Insight
Shahidi: A truly diversified portfolio must hold underperforming assets
“By definition, You should own things that are not doing well, because if they're all doing well at the same time, you're probably going to go through a period where they're all doing poorly at the same time.”
Insight
Shahidi: Climate change will directly impact corporate bottom lines
“Climate change could easily be one of those things and the risks associated with that. So I think we're starting to see asset allocators factor that in to their strategies. It's not just something to do because you feel good about it, but it's something that m…”
Prediction Open · timeframe Jul 2026
Grantham: Global warming will reach 3.0 to 3.5 degrees Celsius
“The truth is we are not going to contain the climate warming of one and a half degrees or two degrees, that we are struggling to determine where in the zone over three degrees centigrade we'll end up. My guess is between three and three and a half degrees cent…”
Prediction Not checkable as stated
Grantham: African migration to Europe will be society's primary political risk
“So I think it will be stress on those areas, and immigration, and the pressure on Europe of millions of Africans attempting to migrate will be the main political risk that we face, and a real threat to the well-being of society.”
Opinion
Grantham: Financial markets are in a unique bubble unlike any other
“I do think we're in a bubble, but I also think it's unlike any other bubble.”
Assertion Not checkable as stated
Grantham: PEs are in the top 5% while economy is bottom 5%
“We're in the highest five percent of PEs. And we're in the lowest five percent of economic conditions today. So there's never been anything like that in history.”
Assertion Supported
Grantham: U.S. debt multiplied since Greenspan while economic growth slowed
“We entered an era with Greenspan of a fairly decent kink in the cumulative debt curve. It had been drifting up very slowly, and then it started to rise very rapidly since his era. What you notice is that despite the fact that the debt ratio Per unit of GDP has…”
Insight
Grantham: High-PE markets face substantial declines once confidence breaks
“High PEs are an intrinsically nervous and risky situation where everything is confidence. If you break confidence for any reason, it could be uniquely different this time, It has been quite different in each of the bubbles, but if you break confidence and you'…”
Insight
Grantham: Timing bubble peaks requires tracking speculative behavior, not valuation
“If you're trying to time the breaking of a bubble, the value is not that important. All of them are overpriced, and whether they're overpriced at 25 times earnings or 35 times earnings or in Japan at 65 times earnings, it's very difficult to work out in any so…”
Disclosure
Grantham: Tesla is not worth four times its pre-COVID value
“I own a Tesla. It's a wonderful car. I think they're a spectacularly interesting company, but are they four times the company they were before COVID? I don't think so.”
Prediction Not checkable as stated
Grantham: The market bubble will likely break in weeks or months
“So I think this is an indicator, not a certainty, but a strong possibility that we are quite close to the bubble breaking in terms of psychology. Perhaps a matter of weeks or months, not years.”
Insight
Grantham: Diversified venture capital has stock-market-level risk with higher returns
“Venture capital, not surprisingly, has a higher return than the stock market because of the riskiness of each individual unit. But if you have a diversified portfolio, you have no more risk than the stock market, but you have a higher return.”
Prediction Not checkable as stated
Grantham: Electric vehicles, wind, and solar will overwhelm fossil fuels
“And the green VC part of it, which is springing out of the woodwork, is going to have a very high top line growth rate. Of course, electric cars are going to pound to death The growth rate of gasoline cars. Of course, wind and solar is going to overwhelm gas e…”
Assertion Supported
Grantham: China has 300,000 electric buses while the U.S. has 400
“They have 300,000 electric buses, and the U.S. Has 400.”
Insight
Grantham: Long-term investors must be prepared to fight the Fed
“Don't fight the Fed if you're a short-term player, but if you're a long-term player, you have to be prepared to fight the Fed on occasions.”
Assertion Supported
Grantham: Oil dropping to 2.5% of S&P is largest historic sector loss
“Oil as a percentage of the S&P had come down from 25% in 1982 and 16% in oh eight to two and a half percent yesterday. This is the biggest loss of value in the history of the major groups of the S&P that goes all the way back into the 20.”
Prediction Not checkable as stated
Grantham: Society will achieve an enormous green transition within 15 years
“You will come back in 10 or 15 years, and you will see that we have made an enormous transition to a green economy. We will win technologically.”
Prediction Not checkable as stated
Grantham: Future deficit spending will largely fund high-return green initiatives
“We will have deficit spending, which will be great, and a lot of it will be green, which will be even better, and very high return.”
Opinion
Grantham: Post-2008 reluctance toward deficit spending was a major mistake
“After the financial crash, we became too jittery about deficit spending, which is I think a big mistake, quite unnecessary.”
Assertion Supported
Grantham: Coal and diesel particulate matter kills millions annually in China
“No particulate matter, Which takes years off everybody's life and kills several million people a year in China from coal and so on and diesel.”
Prediction Not checkable as stated
Grantham: Markets will see a major reversal favoring value over growth
“We may not snap back the 120% I would have calculated 20 years ago, but we are going to have a very big reversal in favor of value stocks sooner or later. I think we can be pretty safe about that.”
Opinion
Grantham: Investors should own as few U.S. equities as possible
“I do recommend owning as few US equities as you can face.”
Assertion Contradicted
Grantham: Emerging market equities are at an unprecedented low relative valuation
“Emerging equities, emerging markets, are not only at an unprecedented low relative, but they are actually quite cheap, absolutely, compared to the US, and on their own.”
Assertion Contradicted
Grantham: China will drive over 30% of global growth over 20 years
“China, who is going to represent, according to the World Bank, over 30% of the entire world's growth over the next 20 years”
Disclosure
Grantham: GMO held Microsoft in value fund until exiting by June 2000
“Our claim to fame in our first quant funds is that we owned Microsoft in our value stream in the top decile of value from the day it appeared as a stock that met our size limit until late 99, when it finally got overpriced enough that it drifted into decile tw…”
Insight
Grantham: Ten-year theses are not sufficient to justify short sales
“Ten-year arguments are not enough to justify short sales.”
Insight
Grantham: Human optimism bias drives financial bubbles and climate denial
“It's our ability to focus on optimistic thoughts and avoid unpleasant ones. It really is. It's what enables us to have South Sea bubbles, tech bubbles. It's what enables us to ignore the downside of climate change until it bites us”
Prediction Not checkable as stated
Grantham: Developed markets face 1% to 1.25% GDP growth without green spending
“Without that, we continue on the flight path we've been on, I think one percent, maybe one and a quarter, is the kind of growth rate In GDP per capita that we're looking at for the next 20 years.”
Assertion Partly supported
Grantham: Real U.S. hourly wages have stagnated since the mid-1970s
“Workers, Which in the U.S. Have not had a real increase per hour work since the mid-nineteen seventies, can you believe, where even dopey Europe has more than doubled, and China and Vietnam has more than ten-tupled, and so on.”
Disclosure
Grantham: Foundation targets 70% allocation to early-stage venture capital
“And in our case, we can own early stage, and we are over 60%. We target 70%, early stage VC. And of that, we target up to a half in the green variety”
Prediction Not checkable as stated
Grantham: Green VC will significantly outperform broader venture capital
“Because I think the top line opportunities It will be way over average even in the BC universe for a long time.”
Prediction Held up
Grantham: Emerging markets GDP growth will beat developed markets in 2021
“Emerging markets, as I said, it's way over half of the global GDP. It is growing far faster, and because of the size of China, it's guaranteed to do that. It's going to have a much better growth rate this year under stress, much better than the GDP growth of t…”
Opinion
Grantham: Top graduates choose startups and VC over Goldman Sachs
“The really best and brightest don't go to Goldman Sachs, sorry, Goldman Sachs, anymore, like they did in the financial bubble. They want to get into the VC business, to be mixing with things that really matter, and many of them to be actually starting their ow…”
Assertion Supported
Grantham: Venture capital uses very little leverage compared to other classes
“Ironically, leverage plays the least role in venture capital. Most of them have relatively little leverage. It's equity money.”
Assertion Supported
Grantham: Corporate interest coverage is well above historical averages
“When you look at interest rate coverage, you find that the entire corporate system is in pretty darn good shape, well above average.”
Insight
Grantham: Moderate inflation supports faster growth and better worker treatment
“A moderate amount of inflation is completely compatible with a healthy economy, faster growth rates, and better treatment of the workers who have been sadly neglected in the US in particular.”
Assertion Supported
Grantham: GMO never featured inflation as a major risk in 20 years
“So I am actually very proud to say that I wrote quarterly letters for 20 years, and I never featured inflation as a major risk.”
Prediction Not checkable as stated
Grantham: Wage inflation is not in immediate danger of spiraling
“To work through to wages, where inflation really starts to escalate, it's going to take a long time, because we've had such miserable deflation in the typical average wage for so long that we are not in immediate danger of having them spiral out of control.”
Insight
Grantham: 3% to 5% inflation will compress PEs without hurting economy
“The economy is very, very durable in the face of Anything up to intermediate inflation levels, three, four, five percent. It won't affect the economy, but it will knock down price earnings ratios.”