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.

Is one of these stocks the best mining buy on the market?

Should you pay up for proven performance or take a cheap bet on future gains?

| More on:

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!.

Shares in diamond miner Petra Diamonds (LSE: PDL) edged higher on Monday morning after the group said that profits rose by 12% to $66.8m during the year ending 30 June. Production rose by 16% to 3.7m carats, slightly ahead of Petra’s previous guidance.

Capital expenditure rose to $324.1m, as activity peaked on expansion projects at the Finsch and Cullinan mines. Both of these projects are expected to deliver more than 1m tonnes of ore in the current financial year, boosting both cash flow and profits.

Should you buy Petra Diamonds 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.

Indeed, while Petra shares trade on a trailing P/E of about 16, current broker forecasts indicate that Petra’s profits could double this year. This puts the stock on a forecast P/E of just 8. If the firm can deliver on its promises and the diamond market remains stable, the shares could be cheap at current levels.

However, before you hit the buy button on Petra, it’s worth remembering that the firm’s expansion is being funded by debt. One consequence of this is that Petra wasn’t allowed to declare a final dividend for last year.

Its net debt rose by 124% to $384.8m last year. This sharp rise in debt wasn’t matched by a corresponding rise in earnings and means that Petra didn’t satisfy the dividend conditions imposed by its lenders.

Although Petra is still complying with the other covenants relating to its loans, these have already been relaxed once. These revised covenants are only temporary, so Petra is now under pressure to deliver improved performance over the next 12 months.

I think the shares’ low forecast P/E makes sense at this point. I rate Petra as a hold, until the benefits of recent investment start flowing through to the firm’s financial results.

Bigger might be better

In contrast to Petra, iron ore and copper giant Rio Tinto (LSE: RIO) has no issues with debt. The group’s net debt has fallen by nearly a third since peaking in 2012, and profits are expected to bounce back strongly this year.

Rio shares currently trade on a forecast P/E of 15 and offer a prospective yield of 3.7%. This payout is expected to remain flat in 2017, as earnings growth slows to about 7%.

However, Rio’s two main commodities, iron ore and copper, are both in the middle of a prolonged downturn. It’s worth remembering that this won’t last forever — and when market conditions improve, Rio’s large-scale, low-cost assets will mean that profits should rise fast.

City analysts are also turning steadily more positive on Rio. Earnings forecasts for 2016 have risen from a low of $1.29 per share in February to $1.92 per share today. These forecasts tend to lag events, so a trend of rising forecasts is often a sign that further gains are likely.

In my view, Rio offers good long-term potential for both income and steady growth. Indeed, I rate Rio as one of the best big-cap buys in the mining sector. I believe this stock could well beat the wider market over the next few years.

Roland Head owns shares of Rio Tinto. The Motley Fool UK has recommended Rio Tinto. 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

House models and one with REIT - standing for real estate investment trust - written on it.
Investing Articles

How investing £4.50 a day could set you on the way to a £1,505 monthly second income

How can UK stocks with high dividend yields help investors earn a meaningful second income from the price of a…

Read more »

Investing Articles

Up 103% with a P/E of 261 — is this FTSE 100 stock still worth buying?

One FTSE 100 stock is quietly moving higher while most investors are still looking elsewhere — is the market missing…

Read more »

Concept of two young professional men looking at a screen in a technological data centre
Investing Articles

The smart money thinks AI stocks look risky — but is there still a chance to buy?

According to fund managers, the AI trade is getting crowded. But they still seem to think it’s the place to…

Read more »

Man putting his card into an ATM machine while his son sits in a stroller beside him.
Investing Articles

Barclays shares are 11% below their 52-week high. Could they be a bit of a bargain to consider?

Overpriced or one of the FTSE 100’s hidden gems? James Beard takes a closer look at how the market is…

Read more »

Stack of one pound coins falling over
Investing Articles

Down 65% but yielding 6.7% – is this beaten-down UK stock now a generational bargain?

Harvey Jones says this UK stock is one of the worst FTSE 100 performers but there are sound reasons to…

Read more »

Portrait of elderly man wearing white denim shirt and glasses looking up with hand on chin. Thoughtful senior entrepreneur, studio shot against grey background.
Investing Articles

Is this FTSE stock really 46% undervalued?

Analysts reckon this FTSE stock should be worth nearly 50% more. James Beard considers why there’s so much positivity surrounding…

Read more »

Front view of a young couple walking down terraced Street in Whitley Bay in the north-east of England they are heading into the town centre and deciding which shops to go to they are also holding hands and carrying bags over their shoulders.
Investing Articles

How much is needed in an ISA for passive income that covers the UK’s monthly average rent of £1,381?

The UK’s monthly average rent for May 2026 is £1,381. Muhammad Cheema looks at how much is needed to aim…

Read more »

A rear view of a female in a bright yellow coat walking along the historic street known as The Shambles in York, UK which is a popular tourist destination in this Yorkshire city.
Investing Articles

How have BAE Systems shares become a dividend powerhouse? 5 reasons why!

Dividends on BAE Systems shares have risen every year without fail since the early 2000s. So what's the FTSE 100…

Read more »