Is this the most undervalued stock on the FTSE 100 today?

Should investors pile into this company right now?

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.

Finding grossly undervalued stocks when the FTSE 100 is above 7,000 points may sound tough. After all, the index is flying high following a year that has seen its price level soar by 28%. However, there are a number of stocks which could be undervalued, based on their growth potential. Here’s a company that could fall into this category, and may deliver stunning total returns in 2017 and beyond.

Upbeat performance

GlaxoSmithKline (LSE: GSK) could prove to be undervalued thanks to its impressive pipeline of new drugs. Its update this week showed that while treatments such as its leading asthma drug, Advair, could see sales falls of up to 45% as generic drugs hit the market, its long-term growth potential remains sound. The company is set to receive the results of up to 30 clinical trials in the next two years, which could eventually act as positive catalysts on its share price.

Furthermore, GlaxoSmithKline continues to offer a potent mix of the growth potential of a pharmaceutical business combined with a relatively stable consumer goods operation. This means that while it has the scope to bring blockbuster drugs to market, which cause its sales to increase dramatically, it also offers investors a degree of stability through products such as Gaviscon and Nicorette.

Growth potential

In the current year, the company is expected to record a rise in its earnings of around 9%. When combined with a price-to-earnings (P/E) ratio of 15, this equates to a price-to-earnings growth (PEG) ratio of 1.7. This indicates that the company offers excellent value for money, given the fact that it should benefit from weaker sterling and higher demand for healthcare as the world population grows and ages.

Of course, GlaxoSmithKline will need to grow without its current CEO, Sir Andrew Witty. He will leave the company next month to be replaced by current consumer healthcare leader Emma Walmsley. She’s likely to provide continuity, which reduces the risks arising from a change in leadership. And while there have been calls for a split in the company between its pharmaceutical and consumer divisions, the balance provided and the growth opportunities they offer suggest the stock is a stunning long-term buy.

A riskier alternative?

Trading on an even lower valuation is sector peer Shire (LSE: SHP). It has a PEG ratio of only 0.6 thanks in part to a rapidly growing bottom line. Its earnings are due to rise by 21% this year, followed by further growth of 15% next year as its combination with Baxalta begins to positively impact on its financial performance. Of course, there are question marks as to whether the two companies will prove to be a good fit. But with substantial synergies, the deal looks set to boost Shire’s long-term performance.

While it’s cheaper than GlaxoSmithKline and has better growth prospects, Shire lacks the diversity of its larger peer. As such, based on their risk/reward ratios, GlaxoSmithKline appears to be a stronger investment and one of the best value stocks in the FTSE 100.

Peter Stephens owns shares of GlaxoSmithKline. The Motley Fool UK owns shares of and has recommended GlaxoSmithKline. We Fools don't all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors.

More on Investing Articles

Warren Buffett at a Berkshire Hathaway AGM
Investing Articles

Can someone invest like Warren Buffett with a spare £500?

Christopher Ruane explains why an investor without the resources of billionaire Warren Buffett could still learn from his stock market…

Read more »

Investing Articles

Can these 2 incredible FTSE 250 dividend stocks fly even higher in 2026?

Mark Hartley examines the potential in two FTSE 250 shares that have had an excellent year and considers what 2026…

Read more »

Thoughtful man using his phone while riding on a train and looking through the window
Investing Articles

Is 45 too late to start investing?

Investing at different life stages can come with its own challenges -- and rewards. Our writer considers why a 45-year-old…

Read more »

Hand of person putting wood cube block with word VALUE on wooden table
Investing Articles

UK shares look cheap — but the market might be about to take notice

UK shares have traded at a persistent discount to their US counterparts. This can create huge opportunities, but investors need…

Read more »

Investing Articles

This FTSE 100 growth machine is showing positive signs for a 2026 recovery

FTSE 100 distributor Bunzl is already the second-largest holding in Stephen Wright’s Stocks and Shares ISA. What should his next…

Read more »

Investing Articles

I asked ChatGPT for the best FTSE 100 stocks to buy for passive income in 2026 and it said…

Paul Summers wanted to learn which dividend stocks an AI bot thinks might be worth buying for 2026. Its response…

Read more »

ISA Individual Savings Account
Investing Articles

Stop missing out! A Stocks and Shares ISA could help you retire early

Investors who don't use a Stocks and Shares ISA get all the risks that come with investing but with less…

Read more »

Investing Articles

Will Greggs shares crash again in 2026?

After a horrible 2025, Paul Summers takes a look at whether Greggs shares could sink even further in price next…

Read more »