Buffett Indicator: How Much Further Will the TSX Stock Market Crash?

Warren Buffett’s favorite indicator suggests the Canadian stock market is fairly valued. I’m waiting for a bargain.

The S&P/TSX 60 Index, an index of the 60 largest companies listed on the Toronto Stock Exchange, fell 10.6% yesterday. It was the largest single-day stock market crash since 1987, wiping out $298 billion in collective shareholder wealth overnight. The global stock market rout this week is having an impact on everyone, including legendary investor Warren Buffett himself. 

Thus far this year the market has been steadily eroding in value. If you’d invested $10,000 in a low cost index fund at the start of 2020, it would be worth only $8,470 today. Such a rapid loss should make even the most passive investors take a closer look to see whether the market sell-off is over or whether the rout has potential to continue. 

Here’s a look at what Warren Buffett’s favourite stock market indicator says about stock valuations and what impact the oil price is likely to have on Canadian investors in 2020. 

Buffett indicator for stocks

Warren Buffett once said that the ratio of a country’s annual output to the market capitalization of its stock market was the best indicator of valuations. In other words, if the stock market is worth more than gross domestic product (GDP), stocks are overvalued and vice versa. 

The indicator was over 100% for years, which could be the reason why Buffett was hoarding so much cash recently.  

In Canada, the stock market-to-GDP ratio was as high as 137% before the oil market crash of 2015; it’s currently at 105%. That could mean stocks are fairly valued and that investors should consider adding exposure to the TSX index in the near term. However, I believe the sudden drop in oil prices complicates this theory. 

Oil price

The price of crude oil dropped nearly 30% on Monday, marking its biggest drop since the Gulf War erupted in 1991. That’s bad news for Canadian companies and the Canadian dollar. 

Oil and gas companies will bear the brunt of this ongoing price war in the global crude oil market. Heavyweights like Suncor Energy and Enbridge have already lost billions in market value since Monday. Altogether, the energy sector contributes 17.7% of the TSX 60. Also, about 9% of Canada’s GDP is derived from crude oil. 

In other words, we can expect Canada’s GDP to shrink this year if the oil price remains low: a technical recession. This will have a knock-on effect on other businesses. People cut back on spending and the national currency tends to depreciate during recessions, which could mean higher import costs and lower demand for companies like Dollarama or Shopify.  

Investors should probably brace for profit warnings, dividend cuts and perhaps even bankruptcies over the course of this year as corporations adjust to a new reality.  

Foolish takeaway

The Buffett indicators measures the ratio of Canada’s stock market to its GDP. It’s currently at 105% in Canada, which indicates fair value. However, as GDP is expected to fall this year, the market might have to fall even further to remain fairly valued. 

The stock market crash doesn’t appear to be over just yet. Long-term investors should probably wait to buy the dip later. Stay cautious, stay safe, and good luck!

Tom Gardner owns shares of Shopify. The Motley Fool owns shares of and recommends Enbridge, Shopify, and Shopify. Fool contributor Vishesh Raisinghani has no position in any of the stocks mentioned. 

More on Stocks for Beginners

Stocks for Beginners

1 Cheap Canadian Stock Down 66% to Buy and Hold

Air Canada is down hard from its highs, but the business is still throwing off cash and guiding to higher…

Read more »

Nurse uses stethoscope to listen to a girl's heartbeat
Dividend Stocks

A 7% Dividend Stock Paying Out Monthly

Diversified Royalty turns a basket of consumer brands into a steady monthly cheque, and that’s exactly what income investors crave.

Read more »

TFSA (Tax-Free Savings Account) on wooden blocks and Canadian one hundred dollar bills.
Dividend Stocks

How to Build a $50,000 TFSA That Throws Off Nearly Constant Income

See how a $50,000 TFSA can deliver constant income by combining dependable Canadian dividend stocks for low-maintenance returns.

Read more »

some REITs give investors exposure to commercial real estate
Dividend Stocks

1 Dividend Stock Down 46% to Buy Immediately for Years to Come

Allied’s unit price has been crushed, but its new leaner payout and debt-cutting plan are setting up a possible comeback.

Read more »

Hourglass and stock price chart
Dividend Stocks

5 TSX Dividend Stocks Worth HoldingThrough the Next 10 Years

Here are five TSX dividend stocks that offer stability, income, and long‑term durability for the next decade.

Read more »

a person watches stock market trades
Stocks for Beginners

5 Canadian Stocks to Watch as 2026 Really Gets Underway 

Get insights into Canadian stocks that show promise for 2026. Find out which stocks are weathering economic challenges.

Read more »

businessmen shake hands to close a deal
Tech Stocks

1 Terrific Tech Stock Down 30% to Buy and Hold for Decades

Docebo’s sell-off looks more like market nerves than a broken business, and its profits and buybacks are making that gap…

Read more »

a sign flashes global stock data
Dividend Stocks

3 TSX Dividend Stocks Worth Owning if You’d Rather Not Watch the Market Every Day

Own these three TSX dividend stocks if you want reliable income and long‑term stability without tracking the market daily.

Read more »