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Investment insights from Capital Group

The pros and cons of Bitcoin
Mark Casey
Equity Portfolio Manager
Douglas Upton
Equity Investment Analyst

Rarely has an emerging technological development captured as much attention as Bitcoin in such a short period of time.

The debate over Bitcoin — and the cryptocurrency craze has spawned — runs the gamut from advocates who see it has the future of finance to skeptics who compare it to a classic pyramid scheme. As the arguments intensify, so have the stakes: The market capitalization of the crypto universe has increased from roughly $200 billion in 2019 to more than $2.2 trillion at the end of 2021.

The rapid growth of the crypto industry has inspired a lively debate among Capital Group’s investment professionals, as well. To provide a glimpse into these discussions, we are sharing thoughts from two of Capital’s brightest minds on the advantages and disadvantages of Bitcoin.

Portfolio manager Mark Casey provides the “pro” argument, while Douglas Upton, an equity analyst covering the metals and mining industry, provides the “con” rebuttal.

We start with perhaps the toughest question of all:

Given Bitcoin’s volatility, how can investors determine a reasonable price for it?

Mark Casey: Bitcoin's valuation is a real paradox. On the one hand, it’s an asset that can never produce earnings and, like all assets that can never produce earnings, it has an intrinsic value of zero. You can't do a discounted cash flow analysis of Bitcoin just as you can’t do a discounted cash flow analysis of gold, or a Stradivarius violin, or fine art, or any other form of collectible. Anything that can't produce earnings is only worth what other people will pay for it. And so, in a sense, the valuation is completely arbitrary.

On the other hand, I think Bitcoin might become one of the most valuable assets in the world. And the reason is, the unique properties of Bitcoin are almost universally interesting to everybody who interacts with money.

1. No one can create any more of it. There will always be a supply cap of 21 million Bitcoins, so no person or government can dilute your position by printing more.

2. Bitcoin is the only form of money that can’t be censored. It’s available for use by anyone with an internet connection, and no one can stop you from sending or receiving a transaction.

3. It’s hard to confiscate. Your Bitcoin is really just a password. You can carry it around in your head, or write it down, and take it with you across any border in the world. Unlike the money in your checking account, it can’t be confiscated by the government or creditors.

Half the people in the world live under authoritarian regimes that can block them from using the money system or remove money directly from their bank accounts, so I think there's tremendous appeal to this type of asset. There's roughly $600 trillion of wealth in the world. If Bitcoin gains a larger share of that, the price can go up a lot.

Douglas Upton: I’m kind of jealous, actually. I wish I had thought of creating something that’s divisible, with rules can’t be changed, and there’s a limited supply — and then convince people to buy it from me. I honestly feel like I would have been laughed out of the room. Mark puts Bitcoin in the same category as fine art and fancy violins. You can always question the valuation, but the scarcity of those items is genuine. Whereas the scarcity of Bitcoin is artificial; someone just made it up.

When I look at the history of Bitcoin, it was originally established as a way of sending money over the internet, and it's bad at that. It’s very inefficient. Over time, somehow the thesis changed to: “It’s a store of value.” As an analyst who has followed gold for many decades, I feel like I've seen this movie before.

“The financial markets don’t need Bitcoin, but Bitcoin needs the financial markets.”

In my first job I worked on the biggest bullion desk in the world. We would say, "Well, if everybody put 5% of their assets in gold, the gold price would be a lot higher." And now here we are with Bitcoin. It’s the same argument.

The price of Bitcoin is set by the financial markets — by people who are buying it solely because they think other people will pay more for it in the future. That sounds a lot like a pyramid scheme to me. The financial markets don’t need Bitcoin, but Bitcoin needs the financial markets. People can make a lot of money and they can lose a lot of money, but putting an intellectual framework around Bitcoin’s valuation is near impossible.

What’s driving Bitcoin’s price surge?

Bitcoin P and C Price chart

Sources: Capital Group, Refinitiv Eikon. As of 12/19/2021.


Is Bitcoin an effective hedge against inflation?

Casey: I think Bitcoin will prove to be an excellent inflation hedge. If you look around the world, there are about $100 trillion of assets held in various forms of cash. All of it is essentially losing purchasing power over time because governments tend to print fiat currency faster than the economy grows.

There's also about $125 trillion of bonds and about $20 trillion of them have negative yields, so investors know they will lose money. There are many more bonds where inflation is probably going to be larger than the coupon. So investors think they're going to earn 3%, but they will actually lose 3% if inflation turns out to be 6%.

“Bitcoin is the only form of money in human history where you can't change the monetary policy and you can't print more.”

Some of those people are going to look at their portfolios and say, “It would be nice to own something that can actually hold its value or goes up over time.” They are going to look at their cash holdings and wonder why they are losing purchasing power in fiat currency. (The answer is money printing.) And some percentage of them will come to Bitcoin, because it is the only form of money in human history where you can't change the monetary policy and you can't print more.

Upton: First, throughout most of history, negative interest rates have been rare. Holding fiat currency normally earns you interest over time. Mark’s argument only makes sense in a world with negative real interest rates. That may be the specific circumstance we are in right now, but throughout history, real interest rates have been positive the vast majority of the time.

Second, if you’re looking to avoid currency risk, then the key decision is to get your money out of that currency. If you’re in Lebanon, for instance, and the Lebanese pound has just collapsed, you would have been fine whether you moved into gold, Bitcoin, the U.S. dollar, or New York real estate.

Third, there are lots of tangible assets that can work well as a hedge against inflation, including nearly every commodity you can think of. Commodities have been an effective inflation hedge over many cycles. The point is, you have choices and many of them have a much longer track record than Bitcoin.

Is Bitcoin mining bad for the environment?

Upton: Bitcoin mining uses more electricity than some countries, and most countries around the world are working hard to reduce their carbon footprint. Any use of energy that doesn't go toward the sustenance of people I think is questionable and should be examined closely.

According to various estimates, Bitcoin mining uses over 100 terawatt hours of electricity per year. If you purchase that energy even in a low cost electricity system, it’s going to run $3 billion to $4 billion a year. We should think of this amount, as well as the other costs associated with Bitcoin mining, as a negative carry, similar to currency depreciation. It’s material and it’s meaningful.

Society has to ask: What value is Bitcoin adding that justifies such a high cost and such a large carbon footprint? In my view, Bitcoin only creates value for a small number of people. It’s an easy win for the planet to say we don’t really need this.


Bitcoin mining consumes more power than some nations

BTC Power Demand Chart

Sources: Capital Group, Cambridge Centre for Alternative Finance, U.S. Energy Information Association (EIA). "TWh" refers to terawatt-hours. Latest available country figures are from 2019, while Bitcoin's estimated energy consumption is based upon trailing 12-month energy consumption, as of November 2021. The Cambridge Bitcoin Electricity Consumption Index provides a real-time estimate of the total electricity consumption of the Bitcoin network.

Casey: On the contrary, I think Bitcoin has a great energy consumption story. The software that drives the system is designed to thrive regardless of the number of miners, the price of computer chips, the price of energy, or the price of Bitcoin. The system is adaptable, and it flexes up and down based on these variables.

Compared to other industrial activities, Bitcoin is one of the greenest industries on the planet. And it’s getting greener all the time because Bitcoin miners are uniquely positioned to take advantage of intermittent forms of energy, such as a temporary oversupply of hydropower during the rainy season.

Today, Bitcoin miners purchase one tenth of 1% of all the energy in the world. So that means 99.9% of the world’s energy is going to other things. Even in a very bullish case where Bitcoin rises to $1.5 million per coin over the next 10 years, miners will still be purchasing less than 1% of the world’s energy. Bitcoin’s energy use is negligible. It will always be nothing more than a rounding error.

What’s the risk that governments will ban Bitcoin?

Upton: I think there is a very real risk that governments will eventually decide to ban Bitcoin and other cryptocurrencies or severely restrict their use. We’ve already seen it happen in China, and it could happen elsewhere if governments feel like they are losing control of the financial system.

There is an interesting precedent, of which Mark reminded me. In 1933, the U.S. government banned private ownership of gold. That was during the Great Depression when the government was looking for every lever it could to control the supply and cost of money. For governments and central banks around the world, I think losing control is unacceptable.

Bitcoin’s rapid growth could lead to its own unwinding.

Casey: I agree that some governments might try to ban Bitcoin. I view this as the biggest potential headwind to adoption and the best multi-year bear case, but it’s not a decisive bear case. I don’t think governments can extinguish Bitcoin — and attempts to ban it might actually accelerate adoption by people who are already skeptical of heavy-handed government intervention.

Bitcoin was designed with a decentralized architecture precisely to prevent anyone from being able to control the future of the system — and that includes governments. Bitcoin operates outside government boundaries, and I don’t think it could be banned, although such a move by the U.S. or the European Union would certainty hurt prices in the short term. Over the long term, however, it could cause demand for Bitcoin to skyrocket.


Bitcoin’s rapid growth has spawned many crypto competitors

Crypto Market Cap Chart

Sources: Capital Group, As of 12/17/21. All figures are estimates and subject to change based on volatility in coin prices, circulating supply and foreign exchange rates. "Market cap" refers to market capitalization and is calculated based on current price multiplied by circulating supply as quoted on

Will Bitcoin eventually fall prey to competition from other digital currencies?

Casey: Bitcoin is built on open-source software, so anyone can make a copy of it, change a few variables and launch a new type of coin. That experiment has taken place literally thousands of times. So every person who holds Bitcoin has had thousands of opportunities to sell it and buy some other cryptocurrency — perhaps one that has a higher supply cap than 21 million or a faster method to process new transactions.

What I find interesting is that so far, Bitcoin owners have considered these options to diversify and yet an overwhelming majority have said no. So I think Bitcoin is likely to survive in the same fundamental form that it exists today. It has seen plenty of competition over the past decade and it remains the king of the cryptocurrency realm.

Mark Casey is an equity portfolio manager with 22 years of investment experience. He holds an MBA from Harvard and a bachelor's from Yale.

Douglas Upton is an equity investment analyst at Capital Group. He has 32 years of investment experience and has been with Capital Group for 16 years. He holds both an MBA and a bachelor’s degree in mathematics and physics from the University of Western Australia. Doug is based in London.

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Statements attributed to an individual represent the opinions of that individual as of the date published and do not necessarily reflect the opinions of Capital Group or its affiliates. All information is as at the date indicated unless otherwise stated. Some information may have been obtained from third parties, and as such the reliability of that information is not guaranteed.

Capital Group manages equity assets through three investment groups. These groups make investment and proxy voting decisions independently. Fixed income investment professionals provide fixed income research and investment management across the Capital organization; however, for securities with equity characteristics, they act solely on behalf of one of the three equity investment groups.