We have some exciting news to share! The Motley Fool UK has now become The Twelfth Magpie -- an independent, UK-owned company, led by our long-serving UK management team — Mark Rogers, Chris Nials and Heather Adlington. In practical terms, it’s the same team you know, now fully focused on serving our UK readers and members.

Just as importantly, our approach remains unchanged: long-term, jargon-free, and on your side. This site is our new home, and there will be extra tweaks made across the coming few days as we settle in. So if anything looks a little off, please bear with us!

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.

Evaluating good shares to buy after a market crash: here’s how I do it

Since the 2020 market crash, high premiums or a risky outlook make choosing the shares to buy a difficult task. Having a plan can help steer you to wealth.

You’re reading a free article with opinions that may differ from The Twelfth Magpie’s Premium Investing Services. Become a member today to get instant access to our top analyst recommendations, in-depth research, investing resources, and more. Learn more, and get a free 'Best Buy Now' stock!.

The difficulty with calculating the value of a publicly listed company today, is that many can either seem wildly overvalued or incredibly risky. This is because the March market crash magnified the good and bad points in businesses. Stocks were perceived as either a great buy, so everyone piled in, or a risky buy, so everyone ran a mile. This has pushed the value of some companies up, giving them a price-to-earnings ratio (P/E) higher than the norm of a pre-pandemic world. Meanwhile, the poor performers have ended up with an overly low P/E. So how do you know which shares to buy?

Distinguishing good stocks from bad

The two extremes of overvalued versus undervalued, make it difficult to choose which shares to buy, as in effect they all seem risky. However, if you take a step back and really think about the future; companies on both sides of the coin will still be here. The trick is to identify the strong survivors and be confident in your conviction to own them.

Should you buy Rolls Royce shares today?

Before you decide, please take a moment to review this report first. Despite ongoing uncertainties from US tariffs to global conflicts, Mark Rogers and his team believe many UK shares still trade at substantial discounts, offering savvy investors plenty of potential opportunities to learn about.

That’s why this could be an ideal time to secure this valuable research – Mark’s analysts have scoured the markets to reveal 5 of his favourite long-term ‘Buys’. Please, don’t make any big decisions before seeing them.

For example, AstraZeneca, Avon Rubber and Rentokil Initial each have a high P/E and I’m confident they’ll still be here in the decades to come because they create niche products in high-demand markets.

On the underappreciated side of the stock market, Aviva has a low P/E today. Aviva has over 33m customers in 16 countries and is well known for its insurance and pension products. Its recent financial results were positive, and I think it’s another one that will still stand for many years to come.

To get an idea of why the P/E should often be taken with a pinch of salt, look at the success of Amazon. Its share price has steadily risen since it first listed, but its P/E has always been considered high. Going by P/E alone, it has never looked a great share to buy. This will have potentially put investors off the stock, yet it’s made a lot of shareholders very rich.

If you look at the price chart of Amazon, you will see there are many times in the past it has looked an expensive stock, only for it to go on and outperform repeatedly, through diversification and a powerful business model.

AMZN Amazon shares price-to-earnings PE Ratio Chart

Amazon AMZN share price history data by YCharts

The power of planning

Investing is a long-term pursuit, and to take part you should look for quality businesses to invest in for years ahead. Companies you believe will be here for many years and that you’d be happy to own a piece of for a long time. Good investors have a plan, thoroughly research the business they’re buying into and understand the sector it operates in. I think the easiest way to begin is with some specific criteria to help you identify excellent investments.

Look at when the company was established as new companies are harder to evaluate. Is it selling something that’s in demand and likely to remain so for many years to come? Does it have an edge on its competition? Does the management team appear dedicated and driven to ensure future success?

Knowing which shares to buy after a stock market crash is difficult, but if you take a long-term and level-headed approach, you could build considerable future wealth.

John Mackey, CEO of Whole Foods Market, an Amazon subsidiary, is a member of The Motley Fool’s board of directors. Kirsteen has no position in any of the shares mentioned. The Motley Fool UK owns shares of and has recommended Amazon. The Motley Fool UK has recommended Avon Rubber and recommends the following options: short January 2022 $1940 calls on Amazon and long January 2022 $1920 calls on Amazon. 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

photo of Union Jack flags bunting in local street party
Investing Articles

Here’s what £20,000 invested in the FTSE 100 in July 2025 is worth today…

Harvey Jones flags up just how well the FTSE 100 has done over the last year, and picks out a…

Read more »

Investing Articles

Could the BAE Systems share price really hit £26 in July 2027? Here’s what the experts say…

The BAE Systems share price stands at around £19 today but there are some really upbeat broker forecasts out there.…

Read more »

Investing Articles

£2,000 invested in penny stock Hardide at the start of 2026 is now worth…

Penny stock Hardide has generated blockbuster returns for investors in 2026. The big question is – does it have further…

Read more »

Three signposts pointing in different directions, with 'Buy' 'Sell' and 'Hold' on
Dividend Shares

Legal & General vs Investec: which is the best stock for second income?

Jon Smith talks about two of the top FTSE 100 dividend shares, ranked by yield, and weighs up which could…

Read more »

UK supporters with flag
Investing Articles

Great news for Rolls-Royce shareholders this week!

Rolls-Royce shares have jumped back above 1,400p this week. What has driven the FTSE 100 stock higher? And can it…

Read more »

Tree lined "tunnel" in the English countryside of West Sussex in autumn
Investing Articles

Here’s 1 FTSE 100 stock I’ll happily hold for decades

Identifying stocks I’d be comfortable holding for 10-20 years can be a daunting task, but the FTSE 100 has many…

Read more »

Arrow symbol glowing amid black arrow symbols on black background.
Investing Articles

By mid-2027, analysts expect $2,913 in Micron stock to be worth

Could investing in Micron stock today be like investing in Nvidia three years ago when it was trading at significantly…

Read more »

Young Asian woman with head in hands at her desk
Investing Articles

£5,000 invested in SpaceX stock after the IPO is now worth…

To the surprise of many, SpaceX stock has fallen below its IPO price of $135 meaning that those who bought…

Read more »