I think the Synairgen share price has one major problem

The Synairgen share price has exploded due to optimism for its potential Covid-19 treatment. However, there is one big problem, says this Fool.

| More on:

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.

Flashing Share Prices

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.

The Synairgen PLC (LSE: SYN) share price is having a great month. After exploding 420% in one day in July, it’s since grown another 32% to 250p, and appears to be still climbing.

Indeed, one analyst has a price target of 360p per share for the small-cap biotech firm. This target is based on the optimistic view that Synairgen will have an order book of £2b to £3b, and a market capitalisation of £0.5b, by the year-end.

Could this be the growth stock of the year for your portfolio?

I don’t think so. 

The major problem with the Synairgen share price

The broker’s optimism for Synairgen’s stock is based on the positive results from the firm’s Phase II drug trial for SNG001. The therapy is shown to be effective in treating a relatively small number of hospitalised COVID-19 patients. Hence, the July stock surge.

Moreover, the target price is assessed on SNGoo1 being available to purchase before the winter 2020 flu season, and a possible second wave of Covid-19.

But, there’s a long way to go yet before selling it is viable.

Phase III trials will involve testing up to several thousand patients with Covid-19, and trials often last more than a year. In addition, and to the best of my knowledge, Synairgen has never taken a drug therapy to market.

Pharmaceutical giants, like AstraZeneca, have established routes to market and innovative drug pipelines. Synairgen, in contrast, is a specialist drug research and development company. It’s highly unlikely to have created this capability. Consequently, it will need a larger partner to assist.

Routes to market are a stable of big pharma. But, assistance to smaller firms at this time will depend on the quality of other competition for its resources.

The current Synairgen share price is based on short-term optimism that all this falls into place pretty quickly. I don’t think it’s realistic. 

Pie in the sky valuation

Moreover, valuing Synairgen’s Covid-19 opportunity is almost impossible. Recent broker valuations have used the price points of other potential Covid-19 therapies, such as Gilead‘s Remdesivir, as substitutes. But delivering therapeutics is part of Gilead’s business model.

Demand for drugs to treat Covid-19 is one thing. Supplying it on the scale required is quite another. And scaling SNG001 for production, even if Phase III trials are successful, will depend on other firms acting as partners. Much will depend on the value Synairgen’s product potentially provides to their respective business models.  

Notably, Synairgen hasn’t yet produced a reliable revenue stream. Its funding is entirely reliant on investors. Although this is not unusual for a small biotech firm with a long product development cycle, it could reduce its leverage in negotiations for assistance with big pharma.

The last few weeks of Synairgen share price movements may have given investors the return they were hoping for. However, I don’t share the optimism of a 360p price target, and I won’t be surprised if investors are disappointed later this year. At the current price, there are better growth opportunities out there.  

Rachael FitzGerald-Finch has no position in any of the shares mentioned. The Motley Fool UK has no position in any of the shares mentioned. 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

Percy Pig Ocado van outside distribution centre
Investing Articles

When it comes to the Ocado share price, is it a case of ‘bye bye’ or ‘buy buy’?

Since the online retailer and technology group listed in July 2010, Ocado’s share price has been a huge disappointment. But…

Read more »

Young Caucasian man making doubtful face at camera
Investing Articles

£20,000 in savings? Here’s how you can use that to target a £5,755 yearly second income

It might sound farfetched to turn £20k in savings into a £5k second income I can rely on come rain…

Read more »

Snowing on Jubilee Gardens in London at dusk
Investing Articles

Last-minute Christmas shopping? These shares look like good value…

Consumer spending has been weak in the US this year. But that might be creating opportunities for value investors looking…

Read more »

Dominos delivery man on skateboard holding pizza boxes
Investing Articles

2 passive income stocks offering dividend yields above 6%

While these UK dividend stocks have headed in very different directions this year, they're both now offering attractive yields.

Read more »

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

How I’m aiming to outperform the S&P 500 with just 1 stock

A 25% head start means Stephen Wright feels good about his chances of beating the S&P 500 – at least,…

Read more »

British pound data
Investing Articles

Will the stock market crash in 2026? Here’s what 1 ‘expert’ thinks

Mark Hartley ponders the opinion of a popular market commentator who thinks the stock market might crash in 2026. Should…

Read more »

Investing Articles

Prediction: I think these FTSE 100 shares can outperform in 2026

All businesses go through challenges. But Stephen Wright thinks two FTSE 100 shares that have faltered in 2025 could outperform…

Read more »

pensive bearded business man sitting on chair looking out of the window
Dividend Shares

Prediction: 2026 will be the FTSE 100’s worst year since 2020

The FTSE 100 had a brilliant 2026, easily beating the US S&P 500 index. But after four years of good…

Read more »