Warren Buffett: Avoid Bitcoin Like Rat Poison

Warren Buffett isn’t a fan of Bitcoin. Nevertheless, Bitcoin stocks like HIVE Blockchain Technologies (TSXV:HIVE) are soaring in the market.

| More on:

Warren Buffett recently came out swinging against Bitcoin, calling the asset “rat poison” and saying that he’d never invest in it. It wasn’t his first time criticizing crypto but probably his sharpest comment against it. Warren Buffett and his partner Charlie Munger have been railing against crypto for years. Munger in particular has been fiercely critical, essentially viewing the entire thing as a fraud.

Yet you can’t argue with Bitcoin’s returns. Since 2011, the world’s largest cryptocurrency has grown at 293% annualized — a greater-than-4,000,000% return! According to a December 2020 Cointelegraph article, Bitcoin had an 8,900,000% return from its inception until that date. That’s one of the best returns of any asset in the history of civilization, and it seems to be continuing this year.

In this article, I’ll explore Bitcoin’s history to help evaluate whether it’s really a bubble like Buffett thinks, or something more significant. We can start by comparing it to two of history’s most famous “bubble” assets.

Bitcoin vs. history’s famous bubbles

When Buffett calls Bitcoin “rat poison,” what he means is that it’s a “bubble” asset with no intrinsic value. In a 2018 CNBC interview, he said he’d put a five-year put on every single cryptocurrency if he could. So, he thinks most of these assets will collapse massively in value.

To evaluate this claim, we can compare Bitcoin to past bubbles that came crashing down: Tulipmania and the South Sea Bubble. Both of these are classic examples in the history of financial mania and are often compared to Bitcoin itself.

The timelines for these bubbles were as follows:

  • Tulipmania: 1636 to 1637 (one year).
  • South Sea Bubble: 1711 to 1720 (nine years), with the most pronounced price swing occurring in 1720.

So, the two bubbles Bitcoin is most often compared to were much shorter than Bitcoin’s 11-year rise. This is particularly true if you view the 1720 price surge and collapse in the South Sea Bubble as the “true” bubble. While South Sea Company stock had been rising from 1711 on, 1720 alone saw the majority of the increase, with prices up 900% that year. The 1711-1720 price gains were much more modest.

What about Blockchain stocks?

Based on the above comparisons, it doesn’t look like Bitcoin is the speculative “bubble” asset that Warren Buffett thinks it is. A bubble is often defined as a “rapid, short-term rise in prices driven by speculative mania.” Bitcoin’s long-term rise does not meet at least one of the criteria — namely “short term.” This has been going on for far too long to be just another bubble.

It’s the same story with blockchain stocks like HIVE Blockchain Technologies (TSXV:HIVE). Over the past year, HIVE stock has risen more than 2,000%. That rise has in large part been driven by genuinely good results from the company. In the first quarter, HIVE had net income of $2.6 million; by the second, it was up to $9.2 million. On a year-over-year basis, that $9.2 million profit was up from a $11 million loss. These are real cash profits that HIVE is generating for its investors, by mining cryptocurrency. Yes, Bitcoin, and stocks like HIVE, are volatile. But they are real economically productive assets that are producing for their investors over the long term.

Fool contributor Andrew Button has no position in any of the stocks mentioned.

More on Tech Stocks

gold prices rise and fall
Tech Stocks

The Only 3 Stocks I’d Consider Buying in March 2026

March 2026 presents unique stock opportunities amid AI spending and geopolitical tensions. Learn which stocks to watch.

Read more »

young adult uses credit card to shop online
Tech Stocks

Shopify Stock Is Still 35% Cheaper Today, And It’s Still a Forever Hold

Shopify is no longer a hype-only story. The business is bigger -- and generating meaningful cash flow.

Read more »

Digital background depicting innovative technologies in (AI) artificial systems, neural interfaces and internet machine learning technologies
Tech Stocks

2 Canadian AI Stocks Poised for Significant Gains

These two Canadian stocks are showing real strength in the AI space, and they’ve got the numbers to back it…

Read more »

Dividend Stocks

The Best Canadian Stocks to Own During a Trade War

In the face of tariffs, Canadian stocks with scale, pricing power, or defence-linked demand can hold up better than most.

Read more »

young people dance to exercise
Dividend Stocks

Canadians: How Much Should Be in a 20-Year-Old’s TFSA to Retire?

At 20, having any TFSA savings matters more than the size, because consistency is what compounds.

Read more »

gold prices rise and fall
Tech Stocks

This Aggressive Savings Strategy Can Help Make Up for Lost Time

Maximize your wealth with an aggressive savings strategy. Learn how to invest effectively and recover lost time in the market.

Read more »

person enjoys shower of confetti outside
Tech Stocks

2 Millionaire-Maker Technology Stocks

Add these two TSX tech stocks to your self-directed portfolio to leverage capital appreciation for significant long-term wealth growth.

Read more »

A chip in a circuit board says "AI"
Tech Stocks

AI Spending Is Poised to Hit $700 Billion in 2026: 2 Top Stocks to Buy to Capitalize on This Massive Number

Find out how AI spending by top hyperscalers is transforming industries. Follow the capital flow to see where the money…

Read more »