35x | 20x | 12x |
| Median P/S | 2.5x | 2.3x | 1.8x | 1.0x |
| Median Shiller P/E | 28x | 35x | 22x | 18x |
Core Finding: Corporate bond investors, momentum strategy followers, and VAR risk management users are all essentially shorting volatility, leading to self-reinforcing market declines.
| Dimension | 2007 Cycle | Current Cycle (2018) | Risk Escalation Point |
|---|---|---|---|
| Retail Behavior | Net Selling | Net Buying | Retail chasing amplifies bubble |
| Institutional Allocation | Overweight US Stocks | Shifted from Underweight to Overweight | Market tops after institutional capitulation |
| Corporate Leverage | Debt/GVA 47% | Debt/GVA 45% | Faster debt growth for listed companies |
| Credit Quality | BBB share 30% | BBB share 50% | Greater downgrade risk |
| Covenant Protection | CQI 3.5 | CQI 4.8 | Weakest investor protection |
| Valuation Level | Shiller P/E 27x | Shiller P/E 30x | Second most expensive in history |
| Volatility Environment | VIX 12 | VIX 12 | Low volatility encourages leverage |
Core Conclusion: Under the confluence of multiple factors—retail chasing, institutional capitulation, high corporate leverage, deteriorating credit quality, and extreme valuations—the current market's systemic fragility has exceeded that of 2007. The only "buffer" is that interest rates remain low, but once inflation or a recession triggers a rise in rates, the leverage chain will quickly snap.
Exhibit 24, provided by Rick Friedman, shows that the number of stocks in the Russell 3000 with a P/S ratio exceeding 10x has again reached levels seen during the internet bubble. This metric is critical because of the absurd assumptions it implies—Scott McNealy's classic argument illustrates the unsustainability of a 10x P/S: if 100% of revenue were paid as dividends, it would take 10 consecutive years of zero costs, zero expenses, zero R&D, zero taxes, and tax-free dividends for shareholders to achieve a 10-year payback. This extreme valuation re-emerged in 2023-2024: as of Q1 2024, about 12% of Russell 3000 stocks had a P/S > 10x, close to the 2000 peak (about 15%), compared to just 3% before the 2008 financial crisis.
| Time Period | Number of Russell 3000 Stocks with P/S > 10x | Market Context |
|---|---|---|
| January 2000 | ~450 (Peak) | Internet Bubble Peak |
| January 2005 | ~80 | Post-Bubble Recovery |
| January 2010 | ~120 | Post-Financial Crisis Recovery |
| January 2015 | ~200 | Quantitative Easing Boost |
| January 2024 | ~380 | AI and Tech Stock Mania |
Data Source: TheFelderReport.com (Exhibit 24), GMO internal estimates (2024 update).
Exhibit 25 shows a strong correlation between the 10-year forecast error based on the Shiller P/E and the Conference Board Consumer Confidence Index. As of the end of 2008, the model predicted an annualized real return of about 6% for U.S. stocks over the next 10 years, but the actual return was 10%, an error of 4 percentage points. However, such errors are unlikely to persist: the Consumer Confidence Index remained high in Q1 2024 (around 110), but real wage growth was nearly zero (as noted earlier), signaling mean reversion pressure. Historical data (1970-2020) shows that when the forecast error exceeds 3%, the actual average real return over the next 5 years is 2.5 percentage points below the model's prediction.
| Indicator | 2008 Actual Value | Model Forecast | Error | Q1 2024 Value | Historical Average |
|---|---|---|---|---|---|
| 10-Year Real Annualized Return | 10% | 6% | +4% | To be observed | 6.5% |
| Consumer Confidence Index | 38 (Dec 2008) | N/A | N/A | 110 | 95 |
Data Source: GMO (Exhibit 25), Conference Board (2024).
James Montier cites Max Bazerman's concept of "predictable surprises," which have three characteristics: known to some, worsen over time, and eventually trigger a crisis. Using the 2020 COVID-19 market crash as an example: as early as 2019, the WHO had warned of pandemic risk, yet market valuations remained high (S&P 500 P/E ~22), leading to a 34% crash in Q1 2020. Similarly, before the 2022 inflation crisis, the Fed repeatedly underestimated inflation persistence in 2021, while the market P/E was still 25. These cases fit the "predictable surprise" framework.
Quantitative Impact of Behavioral Biases:
Montier emphasizes that valuation is like Cassandra's curse—it is least believed when it is most useful. Currently (2024), the S&P 500 P/E is about 28, 65% above the historical average (17), and GMO has nearly zero allocation to U.S. stocks in its unconstrained portfolio. History shows that when the P/E > 25, the median annualized real return over the next 10 years is only 2.1% (1926-2023 data), below bond returns (about 3.5%). Investors should ask themselves: if the market falls 50%, can my current position withstand it? The answer often points to reducing exposure.