Is it finally time to pile into Sirius Minerals?

With the share price of Sirius Minerals plc (LON: SXX) dipping, should I buy?

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.

I’ve been arguing for a while that the best time to invest in Sirius Minerals (LSE: SXX) for the long term is likely to be just before the mine and infrastructure project is almost complete.

What can sometimes happen in mine-building projects like this is that the share price, and investors’ sentiment, can become so exhausted on the journey towards production that the shares often trade at their lowest in years, even though the end of the build is not far away and the risk is at its most-reduced.

Waiting for the sweet spot

That’s the sweet spot I’m waiting for with Sirius minerals because I want to avoid all the sharp reversals along the way. Wiggly share prices like this are a boon for traders, but if you want to invest for the long haul, I don’t think the time is right yet. I want the shares to go as low as possible because I’m after making a good-value long-term investment when the conditions are right.

That’s why I was heartened by the news released on 6 September that the firm’s stage two funding requirement had increased by between $400m and $600m! That bombshell pulled the rug from the share price and sent it down to where it is today. The company said in the statement it is reviewing “the most cost-effective and efficient sources of capital to fund the additional capital requirement.” So, the costs have shot well over the initial estimates. Don’t they always on big projects?

I said in an article in early 2015 that building a potash mine and all its associated infrastructure is an uncertain pursuit, adding “who knows what problems the firm will face along the way that may create delays and budget increases?” I argued back then  that I’d seen share prices wilt during the building process with other firms that were engaged in mine-development projects “and that could happen here.”

A long way to go

In fairness, the shares were only at 9p when I wrote that article and Sirius Minerals had yet to secure the planning permissions or to raise the finance it needed to build the mine and infrastructure. If you’d held on since then you’d be well up at today’s price, but the ride has been ‘white knuckle’. Today, the project is much further advanced, and chief executive Chris Fraser said in the September update the signing of contracts for the remaining tunnel drives and the materials handling facility meant the procurement phase was almost complete.

But the financial stakes are high, and any further rise in costs could drive the share price even lower. However, Mr Fraser said in the report that “the Project’s economics remain extremely compelling and we are confident they support the expected additional funding requirement.”

There’s still a long way to go before Sirius Minerals mines anything at all and plenty of potential for more slip-ups along the way. So I’m watching from the sidelines and if the opportunity I’m hoping for doesn’t come along, there will be plenty of other opportunities on the stock market to choose from instead.

Kevin Godbold 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

Calendar showing the date of 5th April on desk in a house
Investing Articles

Time’s running out for our 2025/26 Stocks and Shares ISA plans!

Never mind the stock market wobble, it's time to turn our attention to our Stocks and Shares ISA investments for…

Read more »

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

What might Warren Buffett think about today’s stock market?

Middle East conflict has given the UK stock market a bit of a hammering. But in the long-term scheme of…

Read more »

Man riding the bus alone
Dividend Shares

How big does my ISA need to be to make £2.5k in monthly passive income?

Jon Smith points out the key factors that go into building a dividend portfolio for passive income, and reviews one…

Read more »

Friends at the bay near the village of Diabaig on the side of Loch Torridon in Wester Ross, Scotland. They are taking a break from their bike ride to relax and chat. They are laughing together.
Investing Articles

2 UK stocks to consider buying as Mounjaro and Wegovy take off

Weight-loss drugs like Mounjaro are surging in popularity, making the following pair interesting stocks to think about buying today.

Read more »

British union jack flag and Parliament house at city of Westminster in the background
Investing Articles

As the FTSE 100 drops back below 10,000, how long can share prices keep falling?

FTSE 100 share prices are falling, but is it time to consider buying shares in the one industry that’s still…

Read more »

piggy bank, searching with binoculars
Investing Articles

As the stock market closes in on a correction, where are the buying opportunities?

Volatile share prices can bring huge buying opportunities. But which shares offer value with the stock market closer to correction…

Read more »

Middle-aged white man wearing glasses, staring into space over the top of his laptop in a coffee shop
Investing Articles

Will Lloyds shares return to £1 in 2026?

Only a few weeks ago Lloyds' shares were well above £1. Now however, they’re trading near 90p. Can they regain…

Read more »

Hand flipping wooden cubes for change wording" Panic" to " Calm".
Investing Articles

This could be the start of a stock market crash. Here’s what I’m doing…

Investors think geopolitical tension's the most likely cause of a stock market crash right now. If they’re right, it might…

Read more »