2 practical investing lessons from ‘The Big Short’

Can ‘The Big Short’ offer lessons for a private investor buying UK shares? Christopher Ruane thinks so — and explains two insights from the film that he applies.

The content of this article was relevant at the time of publishing. Circumstances change continuously and caution should therefore be exercised when relying upon any content contained within this article.

You’re reading a free article with opinions that may differ from The Motley Fool’s Premium Investing Services. Become a Motley Fool member today to get instant access to our top analyst recommendations, in-depth research, investing resources, and more. Learn More.

When the film The Big Short came out, many viewers thrilled to its gripping storyline, if not its frequent swearing! But the film’s storyline about the 2008 financial crisis also contains practical lessons for me as a private investor, I feel. Here are two that I apply when buying shares for my portfolio.

The importance of timing

In one scene, investor Michael Burry is confronted by an angry investor about the growing cost of a trade that is still in the red. “I might be early, but I’m not wrong.” says Burry. His investor shoots back, “It’s the same thing”.

I do not think being early as an investor is always the same thing as being wrong. But bad timing can definitely make an investment far less attractive even for a long-term investor. Consider Computacenter as an example. Imagine I had looked at the emergence of the internet and decided in early 2000 that increased digital workflows could be good for the company’s share price. I would have been proven right – but not for two decades. That is how long it took the Computacenter share price simply to get back to where it had been in 2000, even though earnings per share had more than quadrupled in the meantime.

So although Burry’s financial analysis turned out to be correct, I think his investor was also correct to emphasise the importance of timing in investment. As the Computacenter example demonstrates, even if being early does not make me wrong about a share, it could come with a high opportunity cost. 

Doing the research

There is another scene in The Big Short that I think offers a valuable investment lesson for me as a private investor. When Burry is asked how he knows what is in the complex financial instruments on which his trade depends, he reveals that he read them line by line. That also meets with an incredulous response from his own investor: “You read them? No one reads them. Only the lawyers who put them together read them.”

I think that is true of documents that could affect my shareholdings too. In many cases, few investors will actually take the time to read them in detail. But doing so could reveal crucial information.

For example, I own shares in British American Tobacco. I already realise declining smoking rates could hurt sales and profits in future. But is that the only risk? The company’s most recent annual report devotes no less than 25 pages to a single footnote to BAT’s accounts, entitled “Contingent Liabilities and Financial Commitments”. It details a variety of ongoing risks to the company’s profits, many caused by ongoing litigation. Wading through such detailed information can help me spot red flags as an investor. Just like Burry, in some cases simply taking the time to read publicly available information could help me spot situations where the market has mispriced risk. That could help me spot opportunities as an investor.

Learning from ‘The Big Short’

High finance on Wall Street can seem a long way from being a small shareholder. But I think The Big Short has some useful lessons for me as a private investor. Learning them is a simple, practical way in which I can try to improve my investment returns.

Christopher Ruane owns shares in British American Tobacco. The Motley Fool UK has recommended British American Tobacco. Views expressed on the companies mentioned in this article are those of the writer and therefore may differ from the official recommendations we make in our subscription services such as Share Advisor, Hidden Winners and Pro. Here at The Motley Fool we believe that considering a diverse range of insights makes us better investors.

More on Investing Articles

Black woman using smartphone at home, watching stock charts.
Investing Articles

2 spectacular growth stocks to consider buying in March

Investors ignore the risks with growth stocks when things are going well. But when this changes, fixating on the dangers…

Read more »

UK financial background: share prices and stock graph overlaid on an image of the Union Jack
Investing Articles

Why is the FTSE 100 suddenly beating the S&P 500?

The UK's blue-chip index has been on fire over the past couple of years, helping it catch up to the…

Read more »

Artillery rocket system aimed to the sky and soldiers at sunset.
Investing Articles

This non-oil FTSE stock’s risen 4.6% in 3 days. What’s going on?

Against the backdrop of trouble in the Middle East, James Beard investigates why this FTSE 100 stock’s doing so well.…

Read more »

Three signposts pointing in different directions, with 'Buy' 'Sell' and 'Hold' on
Investing Articles

Has a 2026 stock market crash just come a whole lot closer?

If we're in for a stock market crash, what's the best way for us to prepare, and what kinds of…

Read more »

Silhouette of a bull standing on top of a landscape with the sun setting behind it
Investing Articles

Up 79% in a year, this FTSE 250 stock still gets a resounding Strong Buy from analysts

This under-the-radar growth stock in the FTSE 250 has been on fire over the past 12 months. Why are City…

Read more »

Frustrated young white male looking disconsolate while sat on his sofa holding a beer
Investing Articles

Vistry shares down 20%! Here’s what I’m doing…

Vistry shares have crashed as the firm cuts prices and moves away from share buybacks. But is Stephen Wright’s long-term…

Read more »

UK financial background: share prices and stock graph overlaid on an image of the Union Jack
Investing Articles

The IAG share price is climbing today despite war fears – what’s going on?

It's been a tough week for the IAG share price and Harvey Jones expects more volatility. Yet the FTSE 100…

Read more »

Businessman with tablet, waiting at the train station platform
Investing Articles

By March 2027, £1,000 invested in Natwest shares could turn into…

NatWest shares have been on a tear in recent years. What might the next 12 months have in store for…

Read more »